Answer:
1. 75 kilometers per hour
2. 5.4 kilometers
3. I expect the storm to arrive 2.3 hours.
4. Acceleration = 8.75 [tex]m/s^{2}[/tex]
5. 200 meters
6. The truck will take 7.5 seconds to stop
7. The object travels 150 meters within 10 seconds
Step-by-step explanation:
1. Average speed = [tex]\frac{distance}{time}[/tex]
[tex]= \frac{375}{5}[/tex]
= 75 kilometers per hour
2. Distance = speed × time
Time taken = 15 minutes
= 15 × 60
= 900 seconds
Distance = 6 × 900
= 5400 meters
= 5400/1000
= 5.4 kilometers
So, the boat traveled 5.4 kilometers.
3. Time = [tex]\frac{distance}{speed}[/tex]
= [tex]\frac{80}{35}[/tex]
= 2.286
So, I expect the storm to arrive in 2.3 hours.
4. Acceleration = Rate of change of velocity
= [tex]\frac{50-15}{4}[/tex]
= [tex]\frac{35}{4}[/tex]
= 8.75 [tex]m/s^{2}[/tex]
5. Distance = speed × time
= 50 × 4
= 200 meters
6. Time = [tex]\frac{velocity}{acceleration}[/tex]
= [tex]\frac{15}{2}[/tex]
= 7.5 seconds
The truck will take 7.5 seconds to stop
7. Distance = Velocity × Time
= 15 × 10
= 150 meters
Hence, the object travels 150 meters within 10 seconds.
Answer:
Number 6&8 are wrong
Number 6. is 130 m
Number 8. is 300 meters in 10 seconds
Step-by-step explanation:
Shara brought 3 bags of chocolate candies for $1.25 each and 3 bags of gummy bears for $2.00 each. How much did she spend in all?
let M represent the money spent.
Equation:_____________
Another way of writing this is:
Shara spent_______ on candy.
Answer:
Equation: 3(1.25) + 3(2.00)=M
answer:9.75
Step-by-step explanation:
how much time will it take a car travelling at 88km/hr(55mi/HR) to travel 500km?show work
Answer:
5 15/22 hours
5.6818 hours
Step-by-step explanation:
Distance is equal to the rate times the time
D = rt
We know the rate = 88 km/hr and the distance = 500 km
Substitute these in
500 = 88 *t
Divide each side by 88
500/88 = 88t/88
5 15/22 hours
5.6818 hours
What is the nearest cent per ounce in a 24 oz box of corn flakes that cost $4.59
Answer:
19 cents per ounce
Step-by-step explanation:
$1 = 100 cent
Amount of corn flakes = 24 oz
Cost of corn flakes = $4.59 = 459 cents
Cost per ounce = 459/24 =19.125 = 19 cents/ ounce
∴ The cost of corn flakes is 19 cents per ounce.
A solution is 20% bleach. Which graph represents the number of liters of bleach, y, contained in x liters of solution?
Answer: Choice D (lower right corner)
If we have x = 0 liters of solution, then we have y = 0.20*x = 0.20*0 = 0 liters of bleach. Therefore the point (0,0) is on the graph.
The point (10,2) is also on the graph because x = 10 leads to y = 0.20*x = 0.20*10 = 2; meaning 10 liters of solution points to 2 liters of bleach.
The only graph that has both points (0,0) and (10,2) is choice D in the lower right corner.
the builder measures the perimeter of the foundation to be 425 ft. he must order steel beams to install around the perimeter of the foundation. steel must be ordered in meters. how many meters of steel should the builder order ?
Answer:
The builder should order 129.54 meters of steal.
Step-by-step explanation:
I just went on google and typed in "ft. to meters converter".
The builder should order approximately 129.548 meters of steel.
Explanation:To convert from feet to meters, we need to know the conversion factor. 1 foot is approximately equal to 0.3048 meters. So, we can use this conversion factor to convert the perimeter from feet to meters.
Perimeter in meters = Perimeter in feet * Conversion factor
Perimeter in meters = 425 ft * 0.3048 m/ft
Perimeter in meters = 129.548 m
The builder should order approximately 129.548 meters of steel.
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-4/3x-6=-26
A. -27
B. -15
C. 15
D. 27
Answer:
C. 15
Step-by-step explanation:
-4/3x-6=-26
The first step is to add 6 to each side
-4/3x-6+6=-26+6
-4/3x =-20
Now multiply by -3/4 to isolate x.
-3/4 * -4/3x = -3/4 * -20
x = 60/4
x = 15
help me thx so much for ur help
To solve this problem, we first need to figure out how much tax will be applied to Neil's purchase. To do this, we need to multiply the tax rate (5%) by the cost of the washing machine ($445). But, we can't multiply percentages unless we change them to decimal form first. To do this, we need to divide the percentage by 100 (because 5 percent is a fraction out of a total 100 percent) or move the decimal point two spots to the left. This gives us the following:
0.05 * 445
If we compute this expression, we get:
$22.25
This means that Neil will be charged $22.25 in tax. However, the question asks for the total cost including tax, so we must add the original cost of the washing machine to the tax.
$445 + $22.25 = $467.25
Therefore, your answer is $467.25.
Hope this helps!
How do i calculate slope using this equation y = mx + b the coordinates i'm using are 63, 62 and 47,48. Note I'm using a scatter plot and i have to find the slope of it. Please give answer!
Answer:
To find slope you have to do rise over run. Use a graphing calculator such as desmos, and enter those cords. Find your y-intercept then see how much up and to the side you can go until hitting a point
Step-by-step explanation:
the quotient of a number and eight, increased by 3/4, is at least -1/4
Answer:
(x ÷ 8) + 3/4 ≥ -1/4
Step-by-step explanation:
Let "x" be a number.
The quotient of "x" and eight means x÷8
It is increased by 3/4
(x ÷ 8) + 3/4
The expression is at least -1/4
Here "at least" represents ≥
Therefore, (x ÷ 8) + 3/4 ≥ -1/4
Thank you.
What is h(x)= square root x-2
It all depends on the value of x. Remember that x must be greater than or equal to 2 or else the number under the square root sign will be negative, which will result in a complex number. The domain is 2<=x and the range is 0<=x.
Graphing it looks like this:
The function h(x) = square root x-2 is a square root function that takes the input x, subtracts 2 from it, and then takes the square root of the result.
Explanation:The function h(x) = √(x-2) represents a square root function. It takes the input x and subtracts 2 from it, and then takes the square root of the result. The function can be graphed as a curve that starts at (2, 0) and increases as x gets bigger. For example, if we plug in x = 4, h(4) = √(4-2) = √2.
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select the equation which graphs to a line with a slope of 7
A.y=7
b.x=7
c.y=7x
d.x=7y
PLEASE EXPLAIN
Answer:
Option c is correct.
Equation with slope of 7 is; [tex]y =7x[/tex]
Step-by-step explanation:
The Equation of line is in the form of :
[tex]y =mx[/tex] .....[1]
where
m represents the slope of the line.
x represents the variable.
Given : The slope of a line is 7
m = 7
substitute the value of m =7 in [1];
[tex]y = 7x[/tex]
Therefore, the equation of line which graphs to a line with a slope of 7 is, y =7x
PLEASE HELP FOR 30 POINTS. HURRY GOT TILL 9
Gina was given an irregularly shaped piece of metal and was told that the density of the metal was 12 g/cm3. She measured the mass of the piece to be 276 g. What was the volume of the piece of metal Gina was given? A. 23 cm3 B. 264 cm3 C. 288 cm3 D. 3,312 cm3
Answer:
A. 23 cm3
Step-by-step explanation:
V= mass ÷ density
12 g/cm3 is the density
276g is the mass.
So, 276 ÷ 12
= 23 cm3
Answer: 14 cm3
Step-by-step explanation:
Solve each equation. -9X+1=-80
Answer:
x=9
Step-by-step explanation:
-9x + 1 = -80
-9x = -81 substract 1 from both sides
x= 9 divide both sides by -9
The solution to the equation -9x + 1 = -80 is x = 9
To solve the equation -9x + 1 = -80, we aim to isolate the variable x on one side of the equation.
First, we can subtract 1 from both sides to get rid of the constant term:
-9x + 1 - 1 = -80 - 1
This simplifies to:
-9x = -81
Next, we divide both sides by -9 to solve for x:
(-9x) / -9 = (-81) / -9
This gives us:
x = 9
Therefore, the solution to the equation -9x + 1 = -80 is x = 9. When we substitute x with 9 in the original equation, we get -9(9) + 1 = -80, which is true, confirming the solution.
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Plz help me - 5/8 as a decimal?
Answer:
-0.625
Step-by-step explanation:
Given that a fraction negative in value with numerator -5 and denominator 8.
We have to convert this into decimals. For that we add as many zeroes after decimal point after 5 and divide with 8. The quotient what we get is value of the fraction.
To find in decimals, let us divide 5 by adding zeroes to the right
8)5.00000{0.625
4.8
-------
20
16
--------
40
40
------
0
-------------------------------
Hence in decimal form the fraction -5/8 = -0.625
A number line is shown. Which expression represents the distance between two points, X and Y, on the number line?
<--(-6)---(-4x)---(-2)---0---2-y-4--6-->
A.-4-3
B. -4+3
C. [-4-3]
D. [-4+3]
Answer: C. |-4 - 3|
Step-by-step explanation:
x = -4
y = 3
The distance between them is the difference. The mathematical operation for difference is subtraction.
Distance is a unit of measurement. Measurements cannot be negative so the absolute value sign is used to ensure the difference is positive.
The correct expression representing the distance between two points, X and Y, on a number line is D. [-4+3], which uses the absolute value to ensure a positive distance.
Explanation:The distance between two points X and Y on a number line can be calculated as the absolute value of the difference between their coordinates. In this case, the coordinates of X and Y are not provided, but we know we are looking for an expression that shows a positive distance regardless of whether X is to the left or to the right of Y on the number line. Therefore, we need the absolute value to ensure we get a non-negative result, which correctly represents the concept of distance.
Distance on a number line is given by the formula “|X - Y|”, which yields the magnitude of the difference between two points without considering direction, making it a positive number. Hence, the expression that represents the distance between two points, X and Y, on the number line in the provided options is D. [-4+3].
Using the provided expressions, [-4+3] means taking the absolute value of the result of “-4+3”, which indeed gives us the distance of 1 between the two points, since |-4+3| = |-1| = 1.
Joshua is making a calendar as a fund-raising project for math class. The cost of printing is $500 plus $2.50 per calendar. Joshua estimates that they math class will sell 200 calendars. What will the total cost be?
Helena deposited $89 into a saving account. According to the rule of 72 what interest rate will cause her money to double in approximately 38 years
The interest rate that will cause Helena's money to double in approximately 38 years is approximately 1.89%.
Explanation:An interest rate is the percentage at which interest is charged or paid on a loan, investment, or financial instrument over a specified period. It represents the cost of borrowing money or the return on invested capital. Interest rates are set by financial institutions, central banks, and market forces and influence economic activity. They can be calculated by the rule of 72 as well.
To find the interest rate that will cause Helena's money to double in approximately 38 years, we can use the rule of 72. The rule of 72 states that by dividing 72 by the interest rate, we can estimate the number of years it takes for an amount to double. In this case, if we divide 72 by 38, we get an interest rate of approximately 1.89%. Therefore, an interest rate of approximately 1.89% will cause Helena's money to double in approximately 38 years.
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classify each triangle
Answer:
This is an obtuse scalene triangle.
Step-by-step explanation:
This is an obtuse triangle. An obtuse triangle has an angle greater than 90 degrees. It is also a scalene triangle because none of the sides are equal.
Algebra 1 I need help ASAP
Find the depth of the river at 9 hours and 18 hours by seeing where the line is on the Y axis.
At 9 hours the river is 18 feet deep
At 18 hours the river is 21 feet deep.
The average rate of change is the change in Y over the change in X
The Y is the depth and the X is the time:
(21-18) / (18-9) = 3/9 = 1/3 = 0.33
The average rate of change is 0.3 foot per hour. ( Rounded to nearest tenth)
I need help!!! Please hurryy
Answer:
f(-3) = 6
Step-by-step explanation:
f(-3) is looking at the graph and determining the value of y at x=-3
We go over 3 to the left to x=-3 and go up 6 units to y= 6
f(-3) = 6
Easy please help!
A rental company rents a luxury car at a daily rate of $37.68 plus $.25 per mile. Vanessa is allotted $120 for car rental each day. Write an equation to represent the cost C of renting a car and driving x miles. How many miles can Vanessa travel on the $120?
0.25x + 37.68 = C
[The company charges $0.25 per mile (x) plus $37.68, and C is the total amount of money/cost]
Vanessa has $120 [total amount of money she is given per day],
Since this is the total amount of money she has/can pay with, you can plug in 120 for C
0.25x + 37.68 = 120 Subtract 37.68 on both sides
0.25x = 82.32 Divide 0.25 on both sides
x = 329.28
Vanessa can travel 329.28 miles on the $120
The equation representing the cost of renting a car is C = 37.68 + 0.25x. Setting this equation equal to Vanessa's budget of $120 and solving for x, we find that Vanessa can travel about 329 miles on her budget.
Explanation:The cost of renting a car for a day can be represented by the equation C = 37.68 + 0.25x, where 'C' is the total cost and 'x' is the number of miles driven. Vanessa has $120 allotted for each day. Therefore to find out how many miles she can travel, we can set the equation equal to 120 and solve for 'x'.
So, 120 = 37.68 + 0.25x
Subtract 37.68 from both sides to isolate the term with 'x'.
82.32 = 0.25x
Finally, divide both sides by 0.25 to solve for 'x'.
x = 329.28
Therefore, Vanessa can travel approximately 329 miles on $120.
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Tina uses a $50.00 gift certificate to buy a pair of pajamas for $17.97, a necklace for $25.49, and 3 pairs of socks that each cost the same amount. Tina has to pay $0.33 because the gift certificate does not cover the total cost of all the items. How much does each pair of socks cost?
Answer:
$2.29
Step-by-step explanation:
She spent the $50.00 gift certificate plus $0.33.
$50.00 + $0.33 = $50.33.
She spent a total of $50.33.
The pajamas cost $17.97.
The necklace cost $25.49.
The total cost of the pajamas and necklace is:
$17.97 + $25.49 = $43.46.
Since she spent a total of $50.33, we now subtract the amount she spent on the pajamas and necklace to find out the cost of the three pairs of socks.
$50.33 - $43.46 = $6.87
The three pairs of socks cost a total of $6.87.
Since all pairs of socks cost the same amount, we now divide $6.87 by 3 to find the price of each pair of socks.
$6.87/3 = $2.29
Each pair of socks costs $2.29.
whats the answer to the problem ?
Answer:
could you give what the problem is
Step-by-step explanation:
Dakota makes a salad dressing by combining 6 1/3 fluid ounces of oil and 2 3/8 fluid ounces of vinegar in a jar. She then pours 2 1/4 fluid ounces of the dressing onto Her salad. How much dressing remains in the jar?
Final answer:
To find out how much dressing remains in the jar, subtract the amount of dressing poured onto the salad from the total amount of dressing made.
Explanation:
To find out how much dressing remains in the jar, we need to subtract the amount of dressing poured onto the salad from the total amount of dressing made.
Dakota combines 6 1/3 fluid ounces of oil and 2 3/8 fluid ounces of vinegar, which gives us a total of 8 17/24 fluid ounces of dressing.
She pours 2 1/4 fluid ounces of the dressing onto her salad. To find out how much dressing remains, we need to subtract 2 1/4 from 8 17/24. Converting the fractions to a common denominator, we have (55/24) - (9/4) = 46/24 - 9/4 = 37/24. This means that 37/24 fluid ounces of dressing remain in the jar.
Multiplying fractions 4/9 times 54
Answer:
216/9 or simplified 24
Step-by-step explanation:
4
9
×
54
1
=
4 × 54
9 × 1
=
216
9
=
216 ÷ 9
9 ÷ 9
= 24
The value of the expression is 36
What are fractions?
Fractions are simply defined as expressions that are made up of part of a whole number, element, or variable
The different types of fractions in mathematics are;
Simple fractionsImproper fractionsProper fractionsComplex fractionsMixed fractionsFrom the information given, we have that the expression is;
4/9 times 54
Express mathematically, we have;
4/9 ×54
Divide by the common factor
4 × 6
Multiply the values
36
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please help its super easy!!!
well, 1/7th of the cupcakes is 3. so 2/7ths makes 6. and 21 minus 6 is 15. So, your answer is 15.
Answer:
1/7th of the cupcakes is 3. so 2/7ths makes 6. and 21 minus 6 is 15. So, your answer is 15.
Hope this helps
3x-13=74 solve for x
Answer:
x=29
Step-by-step explanation:
3x-13=74
We want to solve for x, so we need to isolate it.
The first step is to add 13 to each side.
3x-13+13=74+13
3x = 87
Then we divide by 3 on each side
3x/3 = 87/3
x= 29
Given: If a parallelogram has 4 congruent sides, then it is a rhombus.
Answer:
Yes
Step-by-step explanation:
A rhombus is a parallelogram with 4 congruent sides.
What is the circumference of a circle of a circle with a diameter of 2.9 use 3.14 for pi
Answer:
9.106
Step-by-step explanation:
The circumference of a circle with a given diameter is: [tex]C=\pi d[/tex]
We are given the diameter of 2.9 units.
Using 3.14 for pi:
[tex]C=3.14 * 2.9\\\\\boxed{C=9.106}[/tex]
The circumference is about 9.106 units.
Estimate with Percents 34% of 99 show ur work
Answer:
Alright well simplify the expression
33.66 Why???
Well write the problem as a mathematical expression
34% 99
Convert 30% to decimal
0.34 and 99
Multiply 0.34 by 99 which gives you
33.66 Hope this helps have a nice day :)
Step-by-step explanation: