It was estimated that a giraffe would be 15.5 feet tall when fully grown. its actual height was 16.25 feet. what was the percent error between the actual and estimated values of height
Carla and Brandon are members of two different magazine programs where any magazine ordered is the same price, regardless of the magazine ordered.
Carla pays $9.44 for 4 magazines, and she pays $21.24 for 9 magazines.
The equation below represents the amount of money Brandon pays for x magazines.
y = $2.87x
Who pays more per magazine?
A.
Brandon and Carla pay the same price per magazine.
B.
Carla pays more per magazine.
C.
Brandon pays more per magazine.
D.
There is not enough information to determine the price per magazine.
Brandon pays more per magazine
What is Linear equations ?
Linear Equation is an equation in which the highest power of the variable is always 1 .
From question it is given ,
Carla pays $9.44 for 4 magazines
Let cost of one magazine is '$m'
4 * m = $9.44
m = 9.44 /4 = 2.36
hence , Carla paid $ 2.36 for one magazine
In case of Brandon ,
from equation y = $ 2.87 x
it can be seen that he paid $ 2.87 per magazine
Hence , answer is c) Brandon pays more per magazine
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Find a report in a newspaper magazine or on the Internet that uses results from a servery. Evaluate how the survey uses ratios to reach
conclusion
The state of Colorado has roughly the shape of a rectangle that is 3.8 x 102 miles long and 2.8 x 102 miles high. What is the approximate area of Colorado? Hint: The area of a rectangle is the product of its length and width.
A snail is at the bottom of a well. In the first 10 minutes, the snail climbs 23 7/12 inches. In the next 10 minutes, it clims 19 5/6 inches. How far is the snail from the bottom of the well after 20 minutes?
PLEASE HELP ME ASAP! I HAVE A UNIT TEST! Jessica is filling glasses with water. Each glass holds 3/5 cup of water. She pours 4 1/5 cups of water into the glasses. How many glasses does she fill with water?
11x-9=108 What is the answer to this equation?
11x-9 = 108
add 9 to both sides:
11x = 117
divide both sides by 11
x = 117 / 11 = 10.63636364
140% or 0.14 which is greater?
a cricket chirps 40 times a minute when the temperature is 50 degrees. write an equation representing the temperature in terms of number of chirps per minute
The relationship between temperature and the number of chirps per minute can be represented by the equation C = 0.8T, where C is the number of chirps per minute and T is the temperature.
Explanation:The relationship between the temperature and the number of chirps per minute can be represented by an equation.
Let's assume that the temperature is denoted by T and the number of chirps per minute is denoted by C. According to the given data, when the temperature is 50 degrees, the cricket chirps 40 times per minute. We can use this information to write the equation as:
C = kT
where k is a constant.
To solve for the value of k, we can substitute the temperature and the number of chirps per minute into the equation:
40 = k * 50
Dividing both sides by 50 gives us:
k = 40/50 = 0.8
Therefore, the equation representing the temperature in terms of the number of chirps per minute is:
C = 0.8T
The selling price of an item is $650 It is marked down by
10%, but this sale price is still marked up from the cost of $450
Find the markup from cost to sale price.
Answer:
10%×$650=$585
$585-$450=$135 Mark up.
Step-by-step explanation:
The markup from cost to sale price is $135.
What is the cost price?Cost price, for instance, equals selling price plus profit ( when selling price and profit is given ) Cost is equal to Selling price plus Loss ( when selling price and loss is given )
Cost price = 100 Selling Price + 100 + Profit (where the Selling Price and Profit Percentage are supplied)
Given the selling price of item = $650
The cost = $450
Therefore,
10% × $650 = $585
$585-$450=$135
Hence, the markup from cost to sale price is $135.
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8.50 as a rational number?
What is the product in simplest form? −8/9⋅5/6
A.−1
B.−13/15
C.−20/27
D.−15
What are the opposites of the whole numbers from 35 to 45
The opposites of the whole numbers from 35 to 45 are; -35, -36, -37, -38, -39, -40, -41, -42, -43, -44, -45.
How to label number opposites?
The opposite of a number is the opposite sign of that same number. Thus;
Opposite of a is -a.
Opposite of -b is b.
Now; Numbers from 35 to 45 are; 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45.
Thus, their opposites are; -35, -36, -37, -38, -39, -40, -41, -42, -43, -44, -45.
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Pilar used five reusable shopping bags recent purchase she made at a grocery store. Each bag decreased the amount she spent by 10 cents. What was the change to the amount Pilar spent at the grocery state by using the reusable bags?
Pilar saved a total of $0.50 by using five reusable shopping bags, with each bag providing a $0.10 discount on her purchase.
Pilar used five reusable shopping bags for a recent purchase she made at a grocery store, where each bag decreased the amount she spent by $0.10. To calculate the total amount saved by Pilar, we must multiply the number of bags by the savings per bag. So the calculation is as follows:
Number of reusable bags = 5
Savings per bag = $0.10
Total savings = Number of reusable bags imes Savings per bag = 5 imes $0.10 = $0.50
Therefore, by using the reusable bags, Pilar saved a total of $0.50 on her grocery purchase.
Patel squeezed oranges so that his family could have fresh-squeezed juice for breakfast. He squeezed 4/17 cups from the first orange, 3/10 cups from the second orange, 9/20 cups from the third orange, 3/11 cups from the fourth orange, and 7/15 cups from the fifth orange. Patel estimates that he needs 2 cups of orange juice for his family. About how much more orange juice does he need?
The amount of juice needed is about 0.487 cups
Amount of oranges squeezed :
First orange = 4/17 cups
Second orange = 3/10 cups
Third orange = 9/20 cups
Fourth orange = 3/11 cups
Fifth orange = 7/15 cups
Total amount of oranges needed = 2 cups
The amount of extra orange needed = x
Adding :
(4/17 + 3/10 + 9/20 + 3/11 + 7/15) + x = 2
(13200 + 168300 + 252450 + 153000 + 261800) / 561000
(848750 / 561000) + x = 2
1.5129 + x = 2
x = 2 - 1.5129
x = 0.4871 cups
The amount of juice needed is about 0.487 cups
Marjorie consumed 1.5 gallons of water in one day. How many milliliters are equal to 1.5 gallons, if 1 liter = 1,000 milliliters and 1 gallon = 3.785 liters? (3 points)
5.6775 milliliters
567.75 milliliters
5,677.5 milliliters
56,775 milliliters
The amount of water consumed each day is 1.5 gallons = 5667.5 millilitres. The correct option is C.
What is unit conversion?Multiplication or division by a numerical factor, selection of the correct number of significant figures, and unit conversion are all steps in a multi-step procedure.
The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
The amount of water in millilitres will be calculated as,
1 Gallons = 3.785 litres
1.5 Gallons = 3.785 x 1.5 litres
1.5 Gallons = 5.6775 litres
1.5 gallons = 5.6775 x 1000 mililitres
1.5 Gallons = 5677.5 mililitres
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)Maya is showing her work in simplifying (5.2 − 4.5) − 5.5 + 4.8. Identify any error in her work or reasoning.
Step 1: (5.2 − 4.5) − 5.5 + 4.8
Step 2: 5.2 + (− 4.5 − 5.5) + 4.8 (identity property)
Step 3: 5.2 − 10 + 4.8
Step 4: 5.2 + 4.8 − 10 (commutative property)
Step 5: 10 − 10 = 0
Answers:
A. She wrote identity instead of commutative in Step 2.
B. She wrote commutative instead of distributive in Step 4.
C. She wrote identity instead of associative in Step 2.
D. She wrote commutative instead of associative in Step 4.
Hello,
The correct answer is C) She wrote identity instead of associative in Step 2.
Hope this helps!!!! :)
**(Vanessa)**
Saeed's house is 6,000 meters away from Anna's house. How many kilometers apart are their houses?
1 kilometer = 1000 meters
6000 meters / 1000 = 6 kilometers
Solve for x, assuming a, b, and c are negative constants.
(ax + b)/c ≤ b
Solving for some variable means finding its value for which the given statement is true. Thus, the solution to given inequality is [tex]x \leq \dfrac{b(c-1)}{a}[/tex] (if a/c is non-negative)or [tex]x \geq \dfrac{b(c-1)}{a}[/tex] (if a/c is negative)
What type of operations are allowed in inequality?All such operations such that inequality doesn't gets modified( for example, if left expression is bigger than right one, then that expression cannot go bigger than the later expression).
For the given case, the inequality given is:
[tex](ax+b)/c \leq b[/tex]
Its solution can be found by doing operations which doesn't modify the inequality and takes all the terms such that one side is 'x' and other side are constants.
[tex](ax+b)/c \leq b\\\\\dfrac{a}{c}x + \dfrac{b}{c} \leq b\\\\\text{Subtracting b/c from both the sides}\\\\\dfrac{a}{c}x \leq b - \dfrac{b}{c}\\\\\text{Supposing that a/c is non-negative, multiplying both sides by c/a}\\\\x \leq \dfrac{c}{a} \times \dfrac{bc - b}{c} = \dfrac{b(c-1)}{a}\\\\x \leq \dfrac{b(c-1)}{a}[/tex]
(i assumed a/c non-negative, since multiplying with negative quantity can modify the sign of inequality, so ≤ would have become ≥ )
If a/c is negative, then:
[tex]x \geq \dfrac{c}{a} \times \dfrac{bc - b}{c} = \dfrac{b(c-1)}{a}\\\\x \geq \dfrac{b(c-1)}{a}[/tex]
Thus, the solution to given inequality is [tex]x \leq \dfrac{b(c-1)}{a}[/tex] (if a/c is non-negative)
or [tex]x \geq \dfrac{b(c-1)}{a}[/tex] (if a/c is negative)
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Final answer:
To solve for x, we can multiply both sides of the equation by c, subtract b from both sides, and then divide both sides by a to isolate x. The solution is x ≤ (bc - b)/a.
Explanation:
To solve for x in the equation (ax + b)/c ≤ b, we can first multiply both sides of the equation by c to eliminate the denominator:
ax + b ≤ bc
Next, we can subtract b from both sides:
ax ≤ bc - b
Finally, we divide both sides by a to isolate x:
x ≤ (bc - b)/a
Since a, b, and c are negative constants, the values of b and c are negative. Therefore, the numerator of the inequality will always be negative, resulting in a positive value for x. So the solution is:
x ≤ (bc - b)/a
What is 76912 divided by 92
Drag and drop a phrase to make the statement true.
Triangles ABC and DEF are .
similar triangles or not similar triangles
Since m<B is equal to m<E, hence the angles are similar triangles
To determine if both triangles are similar, all the interior angles of the triangles must be equal to each other that is;
m<B = m<Em<C = m<FGet the measure of angle B
The measure of the interior angle of the triangle is 180 degrees
m<D + m<E + m<F = 90
90 + m<E + 55 = 180
m<E = 180 - 145
m<E = 35 degrees
Since m<B is equal to m<E, hence the angles are similar triangles
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last year there were 20 girls on the volleyball team this year the number of girls decreased by 10% how many girls are on the volleyball team this year
What is the equation of this line? y=12x−2 y=−2 x−2 y=2 x−2 y=−12x−2
Naomi drank 3/4 of a 20.8 ounce container of apple juice. How much ounces of apple juice did Naomi drink????
simplify rational expression
In order to simplify, we want to change the 10 - x to an x - 10.
To do that, we can factor out a -1.
So we have -1(x - 10)/(x - 10).
Now our x - 10's cancel leaving us with -1.
What is the simplified value of the expression below? 8.5+(12+4)x2-7
A. 10.5
B. 33.5
C. 88.5
D. 97.5
Answer:33.5
Step-by-step explanation:
The rabbit population in a certain area is 500% of last years population. There are 900 rabbits this year. How many were there this year?
Answer:
180 rabbits
Step-by-step explanation:
The correct question is
The rabbit population in a certain area is 500% of last years population. There are 900 rabbits this year. How many were there last year?
we know that
900 rabbits represent 500% of last year population
Last year population represent 100%
so
using proportion
Find out how many rabbits represent a percentage of 100%
[tex]\frac{900}{500\%}=\frac{x}{100\%}\\\\x=900(100)/500\\\\x=180\ rabbits[/tex]
Answer:180
Step-by-step explanation:
What is true about the product, a fraction less than 1 is multiplied by 9/10
yasmine bought 6 gallons of apple juice. after filing up 4 bottles of the same juice, she had 0.3 gallons of apple juice left. What's the amount of apple juice in each bottle?
1.425 gallons/bottle
Further explanationGiven:
Yasmine bought 6 gallons of apple juice. After filling up 4 bottles of the same juice, she had 0.3 gallons of apple juice left.Question:
What is the amount of apple juice in each bottle?
The Process:
Let the amount of apple juice in each bottle as X.
The two steps for obtaining X are as follows:
Step-1: the total amount of apple juice is the initial gallon amount subtracted by the remaining gallon amount.
[tex]\boxed{ \ 6 \ gallons - 0.3 \ gallons = 5.7 \ gallons \ }[/tex]
Step-2: the total amount of apple juice divided by the number of bottles is the amount of apple juice in each bottle.
[tex]\boxed{ \ X = 5.7 \ gallons \div 4 \ bottles = \boxed{ \ 1.425 \ gallons/bottle \ } \ }[/tex]
Quick steps:
[tex]\boxed{ \ X = \frac{(6 - 0.3) \ gallons}{4 \ bottles} = \boxed{ \ 1.425 \ gallons/bottle \ } \ }[/tex]
Thus, the amount of apple juice in each bottle is 1.425 gallons.
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The size of each bottle that is filled by apple juice is [tex]\boxed{\bf 1.425}[/tex].
Further explanation:
Given:
Yasmine bought [tex]6[/tex] gallons of apple juice.
She filled up [tex]4[/tex] bottles of same size.
She had [tex]0.3[/tex] gallon of apple juice left.
Calculation:
Consider the size of each bottle is [tex]x[/tex] gallons.
Total size of each bottle is [tex]4x[/tex] gallons.
Total amount of apple juice used in these [tex]4[/tex] gallons can be obtained by subtracting total amount of apple juice to remaining apple juice.
[tex]\boxed{6-0.3=5.7}[/tex]
Therefore, total size of the [tex]4[/tex] bottles is [tex]5.7\text{ gallon}[/tex].
Write the equation for the total size of the bottles.
[tex]\boxed{4x=5.7}[/tex]
Now find the value of [tex]x[/tex] which gives the size of the bottles.
[tex]\begin{aligned}4x&=5.7\\x&=\dfrac{5.7}{4}\\x&=1.425\end{aligned}[/tex]
Therefore, the size of each bottle that is filled by apple juice is [tex]\boxed{\bf 1.425}[/tex].
Simple method:
First find the total size of bottle and then divide by [tex]4[/tex].
The total size of each bottle can be obtained as follows:
[tex]6-0.3=5.7[/tex]
The size of each bottle can be obtained as follows:
[tex]\dfrac{5.7}{4}=1.425[/tex]
The size of each bottle that is filled by apple juice is [tex]\boxed{\bf 1.425}[/tex].
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Answer details:
Grade: Middle school
Subject: Mathematics
Chapter: Algebraic expression
Keywords: Yasmine, apple juice, juice, 6 gallons, 0.3 gallons, filled, equally, bottles, juice, poured,1.425, liters, size, amount, equation, total size.
Anna is making soft toys she can sell at the fair. She can make 3 soft toys in 5 hours. How many soft toys can she make in 20 hours?
A. 10
B. 12
C. 16
D. 20
Answer:
B.12
Step-by-step explanation:
We can calculate it with a direct rule of 3. If in 5 hours she can make 3 soft toys, how many soft toys will she make in 20 hours?
[tex]\text{5 hours} -\!\!\!-\!\!\!- \text{3 soft toys}\\ \text{20 hours} -\!\!\!-\!\!\!- \text{x soft toys}[/tex]
We use the formula of the direct rule of 3:
[tex]x = \frac {20*3}{5} \\ \\ x = \frac {60}{5}\\[/tex]
x = 12
She can make 12 soft toys in 20 hours.