Solve the system by the elimination method
6x+2y=-16
-x-3y=-16
a child is 2-1/2 feet tall. the child's mother is twice as tall as the child. how tall is the child's mother?
x + y = 4 x - 2y = -5 If the first equation is multiplied by 2 and then the equations are added, the result is _____.
is the answer 3x=3????
You brought 1.5 dozen bagels to school. A dozen bagels cost $5.98. You used a coupon that took $1.00 off of the total. How much did you pay for the bagels?
1 dozen cost 5.98
so 1.5 dozen cost : 5.98 x 1.5 = 8.97
a coupon takes $1 off the price so
8.97-1.00 = 7.97
they cost a total of $7.97
Answer:
$7.97
Step-by-step explanation:
multiply to find the total cost and then subtracting the coupon amount.
Alaska's glacier bay national park had 431,986 visitors one year the next year the park had22,351 more visitors than the year before how many people visited during the two years show your work and explain how you found your answer.
What is the first step in proving that the sum of the measures of triangle XYZ is 180 degrees?
solve for g 2/3+1/4g=-1/6
20 POINTS!!! WRONG ANSWERS WILL BE REPORTED!!
1.
(05.01 LC)
The graph below shows the height an elevator travels, y, in x seconds:
What is the rate of change for the relationship represented in the graph? (1 point)
A. 1/15
B.1/14
C.14
D.15
The rate of change for the relationship represented in the graph is 15
What is rate of change?The rate of change of a linear graph is the slope of the graph
From the graph, we have the following ordered pairs
(x,y) = (0,0) and (2,30)
So, the rate of change (m) is then calculated as:
[tex]m =\frac{y_2 -y_1}{x_2 -x_1}[/tex]
This gives
[tex]m =\frac{30 - 0}{2 - 0}[/tex]
Evaluate the differences
[tex]m =\frac{30 }{2 }[/tex]
Evaluate the difference
[tex]m=15[/tex]
Hence, the rate of change is 15
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how do we calculate QS? given that SQT and RPT are similar. thank you
since they are similar RT is similar to ST and PR is similar to QS
find the ratios
7/6 = x/9 cross multiply 7*9 =63
63/6 = 10.5
so QS = 10.5
The volume of a cube is 27n^27 cubic units. What is the length of one side of the cube
volume of a cube = S^3
volume = 27
cubic root of 27 = 3
each side is 3 units long
Which rate is equivalent to the unit rate of 15 miles per gallon?
thirty miles over three gallons
three gallons over thirty miles
four gallons over sixty miles
sixty miles over four gallons
Answer:
Fourth option is correct.
Step-by-step explanation:
Since we have given that
thirty miles over three gallons
Unit rate would be miles per gallon.
three gallons over thirty miles
Unit rate would be miles per gallon.
four gallons over sixty miles
Unit rate would be miles per gallon.
sixty miles over four gallons
Unit rate would be miles per gallon.
Hence, Fourth option is correct.
A total of 822 tickets were sold for the school play. They were either adult tickets or student tickets. They were 72 more student tickets sold then adult tickets. How many adult tickets were sold?
What is the answer to 8ab-2b+ab-b
What is number ll I'm in advanced math and this is the only one I don't know. I'm in the 7th grade and in 9th grade math please help me.
Thirty car pass through a certain toll booth each minute.at that rate,how many cars are expected to pass through the toll booth each half-hour
A 15
B 60
C 450
D 900
Answer:
the answer is d
Step-by-step explanation
correct on Edge
The answer is Option D)
The number of cars that are expected to pass through the toll booth each half-hour will be 900
What is Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
The number of cars that pass through the toll booth at each minute = 30
Let the number of cars to pass at each half-hour be A
1 hour = 60 minutes
half-hour = 30 minutes
So,
The number of cars to pass at each half-hour A =
The number of cars that pass through the toll booth at each minute x 30
The number of cars to pass at each half-hour A = 30 x 30
= 900 cars
Hence , The number of cars that are expected to pass through the toll booth each half-hour will be 900
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need help asap!!!plz help
One hundred students are asked a survey question as they walk through the front gate at their middle school. Is this a representative sample of the schools population?
Which number is the farthest from two on the number line
Answer:
2.1 is the answer
Step-by-step explanation:
Gene paid a deposit on a leased car. The deposit earns 2.8 percent simple annual interest. At the end of the year, the interest that is earned is $22.40. What was the amount of the original deposit?
Which problem can be solved using this equation? 400+100c=550+70c
A. One car salesperson makes a monthly salary of $100,$100, plus $400$400 commission for each car sold.
The other car salesperson makes a monthly salary of $70,$70, plus $550$550 commission for each car sold.
For which number of cars, cc, do they make the same amount in one month?
B.One car salesperson makes a monthly salary of $400,$400, plus $100$100 commission for each car sold.
The other car salesperson makes a monthly salary of $550,$550, plus $70$70 commission for each car sold.
For which number of cars, cc, do they make the same amount in one month?
C.One car salesperson makes $500$500 for each car sold.
The other car salesperson makes $620$620 for each car sold.
For which number of cars, cc, do they make the same amount in one month?
Answer:
One car salesperson makes a monthly salary of $400, plus $100 commission for each car sold.
The other car salesperson makes a monthly salary of $550, plus $70 commission for each car sold.
For which number of cars, c, do they make the same amount in one month?
what number is 10 times more than 8000
Easy question about triangles that I forgot what they look like so I feel too lazy to look them up (13 POINTS)
Line graphs are useful for seeing trends. How do you explain a line graph that goes up and down?
Explain how you know the valúes of the digits in the number 58
How do you write 120% as a fraction or mixed number in simplest form?
An item is regularly priced at $94. It is now priced at a discount of 30% off the regular price.
Is the decimal form of 13/3 a rational number
George has 9 more dollars than Frank, who has 3 more than Richard. What is the least amount of money that must be exchanged so that they each have the same amount of money?
I know the answer is $7 but is there a quicker way to do it instead of guess and check?
A box of photographs contains 13 wedding photographs 4 vacation photographs and 8 holiday photographs one is randomly selected what is the probability that the photograph is a holiday photograph given that it is not a wedding photograph
The probability that a randomly selected photograph from the box is a holiday photograph, given that it is not a wedding photograph, is 2/3 or approximately 0.67.
The question involves calculating the probability of drawing a holiday photograph from a box, given that the photograph is not a wedding photograph. First, we determine the total number of non-wedding photographs, then we find the probability that a photo selected is a holiday photograph from that subset.
There are 13 wedding photographs, 4 vacation photographs, and 8 holiday photographs. Given that we're not selecting a wedding photograph, we're only considering the vacation and holiday photographs, which total 4 + 8 = 12 photographs. The event of selecting a holiday photograph then has 8 favorable outcomes (since there are 8 holiday photographs).
The probability that the photograph is a holiday photograph given that it is not a wedding photograph is calculated by dividing the number of holiday photographs by the total number of vacation and holiday photographs:
Probability = Number of holiday photographs / Total number of non-wedding photographs = 8 / 12 = 2/3 or approximately 0.67