Answer:
You will need to use simultaneous equations.
Method:
First we need to make one set of variable the same, in this case we will:
-Multiply the top equation by 3 to get 6x
-Multiply the bottom equation by 2 to get 6x
The result will be as follows:
1) 2x+5y=-13 x3
1) 6x+15y=-39
2) 3x-4y=-8 x2
2) 6x-8y=-16
Now we will make both equations equal to 6x:
1) 6x=-15y-39
2) 6x=8y-16
Now because they both equal 6x, they therefore equal each other:
-15y-39=8y-16
-23=23y
y=-1
Now that we have y, we can substitute it back into one of the equations to get x:
1) 2x+5(-1)=-13
2x-5=-13
2x=-8
x=-4
1. 430ft bc yu plug in the 8 for t seconds in the equation h=-16t^2+1454
2. m=5h bc yu multiply the # of hrs babysitting by 5
Answer:
Option B
Step-by-step explanation:
To solve this, the Pythagorean Theorem is needed. For option A, to make the statement true, 4 squared plus 7 squared MUST equal 9 squared. So, if you take 16 and add 49 to it you do NOT get 81.
For option B, 5 squared plus 12 squared is the same as 25 plus 144. That equals 169, which IS 13 squared.
It is not option C because 20 squared plus 22 squared doesn't equal 24 squared
Answer:
30 feet^2
Step-by-step explanation:
eeeeet eeeees what eeeeet eeeees
Answer:
276 inches
Step-by-step explanation:
First we need to convert 32 feet to inches.
The conversion factor is 12 inches to 1 foot.
Hence,
32 feet = 32 * 12 = 384 inches
In January, she orders 9 fewer feet. That is 32 - 9 = 23 feet
Let's convert this to inches:
23 * 12 = 276 inches
So, she orders 276 inches