7(3y-5) -2 (10+4y)
-distributive property-
2 answers:
Answer:
When using the distributive property, we can operate parenthesis:
![a*(b+c)=ab + ac](https://tex.z-dn.net/?f=a%2A%28b%2Bc%29%3Dab%20%2B%20ac)
So, in our case:
![7(3y-5) -2(10+4y)](https://tex.z-dn.net/?f=7%283y-5%29%20-2%2810%2B4y%29)
![7*3y+7*(-5) - 2*10-2*4y](https://tex.z-dn.net/?f=7%2A3y%2B7%2A%28-5%29%20-%202%2A10-2%2A4y)
![21y -35 - 20 - 8y](https://tex.z-dn.net/?f=21y%20-35%20-%2020%20-%208y)
![=13y - 55](https://tex.z-dn.net/?f=%3D13y%20-%2055)
So now we know the result is 13y - 55
Answer:
13y - 55
Step-by-step explanation:
Given
7(3y - 5) - 2(10 + 4y) ← distribute both parenthesis
= 21y - 35 - 20 - 8y ← collect like terms
= 13y - 55
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Step-by-step explanation:
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Parallel lines have the same slope but different y intercepts
Slope: 4
y=4x+b
this is the new equation, plug in the point
-10=4(-1)+B
-10=-4+B
add 4
-6=B
Y intercept= -6
slope; 4
Answer:
63
Step-by-step explanation:
3x^2+5y
Where X=4,Y=3
So
=3×4×4+5×3
=48+15
=63
So 63 is the answer
Your question was a little vague so i solves for x and y using elimination.
Your cost would be $5.00 because you are rounding up