Answer:
2. the final answer is -36n+3
3. the final answer is -4x-10
4. the final answer is 3c-81
5. the final answer is 17b-31
6. the final answer is 56y+64
7. the final answer is 24q+30
Note: I simplify each problem
Answer:
50, 60, 50, and 60
Step-by-step explanation:
xy = 3000
2x + 2y = 220
Rewrite the second equation
y = -x + 110
Substitute this into the first equation.
x(-x + 110) = 3000
-x^2 + 110x - 3000
Divide by -1
x^2 - 110x + 3000
(x - 60) (x - 50)
x = 60, 50
When x = 60, y = 50 and vice versa, so the sides are 50, 60, 50, and 60.
cups of sugar is used to make one batch of cookies.
So 6 batches would be
.
<span>×</span>
=
of sugar.
The answer is 4 1/2.
They are equal because
1 yd=3ft
25 yds= x feet
x= 25*3
feet=75
