14000+7x=35x (x being the number of books) solve for x and you have your answer. 14000=35x-7x=28x therefore x=14000/28=500 so he needs to sell 500 books before he breaks even.
Answer: -3x-5
Step-by-step explanation:
Answer: 228 yds^2
Step-by-step explanation:
Surface Area= 2 (L x W) + (L x H) + (W x H)
2×(6×4 + 6×9 + 4×9) = 228
Rewrite in slope-intercept form, y = mx + b, so that you can compare the slopes.
y = 4x + 6 m = 4
- 15x + 3y = - 45
add 15x to each side
3y = 15x - 45
divide both sides by 3
y = 5x - 15 m = 5
No, the slopes are different.