Question

Please help...again lol sorry i suck at math

Answer 1

4)

565 + 87x = 1,000

87x = 435

x = 5

each guest must bring 5 cans to meet the goal, therefore your answer is d

answer: D



2)

step 1: -6(x+3) + 10 < -2
step 2: -6x - 18 + 10 < -2
step 3: -6x - 8 < -2
step 4: -6x < 6
step 5: x > -1

she messed up between the last two steps because when you divide across the sign by a negative number, you must flip the sign.

answer: D



3)

85 - 4x < 40

-4x < -45

x > 11.25

mr. schwartz will need to order more wheels after building 12 cars, because after 11 cars he will still have over 40, yet after 12 he’ll fall under.

answer: 12



5)

.3(x - 4) > -0.3

.3x - .075 > -0.3

.3x > -.225

x > -.75

answer: i did the number line thing in the image below