Answer:
11a. 15x + 6
11b. x + 8 < 16 or x + 8 - 16
12. 3x + 15 + 5x = 8x + 15
13. 7x + 31
Step-by-step explanation:
Answer:
46
Step-by-step explanation:
89
Answer:
90 cm²
Step-by-step explanation:
since the ratio is 1:6 for every one little box the bigger box increases 6 times.
so 15·6= 90 cm²
Answer:
7y+12x=-16
y-step explanation:
Multiply everything by 7 to get rid of the fractions.
Distribute the 12 into (x-1)
Then subtract 28 from the 12
Finally add the 12x over
