Answer:
x=5
Step-by-step explanation:
3 times 5= 15
15+21= 36
8 times 5 = 40
40-4=36
Answer:
Step-by-step explanation:
Ratio = 4/7 : 1/8

= 32 : 7

= 7 : 32
Ratio 4/7 over 1/8 is the multiplicative inverse of the ratio 1/8 over 4/7
Answer:
4: 32a^5 5: 2a / bc^2
Step-by-step explanation:
4. (2a)^3 / (2a)^-2
= (2a)^3 * (2a)^2
= 8a^3 * 4a^2
= 32a^5
5. 10a^7 b^9 c^6 / 5a^6 b^10 c^8
= 2a^7 b^9 c^6 / a^6 b^10 c^8
= 2a / bc^2