Answer:
63
Step-by-step explanation:
15 x 4.2
15 x 42 (get rid of the decimal by moving it one to the right)
15 x 42 = 630
630 = 63.0 (put the decimal back in by placing it one spot to the left)
Answer: 63
hope this helps :)
Answer:
- 4x + 36
Step-by-step explanation:
(
- 6)² = (
- 6)(
- 6)
Each term in the second factor is multiplied by each term in the firs t factor, that is
(
- 6) - 6(
- 6)
Distribute both parenthesis
=
- 2x - 2x + 36 ← collect like terms
=
- 4x + 36
Answer:
(x ÷ 8) + 23 – 4 = 36
x = 136
Step-by-step explanation:
I believe his brother is 4 at the moment, since 4*3 is 12. in 4 years John will be 16 and his brother will be 8, and 8 is half of 16. so 16?
Answer:
69.4 degrees.
Step-by-step explanation:
Complementary angles add up to 90 degrees so we have the equation:
4x + 3 + x + 4 = 90
5x + 7 = 90
5x = 83
x = 16.6
The larger angle = 4x + 3
= 4(16.6) + 3
= 69.4 degrees (answer).