Answer:
a = 15/2
Step-by-step explanation:
3a−15=4a−3a
Combine like terms
3a - 15 = a
Subtract 3a from each side
3a-3a−15=a−3a
-15 = -2a
Divide each side by -2
-15/-2 = -2a/-2
15/2 =a
Answer:
850 songs
Step-by-step explanation:
3.4 ÷ 0.004 = 850
Hope this helps!! :)
Answer:
Step-by-step explanation:
Invert and multiply the second fraction.

All 4 parts of the two fractions can be factored into simpler factors.

Numerous cancelations can occur
- (x - 5) [top right with x - 5 bottom left]
- (x - 2) [top left with x - 2 bottom right]
Answer
Answer:

Step-by-step explanation:
Because we are told equivalent expressions for y and z we can plug those in to 2(y+z).

Then simplify by combining like terms of the expressions. Values ending in x^2 can be combined with each other.

Now we can distribute the 2 by multiplying each value in the parentheses by 2.

Answer:
18.52%
Step-by-step explanation:
Relative error can be described as the ratio of the measured absolute value to the actual value
relative error = (stated age - actual age) / actual age x 100
(32 - 27) / 27 x 100
5 / 27 x 100 = 18.52%