Answer:
A
Step-by-step explanation:
7x + 3(x - 2) - 4x + 8
7x + 3x - 6 - 4x + 8
Combine like terms:
6x + 2
Hope this helps!
Well 12 is 3\4 of 16 so honestly it would take the 8 hours working together.
As far as formula if I had to guess it would look like.. 12Amy(Ay)- 16Alicia(Aa) = 4 hours minus 4 from Amy would be 8hours.
in fraction form might make more sense. 3\4 - 4\4 = 1/4 minus that from Amy and she'll finish together with Alicia 4 hours quicker being 8hours.
It should be 12cm because
h=height
a=area
b=base
h=a/b we have base 15cm and height 8cm
8cm=a/15cm
8cm*15cm=a
120cm^2=a
we then use the area to find the height with base 10
h=a/b
h=120cm^2/10cm
h=12cm
Answer:
7) 
8) 
Step-by-step explanation:
You must use the laws of exponents.
7)
When you raise a fraction to an exponent, raise the numerator and the denominator to that exponent.
When you raise a product to an exponent, raise each factor to that exponent.
When you raise an exponent to an exponent, multiply the exponents.
8)
To divide powers with the same base, subtract the exponents. Remember that a plain variable, such as w is the same as w^1.
