Answer:
Distribute, then combine like terms, subtract 10 from both sides of the equation, simplify, divide both sides of the equation by the same term, and simplify to get your solution.
Step-by-step explanation:
1.) Distribute
6−2(4−5)=40
6−8+10=40
2.) Combine like terms
6a-8a+10=40
-2a+10=40
3.) Subtract 10 from both sides of the equation
-2a+10=40
-2a+10-10=40-10
4.) Simplify
subtract the numbers
-2a+10-10=40-10
-2a=40-10
subtract the numbers
-2a=40-10
-2a=30
-2a=30
5.) Divide both sides of the equation by the same term
-2a=30

6.) Simplify
cancel terms that are in both the numerator or denominator

a=
Divide the numbers
a=
a=-15
a=-15
7.) Solution
a=-15
Answer:
70%
Step-by-step explanation:
Look it up
Answer:
1.2/15
2.4/11
3.1/12
4.2/23
5.3/10
6.51
7. 1
8.30
9.36/55
10.248/15
Step-by-step explanation:
hope it helps
Step-by-step explanation:
Given

as equation 1.
I used q-p as the difference as logically the woman will be older than her son.
Also given,

as equation 2.
Using equation 2,

substitute this equation into equation 1.

Substitute P into equation 2.

Therefore the woman is 45 years old while her son is 15 years old.
Answer:
A. 10
Step-by-step explanation:
Based on the midsegment theorem, thus:
2x + 7 = ½(7x - 16)
Multiply both sides by 2
2(2x + 7) = 7x - 16
4x + 14 = 7x - 16
Combine like terms
4x - 7x = -14 - 16
-3x = -30
Divide both sides by -3
x = 10