Answer: I don't know i'm taking a benchmark about that question an that pop up
Step-by-step explanation:
Answer:
17 and 10
Step-by-step explanation:
Write the problem as an equation.
a+b=27
a=b-7
Where a and b are the two numbers you are trying to find. You could use any variables. Then solve.
b+(b-7)=27 Sub (b-7) for a
2b-7=27 Group like terms
2b=34 Add 7 to both sides
b=17 Divide both sides by 2.
Because b=17, a must be 10.
1/u = 1/f -1/v
1/v = 1/u + 1/f
Answer:
The answer to question 3 is B.
Step-by-step explanation:
Answer: −8x−9
Step By Step:
Distribute the Negative Sign:
=−7x−14+−1(x−5)
=−7x+−14+−1x+(−1)(−5)
=−7x+−14+−x+5
Combine Like Terms:
=−7x+−14+−x+5
=(−7x+−x)+(−14+5)
=−8x+−9
Answer:
= −8x−9
