Answer:
option B
Step-by-step explanation:
We have:
3x^2+7x+3 and 5x^2+12x
where
a=3x^2+7x+3
b=5x^2+12x
a+b=3x^2+7x+3 +5x^2+12x
we sum each term:
3x^2+5x^2=8x^2
7x+12x=19x
3+0=3
so we have: a+b= 8x^2+19x+3
finally we have
8x^2+19x+3= option B
Answer:
Divide both sides by 5.
Step-by-step explanation:
Divide both sides by same non-zero constant.
Answer:
3 pizza
Step-by-step explanation:
four people eat 3/4 of pizza
4*3/4=12/4=3 pizzas
Answer:
4x + 10
Step-by-step explanation:
Given
Let


So:
--- first 2 hours
--- last 3 hours
Required
Distance covered in the first 2 hours
Distance (d) is calculated as:

i.e.

For the first 2 hours, we have:

So:

Open bracket


<em>Hence, the distance covered in 4x + 10</em>