Answer:
b
Step-by-step explanation:
Answer:
2.5
Step-by-step explanation:
Answer:
10x + 12 and 6x² + 11x - 7
Step-by-step explanation:
The perimeter (P) of a rectangle is calculated as
P = 2l + 2w ( l is length and w is width )
= 2(2x - 1) + 2(3x + 7) ← distribute parenthesis
= 4x - 2 + 6x + 14 ← collect like terms
= 10x + 12
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The area (A) of a rectangle is calculated as
A = lw
= (2x - 1)(3x + 7) ← expand using FOIL
= 6x² + 14x - 3x - 7 ← collect like terms
= 6x² + 11x - 7
Answer: I think it’s B
Not sure tho
Explanation
Answer:
Number of hours= (Total earnings+ Total costs)/$15
Mika worked 18 hours
Step-by-step explanation:
Mika´s earnings function is:
Total earnings= Total Payment-Total costs
The total payment depends on the number of hours Mika took to pint the neighbor's fence:
Total earnings= $15x-Total costs
Now we transform this equation to know the number of hours worked:
Total earnings+Total costs= $15x
(Total earnings+ Total costs)/$15=x
x= $174+$96/$15
x= 18
Mika worked 18 hours