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Aleks04 [339]
3 years ago
7

Keenan currently does a total of 888 pushups each day. He plans to increase the number of pushups he does each day by 222 pushup

s until he is doing a total of 303030 pushups each day.
Which equation can we use to determine xxx, the number of days that it will take Keenan to reach his goal?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
8+2x=308+2x=308, plus, 2, x, equals, 30

(Choice B)
B
(8+2)x=30(8+2)x=30left parenthesis, 8, plus, 2, right parenthesis, x, equals, 30

(Choice C)
C
8(2+x)=308(2+x)=308, left parenthesis, 2, plus, x, right parenthesis, equals, 30

(Choice D)
D
8+2+x=308+2+x=30
Mathematics
1 answer:
marishachu [46]3 years ago
4 0

Answer:

8 + 2x = 30

Step-by-step explanation:

Given,

The initial number of push-ups he does in each day = 8,

And, the number of push-ups, he increases per day = 2,

Let x be the number of days after he will reach his target of 30 push-ups,

Since, the number of push-ups she will increase in x days = 2x,

Thus, the number of push-ups she will do after x days = 8 + 2x,

⇒ 8 + 2x = 30, which is the required equation.

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From the table we can see:
Number of songs:         Cost:
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3 0
3 years ago
Read 2 more answers
Two mechanics worked on a car. The first mechanic charged $65 per hour, and the second mechanic charged $90 per hour. The mechan
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Answer:

First mechanic worked 20 hours and second mechanic worked 5 hours

Step-by-step explanation:

Let the number of hours the first mechanic worked = a

Let the number of hours the second mechanic worked = b

Therefore, we can write 2 equations and then solve them simultaneously:

a+b=25

65a+90b=1750

Rearranging the first equation: a=25-b

and substituting into the second equation to find b:

65(25-b)+90b=1750

1625-65b+90b=1750\\
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Now sub b=5 into the first equation to find a

a+5=25\\
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Therefore, first mechanic (a) worked 20 hours and second mechanic (b) worked 5 hours

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Gradient of function 2 = (10 - 6)/(3 - 1)
= 2

Therefore, since 4 > 2, rate of change of function 1 > rate of change of function 2.
6 0
3 years ago
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