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Anettt [7]
3 years ago
13

Mavis is 5 years older than her brother. Five years ago she was 2 times older than her brother. How old is each now?

Mathematics
2 answers:
Ber [7]3 years ago
5 0
15 and 10 because

five years ago he would be 10 and the brother would be 5 and 10 is double 5

Andrei [34K]3 years ago
5 0
M=Mavis
B=Brother Age
M=B+5

Five years ago...
M-5
B-5
Since Mavis is twice her brother age you have to multiple by 2
(M-5) = 2(B-5)

Substitute M=B+5
(B+5-5) =2B-10

B=2B-10

-B=10
10+5=15

Mavis is 15
Brother is 10
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Answer: The profit after 5 seasons is $239.94.

Step-by-step explanation:

Since we have given that

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t(x)=3^x

Cost function is given by

r(x)=1.25^x

So, We need to find the total profit:

As we know the formula for profit:

Profit = Revenue - Cost

P(x)=t(x)-r(x)\\\\P(x)=3^x-1.25^x

We need to evaluate the profit after five seasons:

P(5)=3^5-1.25^5\\\\P(5)=\$239.94

Hence, the profit after 5 seasons is $239.94.

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3 years ago
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the total distance traveled by a car driving at a constant rate of speed. How far will the car have traveled after 10 hours?
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Julli [10]
The sum is the total of the given values being added.
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Rewrite the expression using the GCF and the distributive property (39+91)
inessss [21]

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Step-by-step explanation:

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then

GCF(39,91)=13

Use distributive property:

39+91=3\cdot 13+7\cdot 13=13\cdot (3+7)

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3 years ago
A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at
vitfil [10]

Complete question

A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at 7 meters per minute. At a certain instant, the bottom of the ladder is 21 meters from the wall.

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Answer:

\frac{dx}{dt}=11.94m/min

Step-by-step explanation:

From the question we are told that

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Horizontal length x=21

Generally in finding the distance form the  top to the bottom of the wall it is mathematically given by

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Generally solving for the differential equation is mathematically represented as

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 \frac{dx}{dt}=\frac{250.64}{21}

 \frac{dx}{dt}=11.94m/min

5 0
3 years ago
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