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Alisiya [41]
3 years ago
5

How do you solve sarah is twice as old as her youngest brother. if the difference between their ages is 15 years. how old is her

youngest brother?
Mathematics
1 answer:
marishachu [46]3 years ago
3 0
The youngest brother is 15 years old
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PLZ HURRY ITS TIMEDDD
Dafna11 [192]

Answer:

Option C. 4(20-16y): Each side measures 20-16y units.

Step-by-step explanation:

we know that

The perimeter of a square is equal to

P=4b

where

b is the length side of the square

we have

P=(80-64y)\ units

substitute the given value in the formula

(80-64y)=4b

solve for b

Divide by 4 both sides

(20-16y)=b

Rewrite the expression

b=(20-16y)\ units

<em>Alternative Method</em>

we have

P=(80-64y)\ units

Factor 4

P=4(20-16y)\ units

so

Each side measures (20-16y) units.

7 0
3 years ago
The number of bacteria in a culture is expected to grow 82% per hour over the next several hours. The predicted change in the nu
Advocard [28]
If my simplification is valid the answer is:

1.4 % growth each minute

I don’t feel like the representation
P = 120(1.82) is important in this certain problem.

So P the predicted number of bacteria is not practical with this problem.

Use the 82% per hour and divide it by 60 because there are 60 minutes in an hour.

When doing this you find the rate in which bacteria grows which is about 1.4%.

The prediction is about 1.82 percent for 120 something it’s not clarified, but I’m guessing that’s minutes.

So you can prove that the prediction is over the rate in which bacteria grows per minute.
4 0
1 year ago
Linda, Tony, and deon have a total of $99 in their wallets. Tony's has 4 times what deon has. Linda has $9 more than Deon. How m
Westkost [7]

Answer:its 9 just ook the tsest

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How many samples of size 2 can be formed from population of size 5
klemol [59]

Answer:

2

Step-by-step explanation:

5 0
3 years ago
18
Roman55 [17]

Answer:

  2.53×10^8 liters

Step-by-step explanation:

  (8.65×10^3 L/da)(0.292×10^5 da) ≈ 2.53×10^8 L

3 0
3 years ago
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