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zheka24 [161]
3 years ago
6

Plz help me The perimeter of a rectangle is 90ft. the ratio of its length to its width is 8:7. What are the dimensions of the re

ctangle?
30ft by 15ft

26ft by 19ft

24ft by 21ft

20ft by25ft
Mathematics
1 answer:
Irina-Kira [14]3 years ago
8 0
8:7...added = 15

(8/15(90) / 2= 48/2 = 24
(7/15(90) / 2 = 42/2 = 21

dimensions are : 24 ft by 21 ft
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A fraction can compare the small parts of a whole, while it could also identify a division problem
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2 years ago
Principal: 300
marishachu [46]

Answer:

Step-by-step explanation:

HI there!

From the question;

Principal (p) = 300

Annual rate (r) = 3%

Time (t) = 4 yrs

Now;

Interest (I) = \frac{p*t*r}{100}

             I = \frac{300*4*3}{100}

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Therefore the interest earned is 36.

Again;

New balance (A) = principal + interest

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Therefore, the new balance is 336.

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8 0
2 years ago
A group of friends go to a local fair. Jason spends $3.75. My has spent three times as much as Jason. Tia spend $5.25 more than
lisov135 [29]

Answer:

$16.50

Step-by-step explanation:

If Jason spends $3.75 and Maya spends three times that amount, Maya spends 3.75(3) or $11.25. If Tia spends $5.25 more than Maya, Tia spends 11.25 + 5.25 or $16.50.

4 0
3 years ago
Madam Siti bought the same lengths of red and yellow ribbons. After she used 836 cm of the red ribbon, the length of the yellow
Yuliya22 [10]

Answer: 1045 cm of red ribbon and 1045 cm of yellow ribbon

<u>Step-by-step explanation:</u>

Let R represent the amount red ribbon and Y represent the amouont of yellow ribbon.

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Use substitution method to solve:

5(R - 836) = R

5R - 4180 = R   <em>distributed 5 on the left side</em>

4R - 4180 = 0   <em>subtracted R from both sides</em>

4R = 4180         <em>added 4180 to both sides</em>

R = 1045         <em>divided both sides by 4</em>


5 0
3 years ago
Read 2 more answers
Jose wants to build a model of a 18-meter tall building. He will be using a scale
NeTakaya
You have to use a proportion.

3.5/18= 1.5/x
3.5x=27
x= 7.7 cm
8 0
2 years ago
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