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sukhopar [10]
2 years ago
14

Which is bigger 80%of 90 or 1/2 of 140

Mathematics
1 answer:
lyudmila [28]2 years ago
4 0

Answer:80% of 90 is bigger


Step-by-step explanation:

80% of 90


N= 90/100×80

N= 90/100× 80/100

N=7200/100

N=72


So 80% of 90 is 72


1/2 of 140

70+70=140

So half of 140 is 70.

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Ostrovityanka [42]
160/9 or in decimal form it is 17.7 and the 7 repeats
8 0
3 years ago
A building is 200ft long and 140 ft wide a 1/500 model is built of the building how long and how wide is the model?
Katena32 [7]
Let's start with the length. All you need to do is multiply is by 1/500.
You could also find the decimal equivalent to 1/500.
1/500= .002
200×.002= .4
So length of the model is .4 ft.
The width:
.002×140=.28
The width of the model is .28 ft.
The length of the model is .4 ft and the width of the model is .28 ft.

4 0
2 years ago
luke has $1.40 in quarters and nickels. he has 2 more quarters than nickels. how many coins of each type does he have?
Ainat [17]

Answer:

3 nickels and 5 quarters

Step-by-step explanation:

Let n = number of nickels

q = number of quarters

q = n+2

.25q + .05n = 1.40

Using the first equation and replacing q in the second equation

.25( n+2) + .05n = 1.40

Distribute

.25n+.50 +.05n = 1.40

Combine like terms

.30n +.5 = 1.40

Subtract .5 from each side

.3n +.5-.5 = 1.40-.4

.3n = .9

Divide by .3

.3n/.3 = .9/.3

n = 3

q = n+2

q=5

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The runner ran 5/6 then he ran 9/10 more how much did he run in all
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