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IgorLugansk [536]
3 years ago
10

How do I prove this?

Mathematics
1 answer:
Vadim26 [7]3 years ago
6 0
Incorrect info please upload a correct photo of the problem
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One year, the population of a city was 80,000. Several years later it was 66,400. Find
Shalnov [3]

Answer:

The population decrease by 17%.

Step-by-step explanation:

This is because 66,400 is 83% of 80,000.

100%-83%= 17%

Therefore, the percentage of the population that decreased was 17%

7 0
3 years ago
A grocery store advertises that 15 cups of granola cost $6.75. Which are equivalent prices
fgiga [73]

which of what are equivilent prices?

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3 years ago
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Reasoning Kareem cannot decide which of two washing machines to buy. The selling price of each is $720. The first is marked down
Marina CMI [18]

Answer:

store one

Step-by-step explanation:

Store One:

$720(0.50)=$360

$720-$360=$360

Store Two:

$720(0.30)=$216

$720-$216=$504

$504(0.20)=$100.8

$504-$100.8=$403.2

5 0
2 years ago
Write the fraction as the product of a whole number and. Unit fraction 2/5
zavuch27 [327]

Answer:

I don't know exactly what you mean but I think the answer is<u> .4</u>

Step-by-step explanation:

divide 2 and 5

4 0
3 years ago
ABC IS a right angled triangle at B and D is a point on BC. If AD=18cm , BD=9cm and CD = 4 cm, find AC
leva [86]
AB =  \sqrt{ AD^{2} - BD^{2} } =  \sqrt{243} = 9 \sqrt{3} &#10;
AC = \sqrt{ AB^{2} + BC^{2} } =  \sqrt{412} = 2 \sqrt{103}
4 0
3 years ago
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