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2 years ago

Please help click on pictures

Mathematics

1 answer:

shutvik [7]2 years ago

3 0

Answer:

The area of the triangle is 40cm^2

Step-by-step explanation:

Calculate the area of a triangle using the equation: 1/2hb

Look at the attached picture and the equation should make sense.

You can use 8cm and 10cm.

8*10 = 80

1/2(80) = 40

So, the area of the triangle is 40cm^2

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Solve x^2 + x - 12 = 0

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Step-by-step explanation:

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1 year ago

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Answer:

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José collects stamps. He has 7 used stamps for every 4 new stamps. If he has 28 new stamps, how many used stamps does he have?

jenyasd209 [6]

Answer:

José has 49 used stamps

Step-by-step explanation:

7 used stamps for every 4 new stamps

To solve this type of problem, we can use a ratio

7 : 4 ratio

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7 : 4 = x : 28

Ratios can be written as fractions

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Cross multiply

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Divide by 4 on both sides

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Hope this helps :)

3 0

3 years ago

Please help click on pictures ​

Please help click on pictures