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3 years ago

A question which needs an answer, really urgent, plz answer the problem linked in the attachment

Mathematics

1 answer:

irina [24]3 years ago

4 0

Answer:

The answer to your question is 16 in²

Step-by-step explanation:

Data

Square Triangle

Length of a side 2 in

Base 2 in

Height 3 in

Process

1.- Calculate the area of the square

Area = side x side

-Substitution

Area = 2 x 2

-Result

Area = 4 in²

2.- Calculate the area of the triangle

Area = base x height / 2

-Substitution

Area = 2 x 3/2

-Result

Area = 3 in²

-Multiply the area by four (number of stars)

Area = 4 x 3 = 12 in²

3.- Calculate the area of the star

Area = Area of the square + area of the triangle

-Substitution

Area = 4 + 12 = 16 in²

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One person can do a certain job in 15 minutes and another person can do the same job in 30 minutes. How many minutes will it tak

Flauer [41]

Hello! Your answer is B, 10 minutes.

Say the x = minutes taken to do the job. You can set up an equation like this to solve this.

$\frac{1}{15} x + \frac{1}{30} x = 1$

This is representative of the situation. The fractions each represent how much each person does in a minute, and when they're multiplied by x, that's how much of the project they get done based off of the minutes they work together on the job. Add the two together, and you get how much of the project is finished in x amount of time. Set it equal to 1, as you are looking for 100% completion.

Once you have this equation, find a common denominator, add, and solve.

$\frac{1}{15} x + \frac{1}{30} x = 1$

$\frac{2}{30} x + \frac{1}{30} x = 1$

$\frac{3}{30}x = 1$

$\frac{1}{10}x = 1$

$x = 10$

Therefore, it will take them 10 minutes to do the job together.

Hope this helps!

8 0

3 years ago

Solve for ttt. 2(t+1) = 102(t+1)=10

densk [106]

Answer:

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2 years ago

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3 years ago

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have a nice day uvu

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2 years ago

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