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2 years ago

you deposit $50 in your savings account.one week later you withdraw $20.write each amount as an interger

1 answer:

5 0

The 50 dollars is positive, you are adding it to your account. (50)

The 20 dollars is negative, you are withdrawing/removing it. (-20)

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marusya05 [52]

Use the formula

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And you should get your answer.

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2 years ago

Geometry question please help

Licemer1 [7]

Answer:

BE=AD

Step-by-step explanation:

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3 years ago

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The area of a triangle varies jointly with the lengths of its base and height. A triangle with a base of 10 ft and a height of 4

Assoli18 [71]

Answer:

<h2>12 square ft </h2>

Step-by-step explanation:

<h3>base = 3ft. and height = 8ft. </h3><h3>area of triangle = 1/2 ×base × height</h3><h3> = 1/2 ×3 × 8</h3><h3> = 24 /2</h3><h3> = 12 square ft. </h3>

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2 years ago

Sarah needs 30 liters of a 25% acid solution how many liters of the 10% and the 30% acid solutions should she mix to get what sh

sweet-ann [11.9K]

Answer:

7.5 L of 10% solution and 22.5 L of 30% solution

Step-by-step explanation:

Volume of 10% solution plus volume of 30% solution = total volume of 25% volume.

x + y = 30

Acid in 10% solution plus acid in 30% solution = total acid in 25% solution.

0.10 x + 0.30 y = 30 × 0.25

0.10 x + 0.30 y = 7.5

Solve the system of equations, using either substitution or elimination. I'll use substitution:

x = 30 − y

0.10 (30 − y) + 0.30 y = 7.5

3 − 0.10 y + 0.30 y = 7.5

0.20 y = 4.5

y = 22.5

x = 30 − y

x = 7.5

Sarah needs 7.5 L of 10% solution and 22.5 L of 30% solution.

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3 years ago

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Which equations match the graph? 5 STARS AND BRAINLYEST

Eva8 [605]

I believe that the answer is ‍♀️

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3 years ago

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