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MakcuM [25]
2 years ago
5

Write an equation for the situation then solve for x.

Mathematics
2 answers:
kondor19780726 [428]2 years ago
5 0

Answer:

28

.75 * x = 21

x = 21/.75

x=28

Step-by-step explanation:

timurjin [86]2 years ago
4 0

Answer:

28 muffins

Step-by-step explanation:

Let x = the number of muffins

x*3/4 = 21

Multiply each side by 4/3

4/3 * 3/4x = 4/3 *21

x = 28

You started with 28 muffins

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3 years ago
Find the value of this expression if x= -7<br><br> x^2+5/x+1
Ray Of Light [21]

Answer:

-9

Step-by-step explanation:

Replace x with -7 in the expression:

x^2 + 5 / x + 1

-7^2 + 5 / -7 + 1

49 + 5 / -6

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simplify the fraction

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2 years ago
What is area of ths shape
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Step-by-step explanation:

(10x9) + (4x6)

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3 years ago
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Please help! Find the area and the perimeter of the shaded regions below. Give your answer as a completely simplified exact valu
Nadya [2.5K]

Answer:

The \ area \ of \ the \ figure = 4\dfrac{1}{2} \cdot \pi + 18 \ cm^2

Step-by-step explanation:

Given that the figure is made up of portion of a square and a semicircle, we have;

BC ≅ AB = 6 cm

The area of semicircle BC with radius BC/2 = 3 is 1/2×π×r² = 1/2×π×3² = 4.5·π cm²

Triangle ABC = 1/2 × Area of square  from which ABC is cut

The area of triangle ABC = 1/2×Base ×Height = 1/2×AB×BC = 1/2×6×6 = 18 cm²

The area of the figure = The area of semicircle BC + The area of triangle ABC

The area of the figure = 4.5·π cm² + 18 cm² = \dfrac{9 \cdot \pi +36}{2} \ cm^2.

5 0
3 years ago
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