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Cloud [144]
3 years ago
15

sofia recycled 3 pounds less than the amount james recycled. hannah recycled 3 times the amount sofia recycled. if the three rec

ycled a total of 73 pounds, how many pounds did sofia recycle?
Mathematics
2 answers:
jenyasd209 [6]3 years ago
4 0

Answer  

Find out the  how many pounds did sofia recycle .

To prove

Let us assume that the james recycled be = x

As given

sofia recycled 3 pounds less than the amount james recycled.

hannah recycled 3 times the amount sofia recycled.

Sofia recycled be = x - 3

hannah recycled be = 3 × (x - 3)

As given

the three recycled a total of 73 pounds .

Than the equation becomes

x + x - 3 + 3 × (x - 3) = 73

x + x - 3 + 3x - 9 = 73

5x - 12 = 73

5x = 73 + 12

5x = 85

x= \frac{85}{5}

x = 17

Sofia recycled be = x - 3

                            = 17 - 3

                           = 14 pounds

Therefore 14 pounds sofia recycled .



Molodets [167]3 years ago
4 0

Let the amount James recycled be x.

Sofia recycled 3 pounds less than the amount James recycled.

Therefore, the amount Sofia recycled is x - 3.

Hannah recycled 3 times the amount Sofia recycled.

Therefore, the amount Hannah recycled = 3(x - 3).

The three recycled a total of 73 pounds.

Therefore, x + (x - 3) + 3(x - 3) = 73

x + x - 3 + 3x - 9 = 73

5x - 12 = 73

5x = 73 + 12

5x = 85

Divide both sides by 5.

x = 17

Number of pounds that Sofia recycled = x - 3 = 17 - 3 = 14.

Hence, Sofia recycled 14 pounds.

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An engineer is designing a large steel pad to be installed on the deck of an aircraft carrier. Its total volume will be 18 yd^3.
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The density of the sample material, ρ = m₂/V₂

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Therefore, the density of the material of the pad, ρ = 225 lbs/yd³

The mass of the steel  pad, m₁ = ρ × V₁

∴ The mass of the steel  pad, m₁ = 225 lbs/yd³ × 18 yd³ = 4,050 lbs

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6 0
3 years ago
The hypotenuse of a right triangle is 37 units long. Find the other two sides if the perimeter of the triangle is 84 units. Sepa
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Answer:

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Then the b values of this quadratic in b are

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             2

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Check:  Is 12^2 + 35^2 = 37^2 true?  Is 144 + 1225 = 1369?  YES

The lengths of the legs are 12 and 35 units.

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