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3 years ago

Three times a number, X, increased by four is equal to five times the number, x. Which equation can be used to solve for x

Mathematics

1 answer:

WITCHER [35]3 years ago

4 0

Answer:

Step-by-step explanation:

Three times a number x : 3x

Three times a number x increase by 4: 3x +4

Five times the number x: 5x

5x = 3x +4

Subtract 3x from both the sides.

5x - 3x = 3x +4 - 3x

2x = 4

Divide both sides by 2

2x/2 = 4/2

x=2

The number is 2

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3 years ago

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Use scientific notation to estimate the number of inches in 1,225 miles. Include all calculations in your final answer.

valentinak56 [21]

Answer:

1,225 miles = 77616000 inches

Step-by-step explanation:

It is asked to find the number of inches in 1,225 miles

Given

1 inch ≈ 1.578 × 10^-5 miles

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Therefore, 1,225 miles = 1225 x 63360 inches

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4 years ago

The hypotenuse of a right triangle measures 10 inches, and the side opposite to ∠θ, one of the non-right angles, is 5 inches lon

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You can use trig to find that
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7 0

3 years ago

There are only green yellow blue cubes in a bag

GREYUIT [131]

Answer:

1 ÷ 11

Step-by-step explanation:

The computation is shown below:

let us assume the yellow cubes be x

So, blue cubes be 2x

And, green cubes be 2x (4) 8x

Now the ratio is

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x:2x:8x

1:2:8

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3 years ago

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Anna71 [15]

Answer:

Step-by-step explanation:

44+x=90

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