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3 years ago

Three fifths of a number, plus 8, is equal to the number.What is the number?

Mathematics

1 answer:

Luden [163]3 years ago

7 0

Answer:

The number is 20.

Step-by-step explanation:

To solve this, first take the words and turn into an equation.

3/5x + 8 = x

Now we can solve for x using the order of operations

3/5x + 8 = x

8 = 2/5x

20 = x

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igor_vitrenko [27]

Answer:

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Step-by-step explanation:

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3 years ago

the volume of a cone is 120 cubic centimeters. the height of the cone is 4.5 centimeters. determine the radius of a cone

kolbaska11 [484]

<h3> given:</h3>

$v = 120 \: {cm}^{3}$

$h = 4.5 \: cm$

the radius of the cone.

<h3>solution:</h3>

$r = \sqrt{3 \frac{v}{\pi \: h} }$

$r = \sqrt{3 \times \frac{120}{\pi \times 4.5} }$

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2 years ago

Edith needs 65 yards of yarn to knit a baby hat and 580 yards of yarn to knit a baby blanket. A ball of yarn contains 420 feet o

umka2103 [35]

Answer:

Step-by-step explanation:

There are 3 feet in a yard, so 420 feet is 420/3 = 140 yards.

The total number of yards Edith needs is ...

65 yd + 580 yd = 645 yd

So, the total number of balls of yarn Edith needs is ...

(645 yd)/(140 yd/ball) ≈ 4.61 balls

Edith needs to buy 5 balls of yarn to make her projects.

3 0

3 years ago

1. Triangle ABC is similar to triangle DEF.

nignag [31]

Answer:

Step-by-step explanation:

In similar triangles corresponding angles have the same measure.

7 0

3 years ago

1.7 6/5 2.4 25/25 3.28/3 what is the lowest term?

liberstina [14]

Answer:

$\frac{28}{3}$

Step-by-step explanation:

number 1 equals 8 1/5

number 2 equals 5

number 3 equals 9 1/3

5 0

2 years ago