3 years ago

What number : Decreased by 40% is 60 ?

Mathematics

2 answers:

Nuetrik [128]3 years ago

3 0

Answer:

100

Step-by-step explanation:

Equation:

.6x=60 because 60 percent of x is 60.

x=100

Check:

100-.4(100)=60

True.

Grace [21]3 years ago

3 0

Answer:

100

Step-by-step explanation:

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Yakvenalex [24]

Answer:

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2 years ago

A candy store called "Sugar" built a giant hollow sugar cube out of wood to hang above the entrance to their store. It took 13.5

Sunny_sXe [5.5K]

Answer:

$\frac{27}{8}m^3$ or $3.375m^3$

Step-by-step explanation:

The formula for volume is Base * Height * Width; and the formula for area is Base * Height.

This problem mentions the structure is a cube and therefore it is assumed that every wall has the same area. Since there are 6 sides to a cube you divide the total amount of ft which make up this cube to know the area to each wall.

$13.5 m/6$ = 2.25 or $\frac{9}{4} m$ per wall

With the area of each wall you can find the base and height:

base * height = area

$b=\sqrt{\frac{9}{4} } = \frac{3}{2}$

base = $\frac{3}{2}$ m

height = $\frac{3}{2}$ m

since: base=height=width, the width also equals $\frac{3}{2}$ m

volume = $(\frac{3}{2})^3$ = $\frac{27}{8}$

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3 years ago

7x-4 (6-x) +12. if x=6

Darina [25.2K]

We just need to substitute in 6 whether we see an x:

(7*6) - 4*(6-6) + 12
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3 years ago

Read 2 more answers

Hannah went swimming after she woke up. It took Hannah 15 minutes to get ready to go swimming. She swam for 30 minutes and then

saul85 [17]

Find the total minutes:

15 + 30 + 25 + 35 = 105 minutes

This is equal to 1 hour and 45 minutes

Subtract 1 hour and 45 minutes from 9:30

She woke up at 7:45 am

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3 years ago

What is the radius of the circle with equation<br> x2 + y2 – 8x + 12y – 5 = 0?

kramer

Answer:

radius: $\sqrt{52}$

Step-by-step explanation:

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3 years ago