3 years ago

60 is 15% of what number?

Mathematics

2 answers:

Margaret [11]3 years ago

6 0

You multiply .15 times 60 and you get 9 i believe

tiny-mole [99]3 years ago

5 0

The answer is 9 because you multiply 60 x 15 = 900%100

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2/3y=27 how do i figure out what 2/3y=27 is?

saveliy_v [14]

Answer:

y=40.5

Step-by-step explanation:

you need to get y out of a fraction, to do so multiply by the denominator on both sides

3(2/3y) = 3(27)

then divide to solve for y

2y = 81

y=40.5

8 0

3 years ago

Find x proportions with similar triangles.

Westkost [7]

Answer:

(this is just an approximation due to the left triangle)

4 0

2 years ago

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The base of a triangle is nine centimeters longer than the perpendicular height. If the area of the triangle is 180 square centi

Rom4ik [11]

Answer:

The base is 24 cm long.

Step-by-step explanation:

Equations

Let's call

b= base of the triangle

h=height of the triangle

The base is 9 cm longer than the height, thus:

b = h + 9

The area of the triangle is:

$\displaystyle A=\frac{bh}{2}$

$\displaystyle A=\frac{(h+9)h}{2}$

And its value is 180:

$\displaystyle \frac{(h+9)h}{2}=180$

Multiplying by 2:

$(h+9)h=360$

Operating:

$h^2+9h-360=0$

Factoring:

$(h-15)(h+24)=0$

The only valid positive solution is:

h = 15 cm

And b = h + 9 = 24

b = 24 cm

The base is 24 cm long.

7 0

3 years ago

Deprina buys a large cup of coffee for $4.70 on her way to work everyday. If there are 24 workdays in the month, how much does D

Allisa [31]

She will spend 112.8
24 times 4.70 equals 112.8

8 0

3 years ago

What is the square root of 1000/100000

Mrac [35]

Remember that $\sqrt{\frac{x}{y} }= \frac{ \sqrt{x} }{ \sqrt{y} }$ so
$\sqrt{\frac{1000}{100000} }= \frac{ \sqrt{1000} }{ \sqrt{100000} }$
find the individual square roots
$\frac{ \sqrt{1000} }{ \sqrt{100000} }$ = $\frac{ 10\sqrt{10} }{ 100\sqrt{10} } = \frac{10}{100} times \frac{ \sqrt{10} }{ \sqrt{10} } = \frac{10}{100} times 1= \frac{1}{10}$

answer is 1/10

7 0

3 years ago

Read 2 more answers