All categories

2 years ago

60 is x% of 12. Find the value of x.

Mathematics

1 answer:

Liula [17]2 years ago

4 0

Answer:

Step-by-step explanation:

We can set up a percentage proportion to find the value of x.

$\frac{12}{x} = \frac{60}{100}$

Now we cross multiply:

$100\cdot12=1200\\\\1200\div60=20$

Hope this helped!

You might be interested in

Answers <br> |x-3|<br> -|x+3|<br> -|x-3|<br> |x|+3

Jobisdone [24]

-|x+3|

its a positive 3 because you move it the opposite way im pretty sure
and it’s negative because it’s pointed down

4 0

2 years ago

Read 2 more answers

Sari has 3 times as many pencil erasers as Sam. Together, they have 28 erasers. How many erasers does Sari have?

BartSMP [9]

Let

x--------> amount of erasers that Sari has

y--------> amount of erasers that Sam has

we know that

$x=3y$ -------> equation $1$

$x+y=28$ -----> equation $2$

Substitute equation $1$ in equation $2$

$[3y]+y=28\\ 4y=28\\ y=28/4\\ y=7$

find the value of x

$x=3y\\ x=3*7\\ x=21$

therefore

the answer is

Sari has $21$ erasers

8 0

2 years ago

Read 2 more answers

What is 290 million in scientific notation?

Vilka [71]

290 million = 290,000,000

scientific notation would be 2.9 x 10^8

the 8 comes from the number of spaces you need to move the decimal point to the left to get 2.9

8 0

2 years ago

Read 2 more answers

Number 3: (look at picture) 10 points ALSO SHOUTOUT TO PEOPLE ANSWERING THESE QUESTION I AM JUST LIKE EXTREMLY DUMB

Alja [10]

Answer:

A: -720

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

8. The trapezoids are similar. The area of the smaller trapezoid is 131 m2. Find the area of the larger trapezoid to the nearest

kolbaska11 [484]

Answer:

$3,726\ m^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is equal to the scale factor

Let

z----> the scale factor

x----> corresponding side of the larger trapezoid

y----> corresponding side of the smaller trapezoid

$z=\frac{x}{y}$

we have

$x=64\ m$

$y=12\ m$

substitute

$z=\frac{64}{12}$

step 2

Find the area of the larger trapezoid

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z----> the scale factor

x----> area of the larger trapezoid

y----> area of the smaller trapezoid

$z^{2}=\frac{x}{y}$

we have

$z=\frac{64}{12}$

$y=131\ m^{2}$

substitute

$(\frac{64}{12})^{2}=\frac{x}{131}$

$x=(\frac{4,096}{144})(131)$

$x=3,726\ m^{2}$

5 0

3 years ago