Ben can do 50 sit-ups in 3 minutes. At that rate, how many sit-ups can he do in 12 minutes?

Mathematics

2 answers:

Stels [109]4 years ago

5 0

Ben can do 200 sit-ups in 12 minutes.

Pepsi [2]4 years ago

3 0

The best way to do this is to set up a proportion

50 x
---- = ----
3 12

then cross multiply and divide ( 50 times 12) / 3= 200

he can do 200 situps in 12 minutes

You might be interested in

What is 3/4 simplified?

Tatiana [17]

You can't simplify it but you can divide it like
3/4=.75

7 0

4 years ago

Select the correct answer from each drop-down menu. The first quartile of the data set represented by the box plot is . The medi

atroni [7]

Answer:

The first quartile of the data set represented by the box plot is 12

The median of the data set is 16

Step-by-step explanation:

The computation is shown below:

Quartile means the third digit form the starting

While on the other hand the median represent the mid value of the data set that is shown in the inner side of the box plot as on the vertical line

So, the median of the data set is 16

The same is to be considered

Kindly find the attachment below:

6 0

3 years ago

3/x+2 = 2/x−1 pleasee help

olga_2 [115]

So you have:
$\frac{3}{x} + 2 = \frac{2}{x} - 1
$

1) Start off by multiplying both sides by x to simplify the problem:
$\frac{3}{x} + 2 = \frac{2}{x} - 1 \\
x(\frac{3}{x} + 2) = (\frac{2}{x} - 1)x\\
3 + 2x = 2 - x
$

2) Now isolate the x by moving all terms with x onto one side and all other terms onto the other side:
$3 + 2x = 2 - x\\
3x = -1$

3) Finally, divide by 3 on both sides to find the value of x:
$3x = -1\\
x = \frac{-1}{3}$

------

Answer: x = $\frac{-1}{3}$