Ask question

Ask question

All categories

3 years ago

12

A teacher had 21 red pens. If the ratio of red pens to blue pens she owned was 3:1, how many pens did she have total? (just need

work I have all answers just lost work please help this is due on fri.)

1 answer:

Ksivusya [100]3 years ago

7 0

Ok so you do 3x7= 21 which you already know. So then you do 1x7=7. Last, you just add 21+7=28 pens in total

You might be interested in

Simplify 7 to the power of 8 x 7 to the power of 3 x 7 to the power of 4 divide 7 to the power of 9 x 7 to the power of 5

Lemur [1.5K]

You can get the app Air Math I have the app and it helps a lot

7 0

2 years ago

How many 3/5 are in 1/3

Alenkinab [10]

Answer:

4/15

Step-by-step explanation:

6 0

3 years ago

Question is in the pic.

Andrews [41]

Answer is C as all other choices are even numbers therefore make the equation non-integer.

5 0

2 years ago

Read 2 more answers

The sum of 13 divided by a number and that number divided by 13

7nadin3 [17]

Sum means add

the number is x

13 divided by a number is 13/x
the number divided by the number is x/13

so
$\frac{13}{x}+\frac{x}{13}$
also can be simplified to
$\frac{169}{13x}+\frac{x^2}{13x}$ or
$\frac{x62+169}{13x}$

translated it is $\frac{13}{x}+\frac{x}{13}$ where x is the number

5 0

3 years ago

Is .3333333333333 a rational number??

natali 33 [55]

Answer: No

Step-by-step explanation: Because it is.

8 0

3 years ago

Read 2 more answers