1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kobusy [5.1K]
3 years ago
12

a teacher had 21 red pens. if the ratio of red pens to blue pens owned was 3:1 how many pens did she have in total

Mathematics
1 answer:
Mariulka [41]3 years ago
6 0
If the ratio of red to blue pens is 3:1, we can find the amount of blue pens by multiplying by 1/3, to get 21*1/3=7.  There are 21 red pens and 7 blue pens, so there are 21+7=28 pens total.
You might be interested in
Joyce paid $50 for an item at the store that was 45 percent of the original price. What was the original price?
soldi70 [24.7K]

Answer:

$69 is the original price

Step-by-step explanation:

Look aboveee

8 0
3 years ago
Someone do this worksheet I’ll give u brainlist and 20 points(SHOW ALL WORK) on a piece of paper!!!
zloy xaker [14]

Answer:

your question is not clear

3 0
3 years ago
An office supply company is shipping a case of wooden pencils to a store. There are 64 boxes of pencils in a case. If each box o
I am Lyosha [343]
The wooden pencils weigh 10 pounds all together.
3 0
3 years ago
Read 2 more answers
Find the value of x and m∠HKL.
frosja888 [35]

Answer:

x = 25 degrees   ∠HKL = 102 degrees

Step-by-step explanation:

The whole thing equals 180, since it is a straight angle

The value of HKL is 180 - 78 = 102

So that means 4x + 2 = 102

Subtract 2 from both sides:

4x = 100

Divide both sides by 4:

x = 25

5 0
3 years ago
I need answer how to do number 3
Olegator [25]
You know that you need two already to make one hexagon. So, if you multiply, or add two four times, 2+2+2+2, you would get eight.
3 0
3 years ago
Read 2 more answers
Other questions:
  • The two way table represents data from a survey asking schoolchildren whether
    9·1 answer
  • At the top of a roller coaster hill you are 210 feet above ground. At the bottom of the hill you are 15 feet above ground. Write
    9·1 answer
  • 1550 were sold in a month if 30% of the pies were banana cream how many bananas cream pies were sold
    14·1 answer
  • Simply 2p(p+2)-3p(2p-3) =
    8·1 answer
  • PLEASE HELPWhich line has an equation of Y-5X+4 in slope-intercept form?
    11·1 answer
  • How do the coordinates of a point compare with the coordinates of its reflection across the x-axis?
    7·1 answer
  • What is 5.985 rounded to the nearest gram a.k.a just rounded?
    10·1 answer
  • Problem 4<br> 9x + 27 y = 45<br> The slope of the equation is..
    12·1 answer
  • Find the interest earned on the account<br><br>$970 at 4 1/4% simple interest for 2 years​
    7·1 answer
  • Please help me answer this :) and explain how you got your answer ! ( will give brainslt )
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!