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n200080 [17]
4 years ago
9

They ratio of pencils to erasers is 4:1 if their are 20 pencils how many erasers are there

Mathematics
1 answer:
velikii [3]4 years ago
8 0
Let x be the number of erasers
4 = 20
1 = x

4x = 20

x = 5
 therefore there are 5 number of erasers 
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A clothing company sells slacks that are either blue or gray and pleated or non-pleated. Last month, the company sold 5 times as
qwelly [4]

Answer:

138 pairs

Step-by-step explanation:

The number of blue pleated slacks is 5 times the number of gray pleated slacks, so:

blue\ pleated = 5 * gray\ pleated (eq1)

The number of gray non-pleated is twice the number of blue non-pleated slacks, so:

blue\ nonpleated = 2 * gray\ nonpleated (eq2)

The total number of blue slacks is 333, and the total number of gray slacks is 225, so we have that:

blue\ pleated + blue\ nonpleated = 333 (eq3)

gray\ pleated + gray\ nonpleated = 225 (eq4)

If we add (eq1) and (eq2), we have:

blue\ pleated + blue\ nonpleated = 5*gray\ pleated + 2*gray\ nonpleated (eq5)

Using (eq3) and (eq4) in (eq5), we have:

333 = 2*225 + 3*gray\ pleated

gray\ pleated = 117/3 = 39

From (eq1), we have:

blue\ pleated = 5*39 = 195

From (eq3), we have:

blue\ nonpleated = 333 - 195 = 138

3 0
3 years ago
Michelle bought five packs of crayons for $16.25 What is the cost of a pack of crayons, in dollars, if all the packs cost the sa
fomenos

Answer:

Michelle bought a pack of crayon for $3.25

Step-by-step explanation:

Number of packs = 5

The cost of a pack of crayons =

(Cost of 5 packs of crayon) / (number of packs of crayons)

The cost of a pack of crayons = ($16.25 ) /  5

The cost of a pack of crayons = $3.25

3 0
3 years ago
​ 6 38/45 + 2 5/9 ​<br><br> Enter your answer in the box as a mixed number in simplest form.
Paul [167]

Answer:

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Step-by-step explanation:

6 38/45 + 2 5/9 ​

6 38/45 + 2 25/45 = 8 63/45 = 9 18/45 = 9 2/5

4 0
3 years ago
What is the cost of 4 pairs of Nikes if each pair is $365.68 along with 120 peaches that each cost $9.00. After he lost 3 pairs
Andreas93 [3]

One cost of a pair of Nike's is $365.68 so to find the cost of 4 pairs, we multiply 365.68 by 4 which gets us $1462.72

And he is fat

3 0
3 years ago
Read 2 more answers
PLEASE ANSWER ASAP!!! THANK YOU!!! ONLY 3 QUESTIONS!!
d1i1m1o1n [39]
For the each of them simply substitute for x in each equation to see if you get the corresponding y , it doesnt really get any more straightforward than this

4 0
3 years ago
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