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d1i1m1o1n [39]
3 years ago
14

In a jar, 25% of the marbles are red. If there are 45 red marbles in the jar, how many marbles are in the jar altogether?

Mathematics
2 answers:
Oxana [17]3 years ago
8 0

Answer:

There are 180 marbles in the jar

Step-by-step explanation:

Let x = number of marbles in the jar

x * 25% = number of red marbles

x * .25 = 45

Divide each side by .25

x *.25/.25 = 45/.25

x =180

There are 180 marbles in the jar

salantis [7]3 years ago
8 0

Answer:

Answer: 180 marbles

Step-by-step explanation:

25 percent can be converted to 1/4 and 4 x 1/4 = 1 and/or whole

Now since 45 marbles = 25 percent/1 /4 of WHAT is in the jar now we can multiple 45 x 4 (times 4 to make the 1/4 into a whole) which gives up 180 marbles total.

Hopefully I explained it in a way you can understand

Hope this helped

Step-by-step explanation:

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