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andrew-mc [135]
3 years ago
5

The ratio of nickles, dimes, and quarters in a jar is 3 : 4 : 7 respectively. If there are total 112 coins in a jar how many of

them are nickles?​
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
8 0
Ratio = 3 : 4 : 7 -> nickels : dimes : quarters
Total = 112 coins

3 + 4 + 7 = 14 coins in the jar to begin with

112 : 14 ratio -> end total : beginning total

Note: ratios can also be expressed as divisions or fractions

So...

112 / 14 = 8

Now you have to multiply each coin in the ratio by 8 to determine how much there are in a total of 112.

Nickel: 3 x 8 = 24
Dime: 4 x 8 = 32
Quarter: 7 x 8 = 56

New ratio of coins in total of 112 is
24 : 32 : 56

You can check my adding them up:

24 + 32 + 56 = 112

The question asks how many nickels would there be if there were a total of 112 coins and we can see in the new ratio that there would be 24 nickels.

Therefore, there is 24 nickels in a jar if there were a total of 112 coins.
jasenka [17]3 years ago
4 0

Step-by-step explanation:

Nickels = 112 * 3 / (3 + 4 + 7) = 24.

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Answer:

-2

Step-by-step explanation:

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3 years ago
Jill And Jamahl are comparing their favorite number.Jill number has a prime factorization of 6 number. Jamahl has a prime factor
tatiyna
To prove that jill is wrong we just need an example of this;


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5953*5981*5987 = 2.13x10^11 (which is obviously a much bigger number)

this is enough to prove that jill is wrong
6 0
3 years ago
A line goes through the origin and the point (6, 14). The point (2, y) is also on the line. Calculate y and justify that your va
guajiro [1.7K]

Answer:

Step-by-step explanation:

The key here is knowing that the equation of the line that passes through these points is same

Thus having (6,14) and (0,0), the slope is as follows;

m = y2-y1/x2-x1 = 0-14/0-6 = -14/-6 = 7/3

Now we can use this slope here to get the value of y in the question

All we need to do is tie write the equation of the line for between the points (6,14) and (2,y)

That would be;

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cross multiply;

-35 = 3(y-14)

-35 = -3y + 42

-3y = -35-42

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y = -77/3

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3 0
3 years ago
consider the following equations: -x-y=1 y=x+3 if the two equations are graphed, at what point do the lines representing the two
Oksana_A [137]

Answer:

(-2, 1)

Step-by-step explanation:

consider the following equations: -x-y=1 y=x+3

For the lines to intersect, the  values must be the same

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y = -x - 1

Equating the y values

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y = -2 + 3

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Hence the required coordinate is (-2, 1)

7 0
3 years ago
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Answer:

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8 0
3 years ago
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