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Elden [556K]
3 years ago
13

Having math problem I can’t solve. Blank=6 + (21 divided by 3)

Mathematics
2 answers:
Citrus2011 [14]3 years ago
7 0
I think 13 is the answer
erastovalidia [21]3 years ago
5 0

Answer:

13

Step-by-step explanation:

x=6+(21/3)

x=6+(7)

x=13

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There are a total of 100 balloons. If the ratio of yellow balloons to blue balloons is 8 to 12, how many of them are yellow
Ivanshal [37]
If you have 8 yellow balloons for every 12 blue balloons, then if you have 20 balloons in total, 8 out of 20 of those balloons will be yellow. Then you can set up this ratio:

\frac{8yellow}{20total} = \frac{Xyellow}{100total}

Then, you can use either cross multiplication or multiply the numerator and denominator by the same number to help solve for x. Personally, I prefer cross multiplication, so that's what I'll show you here:

\frac{8yellow}{20total} = \frac{Xyellow}{100total} \\ 8yellow*100total=20total*Xyellow

Finally, solve for x:

8yellow*100total=20total*Xyellow \\ 8*100=20*x \\ 800=20x \\ 800/20=20x/20 \\ x=40yellow

If you had 100 balloons, you will have 40 yellow balloons.

Hope this helps!!
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3 years ago
Express 25 minutes as a fraction of 2 hours in its simplest form
Phoenix [80]
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jenyasd209 [6]
Remember, the length of the longest sid must be less than the sum of the other 2 sidess

33 is longest
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3 years ago
A bus travels at a speed of 80km per hour . what is the distance it travels by 15 mins.
Tatiana [17]

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Step-by-step explanation:

6 0
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What is the cubed root of 275÷7
almond37 [142]

Step-by-step explanation:

It's an irrational number.

\sqrt[3]{275:7}=\sqrt[3]{\dfrac{275}{7}}=\dfrac{\sqrt[3]{275}}{\sqrt[3]{7}}=\dfrac{\sqrt[3]{275}\cdot\sqrt[3]{7^2}}{\sqrt[3]{7}\cdot\sqrt[3]{7^2}}=\dfrac{\sqrt[3]{275\cdot49}}{\sqrt[3]{7\cdot7^2}}\\\\=\dfrac{\sqrt[3]{13475}}{\sqrt[3]{7^3}}=\dfrac{\sqrt[3]{13475}}{7}=\dfrac{1}{7}\sqrt[3]{13475}

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3 years ago
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