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DerKrebs [107]
2 years ago
11

Solve for the unknown in the following diagram. Round the answer to two decimal places.cm​

Mathematics
1 answer:
katen-ka-za [31]2 years ago
7 0

Answer:

Step-by-step explanation:

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If 10 man can work 6hours.How many more men are needed towork in 4 hours​
Lerok [7]

Answer:

5 more men

Step-by-step explanation:

10 men do a job in 6 hours.

To do the job in 2 hours, 1/3 of the time, you need 3 times as many men.

30 men do a job in 2 hours.

To do the job in twice the time, 4 hours, you need half the men.

15 men do a job in 4 hours.

15 men - 10 men = 5 men

You need 5 more men.

4 0
2 years ago
S=<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bn%7D%7B2%7D%20" id="TexFormula1" title=" \frac{n}{2} " alt=" \frac{n}{2} "
dmitriy555 [2]

\bf S=\cfrac{n}{2}(a+I)\implies S=\cfrac{n(a+I)}{2}\implies 2S=n(a+I)\implies \stackrel{\textit{distributing}}{2S=na+nI} \\\\\\ 2S-nI=na\implies \cfrac{2S-nI}{n}=a

8 0
3 years ago
Helppppppppp i m on my test
blondinia [14]
3x+75=180( cause supplementary angles)
-75 -75
3x=105
3x/3= 105/3
x=35

4 0
3 years ago
there are 63 boys in sixth grade. the number of girls in the sixth grade is 56. Shelby says that means the ratio of the number o
Leto [7]

Answer:

Yes, Shelby is correct.

Step-by-step explanation:

Basically, if you divide 63 by 9 you get 7, and if you divide 56 by 7 you get eight, so yah.

8 0
3 years ago
At the science fair, Christine uses 8 fluid ounces of vinegar to make her volcano erupt. How many times can she make her volcano
NemiM [27]

Answer:

1 quart gives 32 ounces. And you already know how many ounce are needed to erupt. So the last step you can figure out easily.

Give brainiest.

4 0
2 years ago
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