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Anna71 [15]
3 years ago
12

2. The perimeter of a rectangle is the sum of

Mathematics
1 answer:
kolbaska11 [484]3 years ago
3 0
The answer is B because u need to multiply and divide
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What is seven less than the product of 3 and a number equals 6
Pie
The number is 2 because it multiply by 2 and 3
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3 years ago
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The population of Columbus, Ohio, in 2014 was about 823,000. The population of the United States was about 319 million in 2014.
lyudmila [28]
388 times larger than Columbus, Ohio.
7 0
4 years ago
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Explain why the equation 5z + 2 = 5z has no solution.
suter [353]
5z + 2 = 5z \\ 5z - 5z = - 2 \\ 0 = - 2

Answer : This is because when 5z minus 5z, it is nullified, with no way to determine the value of z. 5z - 5z = 0
That is why there is no solution for this equation.

Hope this helps. - M
5 0
3 years ago
Divide 28 into 2 groups so the ratio is 3 to 4
emmasim [6.3K]

3     4

3     4

3     4

3     4

Left side gets 12.

Right side gets 16.

12+16=28 in total.

When you're thinking of ratios, you have to think of rounds. Let's say I want to distribute apples... In Round 1, I'm going to give myself 1 apple and give you 2 apples. After Round 1, three apples have been distributed in total. Now, if I repeat the same pattern of distribution 1:2, after Round 2 I should have 2 apples whilst you have 4. After Round 2 a total of 6 apples would have been distributed.If the ratio is 3 to 4 - imagine there are 7 groups total, and one person gets 3 of the 7 and the other person gets 4 of the 7.

____________________________________________
If 28 is divided into 7 groups, each group has 4 cans.

One person gets 3 groups = 4*3 = 12 cans
The other gets 4 groups = 4*4* = 16 cans

This way is easier for me to do, but go with whatever works for you :)
8 0
4 years ago
In a library, the ratio of maths books to science books is 3 : 2 and the ratio of science books to history books is 1 : 3. If th
trapecia [35]

Answer:

60 maths books

Step-by-step explanation:

<u>Let the following be:</u>

  • Maths books = m
  • Science books = s
  • History books = h

<u>And we have ratios and sum:</u>

  • m/s = 3/2
  • s/h = 1/3
  • m+s+h = 220

<u>From the ratios we get:</u>

  • m = 3s/2
  • h= 3s

<u>Considering the above in the sum of books:</u>

  • m+s+h = 220
  • 3s/2 + s + 3s = 220
  • 3s + 2s + 6s = 2*220
  • 11s = 440
  • s = 440/11
  • s = 40

<u>Number of maths books:</u>

  • m = 3s/2 = 3*40/2 = 60
6 0
3 years ago
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