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Debora [2.8K]
3 years ago
11

How do you explain mental math to multiple two numbers

Mathematics
1 answer:
Fantom [35]3 years ago
7 0
When multiplying two numbers, a person can mentally add one of those numbers the other number amount of times.
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What is the least common denominator of 5/6 and 3/4?
ololo11 [35]
This lcd is also twelve
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I need answer how to do number 3
Olegator [25]
You know that you need two already to make one hexagon. So, if you multiply, or add two four times, 2+2+2+2, you would get eight.
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-15=2t-11 does any one know it please
Murljashka [212]

Add 11 to both sides:

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A shelter in the city house birds and dogs . There are 25% more dogs then birds. If there are 50 birds how many dogs are there?
AfilCa [17]

Answer:

They have 83 dogs and 50 birds.

There are 133 animals in total in the shelter.

Step-by-step explanation:

So let's call the dogs D and the birds B.

D = 25% + B

What ever the amount of animals, the total for D must always be 25% more than B.

To get 100% of the animals, B must equal 37.5% and D must equal 62.5%.

The way I worked this out was:

100% - 25%= 75%

75% divided by 2= 37.5%

37.5% + 25%= 62.5%

And just to check

37.5% + 62.5% = 100%

So to work out 100%:

37.5% = 50

divide both by 37.5 to get 1%

1% = 1.333333

time both by 62.5 to get 62.5%

62.5% = 83.333313

We'll round that answer because I'm pretty sure they don't have a .333313th of a dog.

So D = 62.5% = 83

They have 83 dogs and 50 birds.

Phew! That was the hard part. Now onto something wayyy easier.

To get the total number of animals in the shelter we just do 83 + 50, which is 133.

There are 133 animals in total in the shelter.

Hope this helps you :)

7 0
3 years ago
⚠️I MARK BRAINLIST PIC INCLUDED ⚠️What is the initial value of the sequence?
densk [106]

Answer:

2

Step-by-step explanation:

8 0
3 years ago
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