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3 years ago

Plz help me First right is brainliest

Mathematics

2 answers:

AysviL [449]3 years ago

6 0

Answer:

20 are cows 10 chickens 20 times 4 is 80 10 times 2 equals 20 80+20=100

Step-by-step explanation:

11Alexandr11 [23.1K]3 years ago

5 0

Answer:

I got 15×4=60 15×2=30 and add them together and you get 90 in sorry it's not 100 but its the closest number I got which is 15 cows × 4 legs and 15 chickens × 2 legs

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Read 2 more answers

A number is selected randomly from the integer from 10to30 what is the probability of picking a multiple of 4or5

arlik [135]

Answer:

$\frac{3}{7}$

Step-by-step explanation:

Start by finding how many integers there are from 10-30...

30-10+1=20+1=21

Note we have to add 1 since it is inclusive.

Now, let's find how many multiples of 4 or 5 there are from 10-30...

4*3=12

4*4=16

4*5=20

4*6=24

4*7=28

5*2=10

5*3=15

5*4=20

5*5=25

5*6=30

5+5-1=9

Note we have to subtract 1 since 20 is counted twice.

The probability would be...

$\frac{Multiples\ of\ four\ and\ five\ from\ 10-30}{Amount\ of\ integers\ between\ 10-30}=\frac{9}{21}=\frac{3}{7}$

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2 years ago