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ipn [44]
3 years ago
6

Justin worked 2 2/3 hours on thursday and 6 3/4 hours on friday. how many hours combined

Mathematics
1 answer:
yaroslaw [1]3 years ago
7 0

Answer:

9 5/12

Step-by-step explanation:

2 2/3 + 6 3/4

find a  common denomenator. For 3 and 4, it would be 12.

2 8/12 + 6 9/12

add

8 17/12

12 goes into 17 one time, with 5 left over

9 5/12

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The length of a rectangle is twice its width. if the perimeter of the rectangle is 36 cm , find its area.
Brut [27]
L = Length
W = Width

L x W = area
Length = 2w

Lets find the width by solving for w.
2w + w = 36 
3w = 36
3w/3 = 36 / 3 
w = 12

So
L = 2 x 12 = 24
W = 12
L X W = area
24 x 12 = 288 cm^2

6 0
3 years ago
The average human heart beats 75 times every minute. The average horse has a heartbeat of 40 times every minute. How many times
Effectus [21]

Answer:

4500

Step-by-step explanation:

multiply the amount of times the heart beats every minute and multiply it by how many minutes which is 60 so 75 times 60 is 4500

6 0
3 years ago
Is 6^-2 positive or negative? Explain.​
Gnoma [55]

Answer:

It's positive when you have 6^-2 it's the same as having (\frac{1}{6})^{2} \\. So 6^-2 it's 1/36.

Step-by-step explanation:

7 0
3 years ago
If 9^(2x-1)=81^(x-2)/3^x find x​
notsponge [240]

The answer is to your question is x=-6

8 0
2 years ago
Can someone help please?
vladimir2022 [97]
X=-4             you have to substitue first so you put the equation where the X is and then you would distribute and then add the numbers that have the common exponent                                                   
8 0
3 years ago
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