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fgiga [73]
3 years ago
12

Help please!!!!!!!!!!!!!!!

Mathematics
1 answer:
drek231 [11]3 years ago
4 0
The original side length was 12m therefore the perimeter was 36m. 12/4 is 3 so the perimeter is now 9, and the difference between them is 27.
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Mailyn loves cookies. She can eat 32 in an hour. Her brother Juan, however, needs 3 hours to eat the same amount of cookies. How
bezimeni [28]

we know that

1) Mailyn can eat 32 cookies in an hour

1 hour  is equal to 60 minutes

<u>Find how cookies eats Mailyn in one minute</u>

by proportion

\frac{32}{60} \frac{cookies}{minutes}= \frac{x}{1} \frac{cookie}{minutes} \\\\ x=32/60\\x=0.53 \ cookies

2) Juan needs 3 hours to eat 32 cookies

<u>Find how cookies eats Juan in one minute</u>

by proportion

\frac{32}{180} \frac{cookies}{minutes}= \frac{x}{1} \frac{cookie}{minutes} \\\\x=32/180 \\x=0.18\ cookies

<u>3) Find how long will it take them to eat 40 cookies together</u>

we know that

Maylin and Juan eats in one minute together ---------> (0.53+0.18)=0.71 cookies

so

by proportion

\frac{0.71}{1} \frac{cookies}{minutes}= \frac{40}{x} \frac{cookie}{minutes} \\\\0.71*x=40\\x=56.34 \ minutes

therefore

<u>the answer is</u>

56.34\ minutes

4 0
3 years ago
yo can someone please help me out. school is rlly stressful and i just need help. the question is “find the perimeter and area o
Bess [88]
These will be the answers

6 0
3 years ago
Its easy pls help{6x+4y=14}{9x+6y=c}which value of c represents a system with infinitely many solutions?
natka813 [3]

The system of equations 6x+4y=14 and 9x+6y=c are linear equations

The value of c that makes the system have infinitely many solutions is 21

<h3>How to determine the value of c?</h3>

The system of equations are given as:

6x+4y=14

9x+6y=c

Divide through the second equation by 3

3x + 2y = c/3

Multiply through by 2

6x + 4y = 2c/3

Subtract the first equation from the above equation

6x - 6x + 4y - 4y = 2c/3 - 14

Evaluate the differences

2c/3 - 14 = 0

Add 14 to both sides

2c/3 = 14

Multiply by 3/2

c = 21

Hence, the value of c that makes the system have infinitely many solutions is 21

Read more about system of equations at:

brainly.com/question/14323743

3 0
3 years ago
CAN SOMEONE PLEASE HELP ME WITH THESE PEOPLE​
vazorg [7]

Inverse of f(x)=x+2 is f^{-1}(x)=x-2 because

f(x)=x+2\Rightarrow x=f^{-1}(x)+2\Rightarrow\boxed{f^{-1}(x)=x-2}

Now f^{-1}(-5)=-5-2=\boxed{-7}.

Hope this helps.

4 0
3 years ago
Which number represents the sum of -8 and -i?<br> 8i<br> -8i<br> -8-i<br> -8 + i
RideAnS [48]
The correct answer would be -8-i! :)
6 0
3 years ago
Read 2 more answers
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