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postnew [5]
3 years ago
5

File attached Please help

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0

Answer:

the answer is C, 369

Step-by-step explanation:

1. divide 800 by 40 which will give you 20

2. then multiply 18 by 20

3. answer is 360

the reason I did this was because if you had multiplied math, physics and chemistry by 20 it would have given you the total of 800 trials

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the 3 sides of triangle are n, 4n + 1 , 5n- 8. if the perimeter of the triangle is 93 cm, what is the length of each side?​
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Answer:

10, 41, 42

Step-by-step explanation:

(n)+(4n+1)+(5n-8)=93 because triangle perimeter

10n-7=93

10n=100

n=10

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2 years ago
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Y 65° 25 <br>can someone solve this ? ​
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3 years ago
A recipe for cookies calls for 3 1/4 cups of sugar. Amy has already put in 3 1/9 cups. How many more cups does she need to put i
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So 3 and 1/4 is equal to 4/4+4/4+4/4+1/4=13/4

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28/9+x=13/4
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so we convert so that the bottom numbers are the same

a short cut is 3 and 1/4+x=3 and 1/9 
3 1/9+x=3 1/4
subtract 3 from both sides
1/9+x=1/4
subtract 1/4 from both sides
x=1/4-1/9
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1/4=9/36
x=9/36-4/36
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3 years ago
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