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Romashka-Z-Leto [24]
2 years ago
13

Help me oo000-00000of

Mathematics
1 answer:
lisabon 2012 [21]2 years ago
6 0

Answer:

x = 15

y = 5

Step-by-step explanation:

x = 15

y = 5

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Estimate the value of 102. ÷ 4.7
Maksim231197 [3]

Answer:

21.7

Step-by-step explanation:

divide

4 0
2 years ago
H/52 = 88/44 what does H=
loris [4]
I believe the answer is 104.
7 0
3 years ago
5x-6y=3 <br> 7y=2x+8 <br> Help me out please
zaharov [31]

Answer:

A) 5x-6y=3

B) 7y=2x+8

B) -2x + 7y = 8  then multiplying "B" by 2.5

B) -5x +17.5y = 20  then adding this to A

A) 5x -6y = 3

11.5y = 23

y = 2

x = 3

Step-by-step explanation:

3 0
3 years ago
A teacher has 3 hours to grade all the papers submitted by the 35 students in her class. She gets through the first 5 papers in
Andreyy89
So, she has 3hrs to grade all papers, for 35 students.. alrite.

the first 5, she does them in 30minutes.. what's the speed rate? well, 5/30 or 1/6

now, she has still 2 hours and a half, or 150 minutes, to do the remaining 30 papers... she has to work at a rate of 30/150 then... which is 1/5 simplified.

now if we take 1/6 as the 100%, what is 1/5 in percentage then?

\bf \begin{array}{ccllll}&#10;rate&\%\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;\frac{1}{6}&100\\\\&#10;\frac{1}{5}&x&#10;\end{array}\implies \cfrac{\frac{1}{6}}{\frac{1}{5}}=\cfrac{100}{x}\implies \cfrac{1}{6}\cdot \cfrac{5}{1}=\cfrac{100}{x}\implies \cfrac{5}{6}=\cfrac{100}{x}&#10;\\\\\\&#10;x=\cfrac{6\cdot 100}{5}\implies x=120

so 1/5 is 120% in relation to 1/6... meaning the rate of 1/5 she needs to move through, namely 1 paper every 5 minutes, is 20% faster than 1/6.
8 0
3 years ago
Read 2 more answers
3/4 and 16/20 equivalent
Sergeeva-Olga [200]

1.55

3/4 and 16/20 equivalent = 3/4 + 16/20 = (?)

\boxed{3/4+16/20=1.55}

7 0
3 years ago
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