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ELEN [110]
3 years ago
5

A student got 78 marks out of a possible 120. Express the students mark as a percentage

Mathematics
2 answers:
statuscvo [17]3 years ago
8 0

Answer:

65%

Step-by-step explanation:

78/120=13/20

13/20=65/100

65/100=65%

sasho [114]3 years ago
5 0
The answer is 65%


(78/120)*100

=65%
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Step-by-step explanation:

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3 years ago
A hat is on sale for h dollars. The regular price is 7 times as much. Charlie has enough money to buy two hats at the regular pr
Nostrana [21]

Answer:

Charlie can buy 14 hats at the sale price

Step-by-step explanation:

Let

h ----> the sale price of the hat

x ---> the regular price of the hat

we know that

x=7h ----> equation A

so

Two hats at the regular price  is equal to multiply 2 by x

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3 years ago
Your bedroom ceiling is 10 feet high and is 2/3 as high as the living room ceiling.
zaharov [31]
Let me do the work right now, then I’ll let you know!!
6 0
3 years ago
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Solve for X and Y: <br> Y=2+7x and -2x+6y=-28
Furkat [3]

Answer:

x=-1 and y=-5

Step-by-step explanation:

ሰላም!

Given expressions let them given as two equations

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Thus, substitute y=2+7x into equation (2)

- 2x + 6(2 + 7x) =  - 28 \\

simplify it

- 2x + 12 + 42x =  - 28 \\ 40x + 12 =  - 28

subtract 12 from both sides

40x + 12 - 12 =  - 28 - 12 \\ 40x =  - 40

divide both sides by 40

\frac{40x}{40}  =  \frac{ - 40}{40} \\ x =  - 1

Therefore, as we get the value of x=-1 substitute it to equation (1) and solve for variable y

y = 2 + 7x \\ y = 2 + 7( -1 ) \\ y = 2 - 7 \\ y =  - 5

To be more sure make a cross check on both of the two expressions

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-5=2+7(-1)

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Hope it helps!

6 0
1 year ago
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masha68 [24]

Answer:

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Step-by-step explanation:

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