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Sliva [168]
3 years ago
12

Can someone please help I’m trying to get my grades up it’ll be greatly appreciated

Mathematics
1 answer:
Veronika [31]3 years ago
7 0

Answer:

A. 4

B. 8

Step-by-step explanation:

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2/5y+y-4=31 solve for x
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Jose asks his friends to guess the higher of two grades he received on his math tests. He gives them two hints. The difference o
tatyana61 [14]

Answer : 96

x – y = 16 --------> equation 1

1/8 x + 1/2 y = 52

x is the higher grade and y is the lower grade

We solve the first equation for y

x - y = 16

-y = 16 -x ( divide each term by -1)

y = -16 + x

Now substitute y in second equation

1/8 x + 1/2 ( -16 + x ) = 52

1/8x - 8 + 1/2 x = 52

1/8x + 1/2x - 8 = 52

Take common denominator to combine fractions

1/8x + 4/8x -8 = 52

5/8x - 8 = 52

Add 8 on both sides

5/8x = 60

Multiply both sides by 8/5

x = 96

We know x is the higher grade

96 is the higher grade of Jose’s two tests.

8 0
3 years ago
Which equation represents a line parallel to the line shown on the graph? On a coordinate plane, a line goes through (negative 6
ELEN [110]

Answer:

\boxed{ \mathrm{y = \ negative \  3 x + 3}}

Step-by-step explanation:

The coordinates are (-6,0) and (-8,6)

<u><em>Finding slope of the line</em></u>

Slope = \frac{rise}{run} = \frac{y2-y1}{x2-x1}

Slope = \frac{6-0}{-8+6}

Slope =\frac{6}{-2}

Slope = -3

Parallel lines have equal slopes.

So, the line which is parallel to this line is y = negative 3 x + 3

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3 years ago
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Answer:

1/5 is equal to 20% so you multiply 48 by .20 and you get 9.6 and your take 9.6 and add it to 48. your answer will be 57.6

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Studentka2010 [4]

Answer:

115 ÷ 5 = 23

Step-by-step explanation:

Distributive property of division is  a ÷ b = c where c is constant

115 ÷ 5

= 23

8 0
3 years ago
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