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vodka [1.7K]
2 years ago
15

Sarah got 90% on her math test. If the test was worth 180 points, how many points did Sarah get?

Mathematics
2 answers:
Ivanshal [37]2 years ago
4 0
It would be: 180 * 90/100
= 180 * 0.90 = 162

In short, Your Answer would be 162

Hope this helps!
UkoKoshka [18]2 years ago
3 0

Answer:

162 points.

Step-by-step explanation:

Given,

The test was worth 180 points,

That is, 100 % of the test = 180 points,

⇒ 1 % of the test = \frac{180}{100} point,

Since, the percentage in maths is 90 %,

Also, 90% of the test = 90\times \frac{180}{100} = \frac{16200}{100}=162\text{ points}

Hence, the points in maths is 162.

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. What is the total cost of 6 books at N8.50k each?​
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51

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2 years ago
A board of length 7 divided by the quantity x minus 2 end of quantity meters was cut into two pieces. If one piece is 3 divided
bulgar [2K]

Answer:

Length of other board =\frac{4x+20}{x^{2} -4} metres

Step-by-step explanation:

Given: Length of board = \frac{7}{x-2} metres

Length of board was divided into two.

Length of one piece = \frac{3}{x+2} metres

Let l = length of the other board

Length of the other board = Length of board - Length of one piece

So, l=\frac{7}{x-2}-\frac{3}{x+2}

l=\frac{7(x+2)-3(x-2)}{(x-2)(x+2)} \\\\l=\frac{7x+14-3x+6}{x^{2} -4} \\\\l=\frac{4x+20}{x^{2} -4}

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4 0
3 years ago
What is the equation for the translation of x2 + y2 = 16 seven units to the right and five units up?
asambeis [7]

Answer:

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Step-by-step explanation:

The given circle has equation

\sf \: x^2+y^2=16x

The equation of a circle with center (h,k) and radius r units is

\sf(x-h)^2+(y-k)^2=r^2(x−h)

\sf(x-7)^2+(y-5)^2=4^2(x−7)

\sf(x-7)^2+(y-5)^2=16(x−7)

<h2>❖ Tip❖ :- </h2>

This is the equation that has its center at the origin with radius 4 units.

When this circle is translated seven units to the right and five units up, then the center of the circle will now be at (7,5).

6 0
1 year ago
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