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3 years ago

Sophia scored 92 percent in a math test. If the test had 50 questions, how many did she get right?

Mathematics

1 answer:

USPshnik [31]3 years ago

6 0

Answer:

Sophia got 46 questions right.

Step-by-step explanation:

Heres why:

In order to find how much she got right, we put 92% over 100 and make it a fraction so that would be 92/100.

Now, she had 50 questions. So, we will put that over 1. So that would look like this: 50/1.

Finally, we multiply: 92/100 times 50/1.

This equals 4600/100 which equals 46

SO: Sophia got 46 questions right! Hope this helps and plz mark brainliest if you want to! :)

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The length of a rectangle is 12 cm more than its width. Find the

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Dimensions of the rectangle (width and length) are 19 cm and 31 cm respectively.

Step-by-step explanation:

Step 1: Given that the perimeter = 100 cm, let width be x cm and then length = 12 + x.

Perimeter of a rectangle = 2(length + width)

100 = 2(x + 12 + x)

100 = 4x + 24

4x = 100 - 24 = 76

∴ x = 76/4 = 19 cm

∴ Length = 19 + 12 = 31 cm

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What is the slope of the line that passes through the points M(-3,5) and N (1,8)

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Answer:

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Step-by-step explanation:

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3 years ago

A triangle has an area of 38.4 cm2. The

lisov135 [29]

Answer:

6cm

Step-by-step explanation:

$A = \frac{h_b b}{2}$

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3 years ago

If y varies inversely as x and y=3 when x=14, find x when y=6

alukav5142 [94]

X=7 What you can do is look at the first two values given, and make them x1 and y1. Then your next value here is y2.

So x1 is 14, and y1 is 3. y2 becomes 6. X2 is unknown.

Then make the formula: x1/y2 is equal to x2/y1
(You are setting two fractions equal to each other)

That makes 14/6=X/3. When we cross multiply, we find that x=7.

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3 years ago

Which represents the solution(s) of the graphed system of equations, y = x2 + x – 2 and y = 2x – 2

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Answer:

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Step-by-step explanation:

We need to find the points at which the graphs y = x^2 + x – 2 and y = 2x – 2 intercept.

We know that:

x^2 + x – 2 = 2x – 2

x^2 - x = 0

Factorizing:

x(x-1) = 0

Therefore, the solution to the system of equation is x=1 and x=0.

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3 years ago