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3 years ago

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

Mathematics

2 answers:

-Dominant- [34]3 years ago

7 0

Answer:

<h3>Answer: 46</h3>

Step-by-step explanation:

percentage scored = 92

number of correct question = x

total number of questions = 50

The formula for calculating the percentage scored

= number of correct question / total number of questions x 100

That is

92 = \frac{x}{50}

x \frac{100}{1}

100

92 = \frac{100x}{50}92=

100x

cross multiplying :

100x = 92100x=92 x 5050

100x = 4600100x=4600

dividing through by 100 , we have

Therefore, she got 46 questions right

Bess [88]3 years ago

4 0

Step-by-step explanation:

Basically 100% means she scored all 50 question correct.

Solution:

100% = 50 questions

1% = 50÷100 = 0.5

92/100 x 50 = 46

Answer: 46

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an angle measures 58.4° more than the measure of its supplementary angle what is the measure of each angle

olga55 [171]

Answer:

58.4

119.2

Step-by-step explanation:

Givens

Let one angle = x

Let the other angle = x + 58.4

Together they make 180 degrees.

Equation

x + x + 58.4 = 180 Collect like terms.

Solution

2x + 58.4 = 180 Subtract 58.4 from both sides

2x = 180 - 58.4

2x = 121.6 Divide by 2

x = 60.8

Answer

x = 60.8

x + 58.4 = 119.2

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gogolik [260]

2b - 6 = -4

2b = -4 + 6

2b = 2

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3 years ago

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What is greater -5 1/2 or 6.5

Anton [14]

Answer:

6.5

Step-by-step explanation:

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3 years ago

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Select the correct answer.

erastova [34]

The answer is 0.34 because the answer is 0.34

7 0

3 years ago

The figures are similar. Find the area. The area of △ △ A B C is 15 square cm. The height of △ △ A B C is 5 cm and the height of

aalyn [17]

Answer:

The area of triangle DEF is $282\ cm^{2}$

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

To find the scale factor, divide the height of triangle DEF by the height of triangle ABC

Let

z ------> the scale factor

$z=\frac{13}{5}$

step 2

Find the area of triangle DEF

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z -----> the scale factor

x ----> the area of triangle DEF

y -----> the area of triangle ABC

$z^{2}=\frac{x}{y}$

we have

$z=\frac{13}{5}$

$y=15\ cm^{2}$

substitute and solve for x

$(\frac{13}{5})^{2}=\frac{x}{15}$

$x=(\frac{169}{25})(15)$

$x=282\ cm^{2}$

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4 years ago