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3 years ago

Tracy received a score of 85% on her quiz. If Tracey answered 9 questions incorrectly, how many questions were on her quiz?

Mathematics

2 answers:

lions [1.4K]3 years ago

4 0

Answer:

answer is 136

Step-by-step explanation:

first we would find the area of the 2 triangles, formula is 1/2bh. which would give you 12, since there is 2 triangles would be 24. then you would find the area of the 3 rectangles around it which are 42, 35 and 35.

Vikki [24]3 years ago

3 0

Answer:

Step-by-step explanation:

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Michelle is filling out a form and needs to enter her height in meters. She

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1.45 meters is your answer

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3 years ago

What is 4.2 = c/8 And it would be a lot helpful

liberstina [14]

Step-by-step explanation:

c = 8 × 4.2 (move 8 from the denominator to the side where the 4.2 is - make c the subject)

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3 years ago

Read 2 more answers

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit. What is th

zhenek [66]

Answer:

The percent error of Heather's calculation is 8%.

Step-by-step explanation:

Given:

Heather measures the temperature of her coffee to be 133.4 degrees fahrenheit. It is actually 145 degrees fahrenheit.

Now, to find the percent error of Heather's calculation.

The temperature of coffee Heather measures = 133.4° F.

Coffee's actual temperature = 145° F.

So, to get the measurement in error we subtract the temperature of coffee Heather measures from coffee's actual temperature:

$145-133.4=11.6\°.$

Now, to get the percent error:

$\frac{11.6}{145}\times 100$

$=\frac{1160}{145}$

$=8\%.$

Therefore, the percent error of Heather's calculation is 8%.

5 0

3 years ago

In each diagram, abc is a straight line. Find the unknown angles.

aleksandr82 [10.1K]

Answer:

The value of ∠b = 180°

Step-by-step explanation:

Given that;

ABC is a straight line

Another angle is 137°

Find:

The value of ∠a

The value of ∠b

Computation:

We know that, ABC is a straight line

So,

137 + The value of ∠a = 180

The value of ∠a = 180 - 137

The value of ∠a = 43°

The value of ∠b = 360 - 137 - The value of ∠a

The value of ∠b = 360 - 137 - 43

The value of ∠b = 180°

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3 years ago

What is 15(2x/3)-15(3/5)+20(9/10)

victus00 [196]

Answer:

hope this helped you

please mark as the brainliest (ㆁωㆁ)

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3 years ago