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4 years ago

you answer 95% of the questions correctly on a 40 question test how many questions do you answer incorrectly?

1 answer:

5 0

You answer 38 questions incorrectly because you use the part/whole=%/100 so its p/40 = 95%/100 so 40 x 95 = 3800 then divide it by 100 so it is 38 questions.

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Students from two age groups were surveyed to see how they travel to school. Here are the results:

liq [111]

Answer:

The table representing the number of students by which mode of transport they travel is given as:

Walk or bike Bus Car Row Total

Below age 15 87 60 18 165

Age 15 and above 65 50 80 195

Column Total 152 110 98 360

We know that a relative frequency of an event is the ratio of frequency to the total number of trials.

i..e we divide each frequencies by 360 to obtain a two-way relative frequency.

Hence,the table is given as:

Walk or bike Bus Car Row Total

Below age 15 0.24 0.17 0.05 0.46

Age 15 and above 0.18 0.14 0.22 0.54

Column Total 0.42 0.31 0.27 1

6 0

3 years ago

Read 2 more answers

Triangle ABC is reflected over the x-axis. What are the coordinates of the image of the vertex A?

marissa [1.9K]

The correct answer would be d (2,-5)

3 0

3 years ago

2 to the power of 4 x 2 to the power of 9 x 2

attashe74 [19]

Answer: 8^2 18^2

Step-by-step explanation: The way that you figure out the power is by multiplying the 4x2=8 than the 9x2=18 than you raise them both to the second power.

6 0

3 years ago

Find the surface area of the cylinder. Use 3.14 for pi. Do not round the answer.

MrRissso [65]

Answer:

188.4 ft

Step-by-step explanation:

3.14x5^2x2=157 ft

3.14x10=31.4

31.4+157=188.4 ft

3 0

2 years ago

D = rt, for r<br><br><br><br> Someone please help me out?

lianna [129]

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

All you have to do is divide the t on both sides and you'll get...

$r=\frac{d}{t}$

4 0

3 years ago