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3 years ago

Uma professora reservou 6 folhas de papel colorido para cada um de seus 28

Mathematics

1 answer:

Lapatulllka [165]3 years ago

4 0

Answer:

4 students were missing

Step-by-step explanation:

A teacher reserved 6 sheets of colored paper for each of her 28

students do a job. As some students were missing, the teacher gave 7

sheets for each student present. How many students were missing?

6*28=168

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For a class trip, there are two adults for every 15 students. There are 238 people (adults and students) on the trip. How many s

-Dominant- [34]

Answer:

210

Step-by-step explanation:

x = num of adults

x + 7.5x = 238

8.5x = 238

x = 28

#students = 238-x

= 210

8 0

3 years ago

I'll mark you as the brainiest if you get this correct thx xxx This homework is due tomorrow thx sm for your help

N76 [4]

Answer:

8 boxes of pens, 3 boxes of pencils

Step-by-step explanation:

120 is 3 boxes of pencils

120 is 8 boxes of pens

6 0

3 years ago

Read 2 more answers

]solomon needs to justify the formula for the arc length of a sector. which expression best completes this argument? the circumf

Anna35 [415]

Answer:

$\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$ best completes this argument

Step-by-step explanation:

Circumference of circle = $\pi \cdot d$

Where d is the diameter of circle

We are given that if equally sized central angles, each with a measure of n°, are drawn, the number of sectors that are formed will be equal to $\frac{360^{\circ}}{n^{\circ}}$

So, Number of sectors = $\frac{360^{\circ}}{n^{\circ}}$

The arc length of each sector is the circumference divided by the number of sectors

$\Rightarrow \frac{\pi \cdot d}{\frac{360^{\circ}}{n^{\circ}}}$

Diameter d = 2r (r = radius)

$\Rightarrow \frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$

Option b is true

Hence $\frac{2 \pi r}{\frac{360^{\circ}}{n^{\circ}}}$ best completes this argument

7 0

4 years ago

Determine whether each sequence is an arithmetic sequence. Write yes or no. Explain. 4, 7, 9, 12, ...

sesenic [268]

Answer:

Step-by-step explanation:

the sum of 4+7+9+12=32

32/4= 8

8 is not part of the sequence. Therefore its not arithmetic.

6 0

3 years ago

Jason's meeting starts at 3 p.m. and is 270 miles away. He estimates that he can average 60 miles per hour. What time should he

Maurinko [17]

Answer:

He should leave by 10:30 a.m

Step-by-step explanation:

If he drives 60 miles per hr it will take him 270÷60=4.5 (4 n half) hrs to reach there.

If he want to be there at 3p.m he should leave by 10:30 a.m

4 0

3 years ago