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3 years ago

38% of the 1200 Robinson students are 7" graders. How many Robinson students are 7 graders?

Mathematics

1 answer:

Nastasia [14]3 years ago

4 0

For percentages, we write the number before the % sign as a decimal out of 1. So our percentage would actually be 0.38

To find what percent of Robinson students are 7th graders, we simply multiply 0.38 by 1200 which gives us 456

The answer is 456

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I need help explanation if possible

viva [34]

Answer:

y = 16.

Step-by-step explanation:

The ratio of corresponding sides of similar triangles are the same.

The small and large triangles are similar ( - that is corresponding angles are congruent).

So 2/(2+8) = x / 20

2/10 = x/20

10x = 40

x = 4.

Therefore y = 20 -4 = 16.

3 0

2 years ago

In a group of 60 workers, the average salary is $80 a day per worker. if some of the workers earn $75 a day and all the rest ear

Softa [21]

The total number of workers that earn $75 per day is 48

<h3>What is average salary?</h3>

The average salary is calculated based on reported salaries of respondents. The average salary definition is to add the salaries in the sample together, then divide by the number of respondents.

Given that:

In a group of 60 workers, the average salary is $80 a day per worker.

If some of the workers earn $75 a day and all the rest earn $100 a day.

Let 'x' be the total number of workers that earn $75 per day.

So, the total number of workers that earn $100 per day is (60 - x).

As the average salary of 60 workers is $80.

Then,

$\frac{75x + 100(60-x)}{60} =80$

or, 75 x + 6000- 100x = 80*68

or, -25x= -1200

x= 48

So, the total number of workers earn $75 per day is 48.

Learn more about the concept here:

brainly.com/question/21835898

#SPJ1

4 0

2 years ago

I NEED HELP

noname [10]

Answer:

You can use a number line to subtract -6 from -7. The difference is -1.

6 0

3 years ago

Read 2 more answers

-8(x + 1) + 3(x - 2) = -3x + 2?

alexira [117]

First you need to distribute the -8
So you would get -8x-8 now distribute the 3 so it would be 3x-6
-8x-8+3x-6=-3+2 is how it should look
Now combine the -8x and 3x cause their like terms and also -8 and -6
-5x-14=-3x+2 now add -3 to both sides
-2x-14=2 and add 14 to both sides
-2x=12 all left to do is divide both by -2
X=-6

8 0

3 years ago

pls help me i need to past this test this is the LAST TEST before the christmas break and if right will give brainlest

Dafna11 [192]

Answer:

196

Step-by-step explanation:

find the slope with y2-y1 / x2-x1

points (7, 1372) and (12, 2352)

(2352- 1372) / 12-7

= 196

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5 0

3 years ago