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kaheart [24]
3 years ago
7

For a school play,the teacher asked the class to set up the chairs in 20 rows with 25 chairs in each roes after setting up all t

he chairs 5 chairs,how many chairs did the class set up?
Mathematics
1 answer:
LenKa [72]3 years ago
3 0
500 should be correct
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a cell phone company test 95 cell phones and finds that seven of them have defects out of the 760 cell phones how many would you
suter [353]

Answer:

56

Step-by-step explanation:

simple ratio: 7/95 = x/760

first, calculate 7/95 which is 0.0736

next, multiply that by 760, which would be 56

6 0
3 years ago
The fractions 1/4,1/2,3/12 and are shown below
exis [7]

Answer:

the first one

Step-by-step explanation:

3 0
3 years ago
I dentist the slope and a point on the line
Anika [276]

Answer:

2/3 (0,-3) is one possible answer.

Step-by-step explanation:

y  -1 = 2/3(x-6)  We want to get this into the slope intercept form of a line.  We want it to be in the form y = mx + b.  Let's clear the fraction first by multiplying the whole equation through by 3.

3(y - 1) = 3[2/3(x - 6)]

3y -3 = 2(x -6)

3y - 3 = 2x -12

3y = 2x - 9  Now divide all the way through by 3 to get

y = 2/3x - 3  

y = mx + b.  The m part is the slope.  In this equation the slope is 2/3

There are in infinite amount of points on a line.  I do not know if they give you a picture or if you are just to create your own.  I am going to create a point that have x = 0.  I get to pick the point.  I could pick any number.  0 is just usually really easy.  So, if I substitute 0 for x I will get:

y = 2/3(0) - 3

y = 1  so my point is (0,-3)

Now that I think about it, I do not think that I would start out clearing the fraction even though it works.  I think that I would do it like this"

y - 1 = 2/3(x - 6)  Distribute the 2/3 through (x - 4) to get

y-1 = 2/3x -4  I can make -6 a fraction by putting it over 1.  Now we have 2/3(-6/1)  multiply across to get  -12/3.  A positive times a negative is a negative.  -12 divided by 3 is -4.

y - 1 = 2/3x -4   now add 1 to both sides.

y = 2/3x -3

6 0
1 year ago
What is the value of s in the equation 3 r equals 10 plus 5 s, when r equals 10? 4 8 100 200
alisha [4.7K]

Answer

<h2>4</h2>

Step-by-step explanation:

Given,

r = 10

Let's create an equation,

3r = 10 + 5s

plugging the value of r

3 \times 10 = 10 + 5s

Multiply the numbers

30 = 10 + 5s

Move 5s to L.H.S and change its sign

Similarly, Move 30 to R.H.S and change its sign.

- 5s = 10  - 30

Calculate

- 5s =  - 20

The difference sign ( - ) should be cancelled on both sides

5s = 20

Divide both sides of the equation by 5

\frac{5s}{2}  =  \frac{20}{5}

Calculate

s = 4

The value of s is 4.

Hope this helps..

Best regards!!

6 0
3 years ago
Read 2 more answers
In the morning, a farm worker packed 3 pints strawberries every four minutes. In the afternoon, she packed 2 pints of strawberri
Rama09 [41]
3 pints every four minutes.(3+1=4)
2 pints every 3 minutes.(2+1=3)

What I realised was that the difference is 1 pint every minute.
3 0
3 years ago
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