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Brums [2.3K]
3 years ago
7

I need help with this math ​

Mathematics
2 answers:
ivann1987 [24]3 years ago
4 0

Answer: 105

Expination: i used a calculater

olga55 [171]3 years ago
4 0
H = 21 x 5
h = 105

Hope this helps
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A 15-minute TV program consists of one commercial of 1
Margarita [4]

Answer:

6 7/8 minutes

Step-by-step explanation:

Say the entertainment segments are each x minutes long. Then, we have the equation:

x + x + 1 1/4 = 15

2x + 1 1/4 = 15

2x = 15 - 1 1/4

We need a common denominator. 1 1/4 = 5/4 and 15 = 60/4, so we now have:

60/4 - 5/4 = 55/4. Then: 2x = 55/4

Divide by 2 from both sides:

(55/4) / 2 = 55/8 = 6 7/8

Thus, each entertainment segment is 6 7/8 minutes long.

Hope this helps!

7 0
3 years ago
Read 2 more answers
I don't know what to do
RUDIKE [14]
Just do what is says to do i can answer it for u but im not sure if it will be correct
i have did this problem before tho

6 0
3 years ago
What is the equation of the line that passes through the points (-6,2) and (4,-3)
stich3 [128]

Answer:

The equation is:  9x-y = 56

Step-by-step explanation:

Given two point:  (x,y) = (-6,2)

                            (x,y) = (4,-3)

Now, to find the slope of the line:

Slope =   y1-y2/x1-x2  => 2-4/-6-(-3) = -1/9

Then, the equation of the line passing through a point:

=>   y-y1 = m(x-x1)

=>   y-2 =  -1/9(x-6)

=>  1(y-2) = -9(x-6)

=>  y-2 = -9x+54

=>  9x-y = 56

7 0
3 years ago
In addition to his hourly rate, Mr. Smith is paid $2.20 for each watch he fixes. Write an expression for his income if he fixes
andrew11 [14]

Answer:

2.2r+9.5h

Step-by-step explanation:

3 0
3 years ago
There are 81 women teachers at Russell High. If 45% of the teachers in the school are women, how many teachers are there at Russ
igor_vitrenko [27]

Answer:

180 teachers

Step-by-step explanation:

In this case, we know the value corresponding to 45% of female teachers which is 81, therefore, to find the total it would be:

% teachers    #teachers

       45                 81

       100                 x

we apply the rule of three:

x = 100 * 81/45

x = 180

which means that there are a total of 180 teachers at Russell High

4 0
3 years ago
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