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Novay_Z [31]
2 years ago
11

A small town's phone numbers either begin 373 or 377. How many phone numbers are available?

Mathematics
1 answer:
ser-zykov [4K]2 years ago
6 0

Answer:

  • <u><em>There are 20,000 number available.</em></u>

Explanation:

To determine <em>how many phone numbers are available </em>you need to know how many digits the number contains.

I will assume the same number of digits for other similar questions, i.e. 7.

With 7 digits, the numbers that begin with 373 or 377 can be of the form 373XXXX or 377XXXX.

Where each X can be any digit 0 - 9. Then, there are 10 different options for each X.

Thus, there are 10×10×10×10 = 10,000 different numbers starting with 373 and other 10,000 different numbers starting with 377.

In total, there are 20,000 numbers available.

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52% of 0.75 is what number?
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Answer:

.39

Step-by-step explanation:

you have to change the percentage into a decimal, .52 then multiply that by .75

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Litters of Punch is 6

Number Of Servings would be 16

Number Of Servings would be 24

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Which function has the greater rate of change?
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Answer:

Function 1

Step-by-step explanation:

<u>Function 1:</u>

y=\dfrac{5}{6}x+10

The rate of change of the function 1 is:

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<u>Function 2:</u>

The rate of change of the function 2 is:

\dfrac{15.75-14.25}{1-(1)}=\dfrac{1.5}{2}=0.75

Hence, the greater rate of change has function 1.

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3 years ago
What are the coordinates of the point on the directed line segment from (3, 3) to (7,−5) that partitions the segment into a rati
Annette [7]

Answer:

The coordinates of the point is (5.5, -2)

Step-by-step explanation:

Okay, what we want to do here is to get the point that divides the line that joins the points (3,3) to (7,-5) in the ratio 5 to 3

Generally, given the ratio a:b and we want to divide the line joining the points (x1,y1) and (x2,y2) in that ratio, we use the condensed formula below;

Let’s call the point dividing the line in the given ratio z.

The coordinates of Z is;

{(bx1 + ax2)/(a+b), (by1 + ay2)/(a+b)}

In this question (x1,y1) = (3,3)

While (x2,y2) = (7,-5)

while a:b = 5:3

Substituting these values into the coordinate equation for point z, we have ;

{((3(3) + 5(7))/(5+3), ((3)(3) + 5(-5))/(5+3)}

= {44/8 , -16/8} = {5.5, -2}

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