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polet [3.4K]
3 years ago
12

What is the slope of the line that passes through the pair of points? (4.7).(7,-2)

Mathematics
1 answer:
Tju [1.3M]3 years ago
5 0

Answer:

-3      i hope this helps :)

Step-by-step explanation:

(4,7)    (7,-2)

x1 y1    x2 y2

<u>-2 - 7 </u> = <u>-9</u> = -3

7  - 4      3

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There is a total of $39.55. There are 3 times as many dimes as nickels, how many of each coin type was collected ?
katovenus [111]

Number of dimes collected is 339 and number of nickels collected is 113

<em><u>Solution:</u></em>

Given that There is a total of $39.55

There are 3 times as many dimes as nickels

To find: Number of dimes and nickels collected

Let "d" be the number of dimes collected

Let "n" be the number of nickels collected

We know that,

1 dime = $ 0.10

1 nickel = $ 0.05

From given information,

There are 3 times as many dimes as nickels

So, we get

Number of dimes = 3(number of nickels)

d = 3n

Given that there is total of $ 39.55

number of dimes collected x value of 1 dime + number of nickels collected x value of 1 nickel =  $ 39.55

3n \times 0.10 + n \times 0.05 = 39.55\\\\0.3n + 0.05n = 39.55\\\\0.35n = 39.55\\\\n = \frac{39.55}{0.35}\\\\n = 113

Substitute n = 113 in d = 3n

d = 3(113) = 339

<em><u>Summarizing the results:</u></em>

number of dimes collected = 339

number of nickels collected = 113

4 0
3 years ago
1.
Bad White [126]

first polygon

ext. angle=180°-120°

=60°

ext \: ang =  \frac{360}{n}

n=360°/60°

n=6

second polygon

n=2(6)=12

ext. ang= 360°/n = 360°/12° = 30°

int. ang = 180°-30°= 150°

answer is C

6 0
3 years ago
A number n is multiplied with —9 to give 63. Find the value of n.
FrozenT [24]

Answer:

n = -7

Step-by-step explanation:

63÷-9

5 0
2 years ago
Read 2 more answers
If X = 16 feet and Y = 8 feet, what is the area of the figure above ? Use 3.14 for pi .
Setler [38]

Answer:

A

Step-by-step explanation:

You can probably figure out the rectangle of 16 by 8 so no explaining there. 16×8=128. You know that diameter of the cirkel is equal to y so 8. The diameter of a cirkel is two times its radius. so 8=2r. r=4. The area of a cirkel is calculated by the formula \pi×r^2. Fill in r=4 in \pi×r^2 gives us \pi×4^2=16\pi. You only have half of the cirkel so 16\pi/2=8\pi. 128+8\pi=153.12 which is A.

5 0
3 years ago
1 What is the RANGE for the following graph?<br><br> PLEASE HELP 25 POINTS
xenn [34]
I cant see the picture
5 0
3 years ago
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