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Lelechka [254]
3 years ago
9

I need number 22 PLS AND THANK YOU!

Mathematics
1 answer:
notsponge [240]3 years ago
6 0

Answer:

For any two given points (x1,y1) and (x2,y2), the slope = (y2-y1)/(x2-x1)

Let's take the points (15,3) and (30, 6):

slope = (y2-y1)/(x2-x1)

= (6-3)/(30-15)

=3/15

=1/5 =0.2

The slope, in general, means the rate of change of y, relative to x. In the context of this question, the slope tells us that the amount of concrete that can be poured (in yards) is a fifth of the time taken (in minutes).

You might be interested in
the length and width of a rectangle are whole numbers of centimeters. neither is divide by 6.the area of the rectangle is 36 squ
liraira [26]

Note that

  1. 36=1·36;
  2. 36=2·18;
  3. 36=3·12;
  4. 36=4·9;
  5. 36=6·6.

If neither (length and width) is divide by 6, then cases 1, 2, 3 and 5 are extra, because

  1. 36:6=6 (is divide by 6);
  2. 18:6=3  (is divide by 6);
  3. 12:6=2  (is divide by 6);
  4. 6:6=1  (is divide by 6).

The only possible dimensions are: width - 4 cm and length - 9 cm.

Then the perimeter is

P=4+9+4+9=26 cm.

Answer: 26 cm.

3 0
4 years ago
Does Anyone Knows This Pliz Help Me?
Andrew [12]

Answer:

#3) (4/3) pi r^3

(4/3) pi 4^3

(4/3) pi 64

volume = 21.333pi cm^3

#4) (4/3) pi r^3

(4/3) pi 14^3

(4/3) pi 2744

volume = 3658.666pi cm^3

Step-by-step explanation:

hmu for more info

8 0
3 years ago
Graph (-3, 2) (5, 2) (5, -3) and (-3, -3) and find the perimeter.
Nostrana [21]

Answer:

26

Step-by-step explanation:

Firstly, plot the points on graph paper which you can find on the internet. The first number in the ordered pair, (the ones in parenthesis), is the x coordinate. The other number is the y coordinate. Put these onto a graph which is attached. The perimeter is 26.

3 0
3 years ago
Read 2 more answers
The sum of two numbers is 172. Their difference is 10. What are the numbers?
kykrilka [37]

Answer:

The numbers are 91 and 81

Step-by-step explanation:

Let:

x be the first number.

y be the second number.

The sum of two numbers is 172.

x + y = 172

Their difference is 10.

x - y = 10

Try to arrange for solving x:

x - y = 10

x = 10 + y

Now substitute the x to the first equation.

x + y = 172

(10 + y) + y = 172

10 + y + y = 172

10 + 2y = 172

2y = 172 - 10

2y = 162

y = 162 ÷ 2

y = 81

Now solve for x:

x + y = 172

x + (81) = 172

x = 172 - 81

x = 91

Now let's check one more time:

The sum of two numbers is 172:

91 + 81 = 172

172 = 172 (correct)

Their difference is 10:

91 - 81 = 10

10 = 10 (correct)

5 0
3 years ago
Read 2 more answers
Corrine bought a coffee and a bagel for $5.35. If the coffee cost $1.95, how much did the bagel cost?
ki77a [65]
5.35 minus 1.95 = 3.40
6 0
3 years ago
Read 2 more answers
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