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nexus9112 [7]
3 years ago
5

Find the area of a circle with the radius 48mm. Use 3.14 as pie. Round to the nearest hundredth if necessary.

Mathematics
1 answer:
inn [45]3 years ago
7 0

48 \times 3.14

150.72mm^2

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The length of a rectangle is 10cm greater than it's width,the perimeter is 70cm.find the length nd width
LuckyWell [14K]

Step-by-step explanation:   TS 5 15    8 36

L = W + 10  cm

Perimeter = 2(L + W)

Perimeter = 70  = 2(W +10 +W)

                70/2  = 2(W +10 +W) / 2

                   35  =  (W +10 +W)

                   35  =  2W +10  

            35 - 10  =  2W +10  - 10

                  25  = 2W

                  25/2  = 2W/2

                  25/2 cm = W         W = ??  cm

L = W + 10  cm

L = 25/2 + 10  cm                     L  = ??  cm

5 0
2 years ago
A restaurant manager states the number of customers that enter the restaurant is equal to 3 times the number of people that buy
kotegsom [21]
The answer to this question will be 45 because you minus 15 on both sides and get 45 for 60 minus 15 and then will minus 2x on both sides and the Equation will now be x=45 and you plug it in to check
8 0
3 years ago
What is the slope of a line that passes through the points (4, - 3) and (- 2, 9)
oee [108]

Answer:

-2

Step-by-step explanation:

slope = y2 - y1  / x2 - x1

= 9 - (-3)  /   -2 -4

= 12 / -6

= -2

3 0
2 years ago
Write the system so both equations are in slope-
umka21 [38]

a) 2y = -3x -8

dividing through by 2

y = -3x/2 -4

b) 2y + 3x = 6

2y = -3x +6

dividing through by 2

y = -3x/2 + 3

please mark me brainlest

8 0
3 years ago
the credit remaining on a phone card in dollars is a linear function of the total calling time made with the card in minutes. Th
Advocard [28]

Answer:

he credit remaining on a phone card (in dollars) is a linear function of the

total calling time made with the card (in minutes), as shown in the figure below.

The remaining credit after 45 minutes of calls is $22.80 , and the remaining

credit after 64 minutes of calls is $19.76.

What is the remaining credit after 73 minutes of calls?

;

Not sure what figure you are referring to, write an equation from the given values:

Assign the values as follows

x1 = 45; y1 = 22.80

x2 = 64; y2 = 19.76

:

Find the slope (m) using the formula: m = %28y2-y1%29%2F%28x2-x1%29

m = %2819.76-22.80%29%2F%2864-45%29 = %28-3.04%29%2F%2819%29

m = -.16

:

Write the equation using the point/slope formula: y - y1 = m(x - x1)

y - 22.80 = -.16(x - 45)

y - 22.80 = -.16x + 7.2

y = -.16x + 7.2 + 22.80

y = -.16x + 30

;

Use this equation to find the credit (y) when minutes (x) = 73

y = -.16(73) + 30

y = -11.68 + 30

y = $18.32; credit after 73 minute of calls

:

:

That you can also see the original value of the phone card: x=0, y = $30

;

:

Did this help you understand what's going on here? Any questions

Step-by-step explanation:

8 0
3 years ago
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