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luda_lava [24]
2 years ago
14

Find constant of variation k if y varies directly as x, when y = 3 when x = 8. K =?

Mathematics
1 answer:
posledela2 years ago
8 0

Answer:-5

Step-by-step explanation:

You have your y and k because there + you can - and you get a -5

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A car travels 182 miles in 3 hours and 15 minutes. How many miles does it travel per hour?
timofeeve [1]
57 miles about I'm not positive but I think this is right
6 0
3 years ago
Solve 5/8-17/8 and show work
prisoha [69]

5/8 - 17/8

combine : 5-17 / 8

subtract : 5 - 7 = -12

-12/8

apply fraction rule ( -a/b = - a/b) : - 12/8

cancel common factor 4

answer : - 3/2

I hope this helped

4 0
3 years ago
8tbsp. 2tsp.<br> x 15<br> _________
uysha [10]
The answer is 130 tablespoons
3 0
2 years ago
A jar containing only nickels and dimes contains a total of 60 coins. The value of all the coins in the jar is $4.45. Solve by e
borishaifa [10]

Answer: 31 nickels and 29 dimes

<u>Step-by-step explanation:</u>

Nickels (.05): x

Dimes (.10): y


 Value:     .05x + .10y = 4.45 →  -20(.05x + .10y = 4.45)   →   -x - 2y = -89

Quantity:        x  +    y  = 60   →       1(x  +    y  = 60)           →   <u> x  + y </u> = <u> 60 </u>

                                                                                                       -y  = -29

                                                                                                        y  =  29

Next, substitute "29" for "y" into either equation and solve for "x":

x +  y  = 60

x + 29 = 60

x          = 31


5 0
3 years ago
SOMEONE HELPPPPPPPPP!!!!!!
Finger [1]

Answer:

104 yd^2.

Step-by-step explanation:

Area of the 2 circles = 2 * π r^2

=  2 * π * 4^2

= 32 π yd^2.

Area of the side of the cylinder = 2 π r h

= 2  π * 4 * 9

= 72 π yd^2.

Total surface area = 32 + 72

= 104 yd^2.

6 0
3 years ago
Read 2 more answers
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