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Zolol [24]
2 years ago
15

Use the table shown in the image! 1. Which equation expresses “y” in terms of “x”? A. y=17x B. y=25x C. x=51y D. x=85y 2. What i

s the charge for renting a machine for 3.5 hours? A. $51.50 B. $59.50 C. $65.50 D. $86.50
Please include all work!

Mathematics
2 answers:
34kurt2 years ago
5 0
2. $59.50 I think im not sure
levacccp [35]2 years ago
3 0

Answer:  1. A. y=17x

2.  $59.50

Step-by-step explanation:

1. In the table , it can be seen that as x increases y increases with the proportionality constant k = \dfrac{y}{x}=\dfrac{51}{3}=\dfrac{85}{5}=\dfrac{119}{7}=17,.

Equation of direct variation between  x and y : y=kx

Put k= 17 , we get

y=17x , which is the required equation.

So correct option is "A".

2. To find : The charge for renting a machine for 3.5 hours.

Put x= 3.5 in above equation , we get

y=17(3.5)=59.5

Hence, the  charge for renting a machine for 3.5 hours is $59.50.

So correct option is "B".

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20 square root of 270 /4 square root of 3
OleMash [197]

Answer:

<u>The most simplified form is 15√10</u>

Step-by-step explanation:

1. Let's simplify the expression:

20√270 ÷ 4√3

20√9 * 30/  4√3 (√270 = √9 * 30)

60 √30/ 4√3

(60 √3 * √10) / 4√3 (√30 = √3 * √10)

60/4 √10 ( We cancel √3 in the numerator and in the denominator)

15√10

<u>The most simplified form is 15√10</u>

6 0
3 years ago
A square has a diagonal length of 5 cm. The area of the squareiscm2. Round answer to the nearest tenths ifneeded.
Whitepunk [10]
\begin{gathered} \text{Diagonal}=5\operatorname{cm} \\ \text{Area}=\frac{D^2}{2} \\  \\ \text{Area}=\frac{(5cm)^2}{2} \\  \\ \text{Area}=\frac{25\operatorname{cm}^2}{2} \\  \\ \text{Area}=12.5\operatorname{cm}^2 \\ \text{The area of the square is 12.5 cm }^2 \end{gathered}

6 0
1 year ago
3 (2x-4)=2 (x+4) solve the following problem
ratelena [41]
3(2x-4)=2(x+4)
6x-12=2x+8
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7 0
3 years ago
Read 2 more answers
PLEASEEE HELP BEEN STUCK WITH THIS ILL MARK U BRAINLESS PLEASEEEE
andre [41]

there are 18 marbles all together

4 are red

18÷4= 4.5

percent 4.5%

fraction 4 1/2

decimal 4.5

I'm not sure about the second hald but I hope this helped ^^

6 0
2 years ago
neveah and jason stopped by a restaurant to eat neveah purchased 2 hotdogs and 1 drink for $3.75 jason purchased 3 hotdogs and 2
RoseWind [281]

Answer:

2x + y = 3.75

3x + 2y = 6

Step-by-step explanation:

x = cost of 1 hot dog

y = cost of 1 drink

Neveah: 2x + y = 3.75

Jason: 3x + 2y = 6

5 0
3 years ago
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