2 years ago

If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 8?

Mathematics

1 answer:

Illusion [34]2 years ago

3 0

Answer:

2/3

Step-by-step explanation:

you can set it up as x/y because it varies directly

so when y=6 x=72

72/6 = 12

so x will always be 12 times greater than y

x=12y

so if x=8

8=12y

y=8/12

y=2/3

You might be interested in

Is (2, 2) a solution of the system y = x and x + 2y = 6?

Mariana [72]

Answer:

yes

Step-by-step explanation:

Substitute x = 2 and y = 2 into both equations and if both are true then (2, 2) is a solution of the system.

y = x, that is

2 = 2 ← True

x + 2y = 6, that is

2 + 2(2) = 2 + 4 = 6 ← True

Thus (2, 2) is a solution of the system

7 0

2 years ago

Read 2 more answers

Jethro is planting flowers in his garden. He wants the ratio of tulips to roses to be 2 to 1. Jethro wants to plant a total of 1

attashe74 [19]

Given:

Ratio of tulips to roses = 2:1

Total number of flowers = 18

To find:

The number of tulips.

Solution:

Let the number of tulips and roses are 2x and x respectively.

According to the question,

$2x+x=18$

$3x=18$

Divide both sides by 3.

$x=\dfrac{18}{3}$

$x=6$

Now,

Number of tulips $=2(6)$

$=12$

Therefore, the number of tulips is 12.

7 0

2 years ago

Simplify:<br> (2-2x5-5)-4

Pavlova-9 [17]

Answer:

(2*5^2)+4/3^2-5

(2*25)+4/3^2-5

50+4/3^2-5

50+1.7-5

46.7

7 0

2 years ago

A furniture store has a chair originally priced at $76 on sale for $58. What is the percent of decrease rounded to the nearest t

BabaBlast [244]

Answer:

23.7%

Step-by-step explanation:

The percentage change can be computed as ...

((new value)/(original value) -1) × 100%

= (58/76 -1) × 100%

≈ (0.763 -1) × 100% = -23.7%

The decrease is 23.7%.

7 0

2 years ago

Read 2 more answers

Please hurry it almost due

kolezko [41]

Answer: -18 - -18

Step-by-step explanation: Aka negative eighteen minus negative eighteen

5 0

2 years ago