Write a direct variation equation that relates x and y. Assume that y varies directly as x. Then solve.
If y = 36 when x = 9, find x when y = 52.
a.
y = –4x; –13
c.
y = 4x; 10.4
b.
y = 3x; 13
d.
y = 4x; 13

Write a direct variation equation that relates x and y. Assume that y varies directly as x. Then solve. If y = 36 when x = 9, x = 13 when y = 52. Let y = kx; 36 = 9k; k = 36/9; k = 4; y = 4x; when y = 52; 52 = 4x; x = 52/4; x = 13

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Asked 3/24/2016 9:49:27 PM

Updated 3/27/2016 9:39:38 PM

1 Answer/Comment

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Write a direct variation equation that relates x and y. Assume that y varies directly as x. Then solve. If y = 36 when x = 9, x = 13 when y = 52.

Let y = kx;

36 = 9k;

k = 36/9;

k = 4;

y = 4x;

when y = 52;

52 = 4x;

x = 52/4;

x = 13

Let y = kx;

36 = 9k;

k = 36/9;

k = 4;

y = 4x;

when y = 52;

52 = 4x;

x = 52/4;

x = 13

Added 3/27/2016 9:39:38 PM

This answer has been confirmed as correct and helpful.

Confirmed by Andrew. [3/27/2016 11:35:34 PM]

If 10 n = 54, find n. What property are you making use of in this problem?
a.
n = 5.4, Division Property
c.
n = 5.4, Substitution Property
b.
n = 5.4, Plug in Property
d.
n = 5.4, Multiplicative Property

Question

Not Answered

Updated 294 days ago|6/29/2023 12:32:26 AM

1 Answer/Comment

If 10 n = 54, find n. n = 5.4, Multiplicative Property you arr making use of in this problem.

Solution

10n = 54

(n/10)(10) = (54/10)

n = 5.4

Solution

10n = 54

(n/10)(10) = (54/10)

n = 5.4

Added 294 days ago|6/29/2023 12:32:26 AM

This answer has been confirmed as correct and helpful.

The outside temperature rises steadily to 85° at 3 p.m., then drops steadily to 65° at 8 p.m..

Question

Not Answered

Updated 294 days ago|6/29/2023 12:32:56 AM

1 Answer/Comment

The outside temperature rises steadily to 85° at 3 p.m., then drops steadily to 65° at 8 p.m..the temperature rises steadily.

Added 294 days ago|6/29/2023 12:32:56 AM

This answer has been confirmed as correct and helpful.

Gallons of paint
0
1
2
3
4
5
Total Cost
0
16
32
48
64
80
Write an equation that describes the linear pattern in the data below. Use g for the number of gallons of paint and c for the total cost.
a.
g = 16c
c.
c = 16g
b.
g = 4g
d.
c = 7g

Question

Not Answered

Updated 4/1/2023 1:02:07 AM

1 Answer/Comment

Gallons of paint 0 1 2 3 4 5 Total Cost 0 16 32 48 64 80. g = 4g is an equation that describes the linear pattern in the data below. Use g for the number of gallons of paint and c for the total cost.

Added 4/1/2023 1:02:07 AM

This answer has been confirmed as correct and helpful.

If f(x) = 4x -5 and g(x) = x2 + 1. Find f(x + 5)
a.
4x
c.
(4x - 5)2
b.
4x + 15
d.
(4x - 5)2 + 5
**Weegy:** x2 - 4x + 4 = 0 (x - 2)(x - 2)=0 x - 2 = 0 x = 2 (More)

Question

Updated 2/7/2021 5:00:27 PM

1 Answer/Comment

If f(x) = 4x -5 and g(x) = x2 + 1.

f(x + 5) = 4(x + 5) -5 = 4x + 20 -5 = 4x +15

f(x + 5) = 4(x + 5) -5 = 4x + 20 -5 = 4x +15

Added 2/7/2021 5:00:17 PM

This answer has been confirmed as correct and helpful.

Write an inequality and solve this problem.
Three times the sum of a number and seven is greater than five times the number less thirteen.What is the solution set?
a.
n > 17
c.
n 14
d.
n < 17

Question

Not Answered

Updated 2/7/2021 5:04:45 PM

1 Answer/Comment

Three times the sum of a number and seven is greater than five times the number less thirteen.

3 (n+7)> 5n -13 ; 3n +21 > 5n -13 ; 21 + 13 > 5n -3n ; 2n <34 ; n < 17

3 (n+7)> 5n -13 ; 3n +21 > 5n -13 ; 21 + 13 > 5n -3n ; 2n <34 ; n < 17

Added 2/7/2021 5:04:45 PM

This answer has been confirmed as correct and helpful.

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