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Vitek1552 [10]
3 years ago
9

The value of y varies directly as x, with a constant of variation of -8. What is the value of y when x is 7?

Mathematics
2 answers:
slega [8]3 years ago
6 0

Answer:

y = -56

Step-by-step explanation:

The equation for direct variation is

y = kx  where k is the constant of variation

y = -8 x

We know x =7

y = -8*7

y = -56

denis-greek [22]3 years ago
6 0

Answer:

-56

Step-by-step explanation:

y = kx,

Where k = -8

y = -8x

y = -8(7)

y = -56

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hoa [83]

The required intersection would be at the point (55, 460) in the given graph which shows a round of golf is 55 and a total cost is $460.

<h3>What is a graph?</h3>

A graph can be defined as a pictorial representation or a diagram that represents data or values.

We have been given that the graph represents the following situation.

Golfers must first pay a $75 membership fee and an additional $7 for each round of golf in order to play at Gulf Shores Range.

Golfers at the Royal Estates Country Club pay $5 for each game of golf, but membership costs $185.

Since the x-axis represents a round of golf and the y-axis represents a total cost.

According to the graph,

Here is a round of golf = 55 and a total cost = $460

So the intersection represents this situation at the point (55, 460).

Therefore, the required intersection would be at the point (55, 460) in the given graph.

Learn more about the graphs here:

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5 0
1 year ago
Solve the equation<br> what does x equal to<br> 46+x÷6−21=25+6
Diano4ka-milaya [45]

Answer:

×=36

Step-by-step explanation:

46+1/6X-21=31

25+1/6X=31

1/6X=31-25

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7 0
3 years ago
If Mary deposits $275 in principal at an interest rate of 3.2 percent, how much interest will she earn in one year?
elena55 [62]
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8 0
3 years ago
7
trasher [3.6K]

Answer:

we have to use the formula of simple interest, which is

I = P r t

Where I is the interest earned, P is the amount invested, r is the rate of interest and t is the time duration .

In the given question, I = $4840 , r =11% or 0.11, t=11, P is unknown .

Substituting the values in the formula, we will get

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P=4000

So she invested $4000

5 0
2 years ago
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4 years ago
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