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Liula [17]
2 years ago
7

Hiro painted his room. After 333 hours of painting at a rate of 888 square meters per hour, he had 282828 square meters left to

paint.
Let yyy represent the area (in square meters) left to paint after xxx hours.
Which of the following information about the graph of the relationship is given?
Choose 1 answer:
Mathematics
2 answers:
igomit [66]2 years ago
5 0

Answer:

y = 52 - 8x

Step-by-step explanation:

Add both axisis together, nd divide

Hope this helped, and please mark as Brainliest <3

Lisa [10]2 years ago
3 0

Answer:

Slope and a point that is not an intercept

Step-by-step explanation:

To describe a point on the graph, we need a corresponding (x,y) pair.

In our case, these are corresponding values of hours of painting and area left to paint.

To describe the slope of the graph, we need information about the rate of change of the relationship.

In our case, this is the rate at which the area left to paint changes over time (in square meters per hour).

Hiro painted his room at a rate of 8 square meters per hour. This corresponds to a slope of -8.

After 3 hours of painting, Hiro had 28 square meters left to paint. This corresponds to the point (3, 28) and is not an intercept.

The slope and a point that is not an intercept are given.

Hope this helps:)

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Robert was able to travel 292.0 miles in 4.000 hours and used 38 liters of gasoline. What was robert's speed in feet per second?
torisob [31]

Distance traveled by Robert = 292 miles

Time taken by Robert to cover this distance = 4 hours.

Now converting miles in feet.

1 mile = 5280 feet

so, 292 feet = 292 * 5280 = 1541760 feet

Now converting 4 hours in seconds.

1 hour = 3600 seconds

so, 4 hours have 3600 * 4 = 14400 seconds.

Now the question says, we have to find the speed in feet per second

speed = \frac{distance}{time}

equals,

\frac{1541760}{14400}

= 107.067 feet per second

8 0
2 years ago
A survey of 2690 musicians showed that 368 of them are left-handed. Find a point estimate for p, the population proportion of mu
makkiz [27]

Answer: 0.137.

Step-by-step explanation:

Let p be the population proportion of musicians that are left-handed.

Given: Sample size : n= 2690   [subset of population]

Number of musicians that are left-handed: x= 368

Then the sample proportion: \hat{p}=\dfrac{368}{2690}\approx0.137

Since sample proportion is the best point estimate of the population proportion.

Hence, a point estimate for p, the population proportion of musicians that are left-handed is 0.137.

7 0
2 years ago
A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess
ANEK [815]

Answer:

See below in bold.

Step-by-step explanation:

Here is 1 grain on square 1 , 2 on square 2, 4 on square 3  and so on. This is a geometric sequence with the nth term = a1r^(n - 1) where a1 = first term , r = common ratio.

So the 20th term  (the number of grains on square 20) would be

 1*2^(20-1)  = 524,288.

Total =   a1 * (r^n - 1) / (r - 1)

=  (2^20 - 1)  / 2-1 =  1.048,575

7 0
2 years ago
Scott wanted to bjy a sofa which originally cost $500.Store A was selling it for 20% off plus 6.5% sales tax.Store B was selling
USPshnik [31]

Answer:

Store A offers the least amount for the sofa

Step-by-step explanation:

Cost of sofa =$500

For store A

Discount =20% off

The amount of the discount is

=20/100*500

=0.2*500

=$100

6.5% sales tax

The amount of tax is

=6.5/100*500

=0.065*500

=$32.5

Total cost of the sofa

=500-100+32.5

=400+32.5

=$432.5

For store B

Discount =30% off

The amount of the discount is

=30/100*500

=0.3*500

=$150

Shipping fee $85

Total cost of sofa

=500-150+85

=350+85

=$435

3 0
2 years ago
Macy's department stores markup men's cologne 63% on cost for an 8 ounce bottle. A bottle of cologne costs Macy $23.00. What is
lozanna [386]
Use ratio and proportion
$23/$x=63%/100%
cross multiply
63x= 2300
divide
x= $ 37.50 selling price

hope this helps
8 0
2 years ago
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