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Romashka-Z-Leto [24]
3 years ago
11

Solve this problem using estimation.

Mathematics
2 answers:
Alex Ar [27]3 years ago
5 0
For Ramona to know how much she expects to pay for the carpet she is ordering, she first needs to know how many square foot the the room has.
In getting the area of the room, you multiply one side with the other,
in equation,

19.5 ft x 41.6 ft = 811.2 sq ft.

Then if the carpet costs $9.50 per sq ft, you simply multiply it the area of the room
in equation,

$9.50/ sq ft. x 811.2 sq ft, cancelling out the unit of sq ft
the answer would be $7,706.4
Katarina [22]3 years ago
3 0

Answer:

Step-by-step explanation:

For Ramona to know how much she expects to pay for the carpet she is ordering, she first needs to know how many square foot the the room has.

In getting the area of the room, you multiply one side with the other,

in equation,

19.5 ft x 41.6 ft = 811.2 sq ft.

Then if the carpet costs $9.50 per sq ft, you simply multiply it the area of the room

in equation,

Read more on Brainly.com - brainly.com/question/1414540#readmore

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Uhhhhhhh I don't really know look on quizlet
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What is the slope of the line that passes through the points: (5, -3) and<br> (-1,6)
elena55 [62]

Answer:

-1/2

Step-by-step explanation:

https://www.calculator.net/slope-calculator.html

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3 0
2 years ago
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If f(x) = 1-x^2+x^3, then f(-1)=
Yuri [45]

Answer: -1

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1-(-1^2)+(-1^3) = 1-1+(-1)= -1

7 0
2 years ago
Mia can run at a rate of 360 feet per minute. Approximately how many minutes would she take to run a 500-yard stretch of road an
tankabanditka [31]

Step-by-step explanation:

since we know, she can run 360 ft per minute, and we want to know how many minutes she would need to run 500 yards we need to find out how often 360 ft fit into 500 yards.

so,

500 yards / 360 ft

how can we make this division ?

help is given to us by taking us that 1 yard = 3 ft.

aha !

so, 500 yards = 500×3 ft = 1500 ft

therefore, our task now looks like

1500 ft / 360 ft

and this we understand and can do, right ?

1500 / 360 = 150/36 = 75/18 = 4 3/18 = 4 1/6 minutes

the closest answer option is therefore 4.2, meaning she would take about 4.2 minutes to run 500 yards.

7 0
2 years ago
Charlotte’s weekly paycheck is based on the number of hours worked during the week and on the weekend. If she works 13 hours dur
Gelneren [198K]
I am setting the week hourly rate to x, and the weekend to y.  Here is how the equation is set up:

13x + 14y = $250.90
15x + 8y = $204.70

This is a system of equations, and we can solve it by multiplying the top equation by 4, and the bottom equation by -7.  Now it equals:

52x + 56y = $1003.60
-105x - 56y = -$1432.90

Now we add these two equations together to get:

-53x = -$429.30 --> 53x = $429.30 --> (divide both sides by 53) x = 8.10.  This is how much she makes per hour on a week day.

Now we can plug in our answer for x to find y.  I am going to use the first equation, but you could use either.

$105.30 + 14y = $250.90.  Subtract $105.30 from both sides --> 14y = $145.60 divide by 14 --> y = $10.40

Now we know that she makes $8.10 per hour on the week days, and $10.40 per hour on the weekends.  Subtracting 8.1 from 10.4, we figure out that she makes $2.30 more per hour on the weekends than week days.
7 0
3 years ago
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