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natka813 [3]
3 years ago
14

PLEASE HELP 30 POINTS TO WHOEVER HELPS I NEED IT QUICK PLEASE HELP

Mathematics
2 answers:
Eddi Din [679]3 years ago
8 0
Uhhhhh the correct answer is 27831.05 I think...
Brut [27]3 years ago
3 0

Answer:

Hi there!

The correct answer is:

a. 27831.05

Step-by-step explanation:

Since they gave you the equation for the line of best fit: y = 1.9x + 21

a. solve for x: 52900= 1.9x + 21

minus 21 on both sides to get 1.9x = 52879

then divide 1.9 on both sides to get x= 27831.05

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Tom was driving 20.3 meters per second in a 45 mile per hour zone. Was Tom speeding? Explain using a unit conversion as well as
My name is Ann [436]

Answer:

Tom was speeding.

Step-by-step explanation:

The driving speed of Tom = 20.3 meters per second.

Speed allowed in the zone = 45 miles per hour zone.

Since the unit of speed allowed is given in miles per hour but the speed of tom is given in meters per second. So, first, we have to convert the meter per second into mile per hour then we can compare and find that Tom is speeding or not.  

1 mile = 1609.34 meters

1 hour = 3600 second

Now convert 20.3 into mile per hour.

20.3 meters per second. = (20.3 / 1609.34)*3600 = 45.40981 mile per hour.

Since Tom’s speed is more than the allowed speed so he is speeding.

7 0
3 years ago
In a Black Friday sale, if you buy 5 video games for $ 39.99 each, you get 1 free. After the offer, how much does each video gam
Kruka [31]

Answer:

$200.00

Step-by-step explanation:

Round the $39.00 to $40.00 then add it all together because you can't forget the taxes.

8 0
2 years ago
Read 2 more answers
The price of an item yesterday was $115. Today, the price rose to $161. Find the percentage increase
mamaluj [8]

Answer:

14%

Step-by-step explanation:

161/115 = 1.4 which you times by 100

4 0
3 years ago
The width of a rectangle is 7 meters greater than its length. If the area of the rectangle is 170 square meters, write the quadr
soldier1979 [14.2K]
Since x is the length, then x+7 has to be the width.
The area of a rectangle can be found via the formula :
A = length * width
So if we replace the area with the given number (170) and the length, and width, with what we assumed, we get..
170 = x * (x+7)
[which is.. ]
170 = x^2 +7x
0 = x^2 +7x - 170

And that is the answer.
4 0
3 years ago
Triangle PQR is similar to triangle STU, where P, Q, and R correspond to S, T, and U,
Elden [556K]

Answer:

TU=36

Step-by-step explanation:

use the side lengths of PQR to determine the proportionality of the two triangles. 9/2=4.5 so, multiply 8 by 4.5 to find TU.

6 0
3 years ago
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