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sleet_krkn [62]
3 years ago
14

Someone help!!! asap!!!!

Mathematics
1 answer:
pentagon [3]3 years ago
4 0

Answer:

Hope it helps plz give BRAINLIES! :D

Step-by-step explanation:

$80

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The perimeter of (the distance around) ABCD is 66, and DC is twice as long as CB. How long is AB?
ArbitrLikvidat [17]

Answer:

AB=22\ units

Step-by-step explanation:

we know that

In this problem ABCD is a rectangle

so

DC=AB

BC=AD

Let

BC ---> the length of rectangle

DC ---> the width of rectangle

we know that

The perimeter of rectangle is equal to

P=2(BC+DC)

we have

P=66\ units

so

66=2(BC+DC)

simplify

33=BC+DC ----> equation A

DC=2BC ----> equation B

substitute equation B in equation A

33=BC+2BC

Solve for BC

Combine like terms

33=3BC

Divide by 3 both sides

BC=11\ units

<em>Find the value of DC</em>

DC=2BC ----> DC=2(11)=22\ units

Remember that

DC=AB

therefore

AB=22\ units

3 0
2 years ago
Help! Click to see question!
EleoNora [17]

Answer:

B.

Step-by-step explanation:

Both equations use x squared

7 0
3 years ago
Read 2 more answers
The difference in the x-coordinates of two points is 3, and the difference in the y-coordinates of the two points is 6. What is
oksano4ka [1.4K]
It Does Not Matter Where You Put The Line, As The Slope Stays The Same. So, We Can Say That One Point Is (3,0)
(3,0) and (6,6)
So, The Slope Is 2.
6 0
3 years ago
Read 2 more answers
If the price of a purse went from $45 to $54, what was the percent of the change?
NARA [144]
I think the answer is 17%
7 0
3 years ago
It took a race car driver 3 hours and 15 minutes to go 500 miles. What was his mean rate of speed, to the nearest tenth of a mil
WINSTONCH [101]
In order to calculate rate or average speed you divide miles by time

I got 153.8 by dividing 500 by 3.25 (the .25 is because 15 minutes is 1/4 of 60) hope this helped!!
4 0
3 years ago
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