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Serga [27]
3 years ago
7

"The perimeter of a swimming pool is 126 feet. The difference between the length (x) and width (y) of the pool is 39 feet. What

are the dimensions of the pool?"
I'm supposed to figure this out using substitution but I'm not sure how, and any help at all is appreciated!
Mathematics
1 answer:
Natasha2012 [34]3 years ago
4 0
So we know the perimeter of a rectangle is two lengths plus two widths. We can conclude that 2x+2y=126. It also tells us x-y=39. Then use substitution from there
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Write a real-world problem that could be represented by the inequality. 3x + 6 > 27
Dafna1 [17]
Three x plus six is greater than twenty-seven
6 0
3 years ago
Please help to answer this question I’m really confused
igor_vitrenko [27]

Answer:

It would be B!

Step-by-step explanation:

D has an obtuse angle, so it can be eliminated.

C has angles that are not vertical, but rather adjacent. Same goes for A!

Hope this helps!

3 0
3 years ago
A merchant wishes to blend 200 pounds of coffee worth $3.20 a pound from two mixtures: one at $3.00 a pound and the other at $3.
Fofino [41]
X pounds of $3
y pounds of $3.25

x+y = 200

300x + 325y = 320*200
300x + 325y = 64000

x+y =200
300x +325y =64000

Solve by eliminating

Multiply top one w/-300

-300y =60000
325y=64000
25y = 4000

y= 160 then

x + 160= 200

x = 40


So the mixture has;

40 pounds of $3 coffee
160 pounds of $3.25 coffee






8 0
4 years ago
PLEASE HELP!!!!! 13. PTS+ PLEASE SUPER EASY
Brums [2.3K]

Answer:

1. A. Set the angle and arc measures equal.

2. B. major arc

3. B. Multiply the angle measure by 2.

4. A. minor arc

Step-by-step explanation:

1. If the intercepted arc is made from a central angle then angle of arc is equal to the central angle

2. 190 is a bigger angle than 170(angle of the remaining arc)

   Therefore it is a major arc.

3.If the intercepted arc is made from a inscribed angle, then the angle of arc is double of the inscribed angle.

4. 115 < 245

   Therefore it is a minor arc.

3 0
3 years ago
Please help me! This is due tomorrow and I really need some help! Thank you.
Archy [21]

Answer:

b. it neither likely nor unlikely the child will be a boy

Step-by-step explanation:

Because the probability of the child being a girl is 0.5, or half, this means the probability of it being a boy is also 0.5 or half. This means that it cannot be either likely nor unlikely

4 0
3 years ago
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