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LenaWriter [7]
2 years ago
10

Help please !! explain if can too? :)

Mathematics
1 answer:
pychu [463]2 years ago
8 0

Answer:

29 because lines ac and bd are perpendcular and equal.

Step-by-step explanation:

im not fully sure my explanation is good enough

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At a rock concert, the ratio of girls to boys is 3:7. If there are 360 more boys than girls, how many girls are at the concert?
bixtya [17]
You could understand the ration as parts: the total number of parts was 3+7=10.

So girls were 3/10 parts and boys 7/10 parts. The difference was 7-3=4 parts. this difference is equal to 360, so each part is 90 (4*90 =360).

so girls are "3 parts" and each part is 90, then the number of girls is 3*90=270.
4 0
3 years ago
James Ran 1/4 of a mile in the morning and then ran 2/8 of a mile that evening what was the distance James ran
Setler79 [48]

Answer:

1/2

Step-by-step explanation:

1/4=2/8

2/8+2/8=4/8=1/2

4 0
3 years ago
Emma went to a salon to get her hair cut. The price of the haircut is $65. She wants to leave a 20% tip. What is the total amoun
Rudiy27

Answer:

She should leave a total of $78.

Step-by-step explanation:

To find this, we first need to find the tip amount. We can do this by multiplying the total by the tip percentage.

$65 * 20% = $13

Now that we have that, we need to add it to the cost.

$65 + $13 = $78

8 0
2 years ago
Need help, please. In a triangle find x
saul85 [17]
Triangles add up to 180. So add up the two angles given, and subtract that from 180. That will be x!
3 0
2 years ago
What type of slopes do parallel lines have? And, What type of slopes do perpendicular lines have?
Goshia [24]

parallel lines have the same slope

perpendicular lines have the negative reciprocal

ie 3--------> -1/3

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2 years ago
Read 2 more answers
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