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nordsb [41]
3 years ago
12

2 ( n + 3 ) + 5 ( 2n + 4 ) = 62 * 2 points 3 5 7 -8

Mathematics
1 answer:
Sophie [7]3 years ago
8 0

Answer:

2 ( n + 3 ) + 5 ( 2n + 4 ) = 62 *

2 points

3

5

7

-8

Step-by-step explanation:

n+3)+5.2=(n+3)+5=n+82n+4=62=n=29v

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Can someone help me with 55. Please!!!
atroni [7]
Area of a rectangle = length times width

So, 3/4*1/4= 3/16 yards^2
8 0
3 years ago
jenna is running a trail that is 8 and 4/7 miles long. if she finished 5/9 of the distance about how far has she run?
Julli [10]
Trail is 8 and 4/7
she ran 4/7 of it


convert 8 and 4/7 to improper for ease
8 and 4/7=8+4/7=56/7+4/7=60/7
4/7 of 60/7=
4/7 times 60/7=
240/49=
196/49+44/49=
4 and 44/49

she ran 4 and 44/49 miles



3 0
3 years ago
Jordan measures the side lengths of a triangular piece of sheet metal. The side lengths are 156 cm, 133cm, and 205 cm. Verify th
Alexxx [7]

Answer:

see the explanation

Step-by-step explanation:

we know that

If the triangular piece of sheet metal is a right triangle, then the side lengths must satisfy the Pythagorean Theorem

so

c^2=a^2+b^2

where

c is the hypotenuse (the greater side)

a and b are the legs of triangle

we have

c=205\ cm\\a=156\ cm\\b=133\ cm

substitute

205^2=156^2+133^2

42,025=24,336+17,689

42,025=42,025 ----> is true

so

The side lengths satisfy the Pythagorean Theorem

therefore

The triangular piece of sheet metal is a right triangle

8 0
4 years ago
Roshanda was curious if students in her class would complete a maze faster if fast-paced music was playing in the background. Sh
ch4aika [34]

Answer: (E) Not necessarily, because this wasn't an experiment

Step-by-step explanation:

As much as the results would suggest that the fast-paced music was responsible for the faster finishing time, this conclusion cannot be authoritatively made because this was not technically an experiment but rather a test to satisfy curiosity.

An experiment is planned and is scientific. It has more stringent requirements that ensure causation that Roshanda did not meet before she engaged in this trial so we cannot say for a fact that her findings are objective.

6 0
3 years ago
Read 2 more answers
Mathsgenie.co.uk
ioda

Answer:

180

Step-by-step explanation:

For each boy you choose, you choose one of the 15 girls.

This is the counting principle.

12 * 15 = 180

Answer: 180

6 0
3 years ago
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