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Tems11 [23]
3 years ago
12

The sum of eight times a number and fifteen is seven.Find the number. How do I work this out like these?

Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0
(8x n) + 15=7 : 7-15= (-8), (-8)divided by 8= (-1) : n=(-1) : When you have problems like this it helps to work them backwards. Hope you understand this.
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What is 195 squared to the nearest integer
densk [106]
The square root of 195 is 13. 195 squared (195×195) is 38,025. I do not know which way you needed it but I put both situations just in case.
3 0
3 years ago
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Trevon is helping his sister study for her geometry test while staying at a hotel.
Serhud [2]

Option (C) -: The hotel floors are parallel to each other, and the elevator moves in a path that is perpendicular to them both.

<h3>What is parallel and perpendicular ?</h3>

In geometry two lines are parallel to each other when they have no intersecting point and the distance between them is constant.

Two lines are perpendicular if they have an intersecting point and they intersect each other at at 90°.

From the given figure we can observe the distance between the floor ceiling of 3rd and 6th floor is constant therefore they are parallel to each other.Now if we imagine the elevator going up and down an imaginary line (meeting line of two elevator doors) would intersect them at an angle of 90°.

∴The hotel floors are parallel to each other, and the elevator moves in a path that is perpendicular to them both.

Learn more about parallel and perpendicular here :

brainly.com/question/16853486

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5 0
1 year ago
Add the two expressions. -y - 5 and 3y + 2
Alika [10]
<span> -y - 5 + 3y + 2

= 2y - 3

-----------------------</span>
5 0
3 years ago
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What is the ratio of 24 packs 2 for $9
topjm [15]
24 cans = 2 cans
$x                $9
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5 0
3 years ago
Let f(x)<br> -4x - 6 and g(x) = 3x + 5. Find (fºg)(-3).
Allushta [10]

Answer:

Step-by-step explanation:

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f(-14)= -4(-14) - 6 = 56 - 6 = 50

7 0
3 years ago
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