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Andreas93 [3]
3 years ago
10

Genevieve is buying a car audio system that consists of a stereo, speakers, and amplifiers. She is choosing between 5 types of s

tereos and 2 types of amplifiers. If she has a total of 30 choices, how many types of speakers must there be?
3
6
10
20
Mathematics
2 answers:
Gnesinka [82]3 years ago
8 0
3 because 2 times 5=10 and 30 divided by 10=3
Nastasia [14]3 years ago
8 0

Answer:

3

Step-by-step explanation:

(A)

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A line has the equation 3x ? 4y = 1. Choose the equation of a line that is parallel to the given line.
cupoosta [38]

Answer:

Find a line which also has 3/4 as the slope or 3x - 4y in standard form.

Step-by-step explanation:

If the line is 3x - 4y = 1 then the line which is parallel will have the same coefficients of x and y. Parallel lines never cross and to ensure this have the same slope. The slope is a ratio which can be solved for in an equation using the coefficients of x and y. Here the slope is:

3x - 4y = 1

-4y = -3x + 1

y = 3/4x - 1/4.

Find a line which also has 3/4 as the slope or 3x - 4y in standard form.

7 0
3 years ago
Read 2 more answers
Some people say Mauna Kea is a taller mountain than Mt. Everest, because its total under sea and above sea level height is
ExtremeBDS [4]

Answer:

Mauna Kea has from the base that is to say the deepest 10 km of height that is to say 10,000 m which is equivalent to being higher than Mount Everest.jj

Step-by-step explanation:

 The main reason why we could say that Mauna Kea is the highest mountain, even surpassing Mount Everest, is because of its altitude if we compare them we see the difference; for example Mauna Kea from its base that is to say from the deepest the ocean measures 10,000 m of altitude, on the other hand the Mount Everest has an altitude of 8848 meters (29,029 ft) above sea level, that is to say from its base it measures 8848 m altitude.

7 0
3 years ago
Here is the last answers...
Zarrin [17]

Step-by-step explanation:

You are finding the whole

0.7 × 20 = 14

or

70% of 20 = 7/10 x 20 = 7/10 x 20/1 = 140/10

140/10

140/10 = 14/1

The minimum number of questions he need to do are 14

I'm not sure if you are finding the part or the whole

let me know if im wrong

5 0
3 years ago
Read 2 more answers
Helps me solve this problem please
AysviL [449]

Answer:

The slope is -3/7 so B

Step-by-step explanation:

Just turn this into slope-intercept form.

what you do is subtract 3x so that it's moved to the right side.

It should look like this -7y = 12 - 3x

Then just divide all numbers by 7 so everything is simplified

It should look like this y = -3/7x - 12/7

pls mark brainliest because i didn't waste you time lol

8 0
3 years ago
5(z+4)+5(2−z) simplyfied
romanna [79]

Answer:

5(z+4) + 5(2-z) =

5z + 20 + 10 -5z = 30

3 0
3 years ago
Read 2 more answers
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