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Daniel [21]
3 years ago
7

A bag contains 9 red marbles and 18 blue marbles. If a representative sample contains 2 red ​marbles, then how many blue marbles

would you expect it to​ contain?
Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

4

Step-by-step explanation:

9 x 2 Is 18 so you would multiply 2 x 2 as well

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Plz help with number 1
Trava [24]

In an isosceles triangle, the base angles are congruent. The third angle is called the vertex angle.

Here, the vertex angle is <A.

Therefore, m<C = m<B.

m<A = 3m<B + 20

m<A + m<B + m<C = 180

3m<B + 20 + m<B + m<B = 180

5m<B + 20 = 180

5m<B = 160

m<B = 32

m<C = m<B = 32

Answer: m<C = 32 deg

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3 years ago
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ivann1987 [24]
If we rewrite it as y=mx+d (which can be taken from here from subtracting ax and c from both sides, then dividing b, resulting in y=(-a/b)(x)-c/b. We can then substitute -a/b for m and -c/b for d), if d=0, then we have m as a constant and as we add a specific number to y (that number being m) every time the x value increases by 1, it therefore forms a straight line. If d is not 0, then we simply add d to every single number - this is still a straight line due to that we still add a specific number to y every time x increases by 1 every single time
4 0
3 years ago
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poizon [28]

Answer:

D

Step-by-step explanation:

4 people = 15 days

1 people = 15/4 = 3.75

so, 6 people = 3.75 × 6

= 22.5

7 0
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3 years ago
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Vikki [24]

Step-by-step explanation:

f(-5) goes through y=-9

So, f(-5) = -9

6 0
2 years ago
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