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irina1246 [14]
3 years ago
15

There are blue, red and green pencils in the box—20 pencils total. There are 6 times more green pencils than blue pencils. There

are fewer red pencils than green pencils. How many pencils do you need to take out of the box in order to get at least one red pencil among them?
Mathematics
1 answer:
lana [24]3 years ago
5 0

Answer:

You have to take 15 pens to get at least one red pencil.

Step-by-step explanation:

If there were one red and 6 green pens, there would be more red than green pens.

If there were 3 or more blue and thus 18 or more green pens, the number of pens would be over 20.

So there must be 2 blue, 12 green and thus 6 red pencils. So you have to take at least 15 pens to be sure that you got a red one.

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Based on the graph shown to the right, whose phones cost varies directly with the amount of time spent talking?
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8 0
3 years ago
Read 2 more answers
Help Please!!<br> What is the value of a?<br><br> Enter your answer in the box.<br><br> a =
Talja [164]

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

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6 0
2 years ago
Find the value of X
olchik [2.2K]
<h3>Answer:  112</h3>

=========================================================

Explanation:

The angle adjacent to the 146 degree angle is 180-146 = 34 degrees.

In other words, the angles 34 and 146 combine to 180. These angles are supplementary.

The tickmarks on this triangle tell us it is isosceles. The angles opposite the congruent sides are congruent angles. So the unmarked interior angles (not marked x) are 34 degrees each.

Now use the fact that any triangle has its interior angles always add to 180

x+34+34 = 180

x+68 = 180

x = 180-68

x = 112

5 0
2 years ago
16. An employee has to pay 15.5% in taxes. If
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Answer:

379.75

Step-by-step explanation:

15.5 x 2450

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