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laila [671]
3 years ago
8

Traci has four blue pens and three red pens. She has twice as many black pens as blue pens. What fraction represents the number

of blue pens out of the total number of pens
Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0
The total is 4+3+8=15
The answer would be 4/15 because there are 4 blue pens
Kitty [74]3 years ago
3 0
4 blue, 3 red
twice as many black pens as blue pens.....black pens = 2(4) = 8

so there are : (4 + 3 + 8) = 15 total pens

fraction of blue pens to total pens = 4/15
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NISA [10]

An angle bisector divides an angle into two equal halves.

The measure of angle \angle CPD is 70 degrees

The complete question is an illustrates the concept of angle bisector;

Where:

\angle RPD = 140^o, and line PC bisects \angle RPD

Because line PC bisects \angle RPD, then it means that the measure of RPD is twice the measure of CPD:

So, we have:

\angle RDP = 2 \times \angle CPD

Substitute \angle RPD = 140^o

140^o = 2 \times \angle CPD

Divide both sides by 2

70^o = \angle CPD

Apply symmetric property of equality:

\angle CPD = 70^o

Hence, the measure of angle \angle CPD is 70 degrees

Read more about angle bisectors at:

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5 0
3 years ago
Please help me. Please....
Nadusha1986 [10]

Answer:

20

Step-by-step explanation:

1/2(a+b)=180

1/2(6+12)=18

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Novay_Z [31]
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Arturiano [62]

Given:

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