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dimaraw [331]
3 years ago
13

a pattern has 25 blue triangles to every 15 yellow triangles what is the ratio of yellow triangles to Blue triangles

Mathematics
1 answer:
Arada [10]3 years ago
5 0
The ratio of 15 yellow triangles to 25 blue triangles is 15 to 25.
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Involving the selection of frozen dinners. Assume that there are 15 frozen dinners: 7 pasta, 6 chicken, and 2 seafood dinners. T
zzz [600]

The probability that at least 2 of the dinners selected are pasta dinners will be 0.8181...

<u><em>Explanation</em></u>

Pasta dinners = 7 , Chicken dinners = 6 and Seafood dinners = 2  

The student selects 5 of the total 15 dinners. So, total possible ways for selecting 5 dinners =^1^5C_{5} =3003

For selecting at least 2 of them as pasta dinners, the student can select 2, 3, 4 and 5 pasta dinners from total 7 pasta dinners.

So, the possible ways for selecting 2 pasta dinners =^7C_{2}*^8C_{3} =1176

The possible ways for selecting 3 pasta dinners =^7C_{3}*^8C_{2} =980

The possible ways for selecting 4 pasta dinners =^7C_{4}*^8C_{1} =280

The possible ways for selecting 5 pasta dinners =^7C_{5}*^8C_{0} =21

Thus, the probability for selecting at least 2 pasta dinners =\frac{1176+980+280+21}{3003} =\frac{2457}{3003} =0.8181.....

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4 years ago
Simplify 2452.5<br> Plz help me
Aleks04 [339]

Answer:

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8 0
3 years ago
A circular sector has a central angle of 22.5° and a radius of 4 ft.
Taya2010 [7]

Answer:

1.6

Step-by-step explanation:

I used an arc length calculator

4 0
2 years ago
Which percent is eguivalent to 2.5?<br><br> 1)2.5%<br> 2)25%<br> 3)250%<br> 4)2,500%
sertanlavr [38]

Answer: 250%

since, 100% = 100/100

250% = 250/100

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
1. In the figure below, Line ET intersects with Line MN at B. The measure of Angle
PIT_PIT [208]

Answer:

<NBE = 120°

Step-by-step explanation:

From the above attachment,

<KMB = 30°

<KBT = 90° (perpendicular angles are equal to 90°)

<MBE = x

<KMB + <KBT + <MBE = 180° (angles on a straight line are equal to 180°)

30° + 90° + <MBE = 180°

120° + <MBE = 180°

Solve for <MBE

<MBE = 180° - 120°

<MBE = 60°

<MBE = <TBN (vertical angles are congruent, making them equal to each other).

<TBN = 60°

<TBN + <NBE = 180° (angles on a straight line are equal to 180°)

60° + <NBE = 180°

<NBE = 180° - 60°

<NBE = 120°

Angle <NBE is equal to 120°

6 0
3 years ago
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