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3 years ago

There is a jar of jellybeans on Mr. Schidrich's desk. 40% of the jellybeans are red. If

Mathematics

1 answer:

pantera1 [17]3 years ago

5 0

Answer:

22 Red Jellybeans

Step-by-step explanation:

Out of the 55 jellybeans in the jar, 40% of them are red, which means you have to do 40% of 55 to see which ones are red. We know 10% of 55 is 5.5, then multiply 5.5 x 4 to get 22 is 40% of 50 hope this helped :)

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Of 100 students,65 are members of a mathematics club and 40 are members of a physics club. if 10 are members of neither club the

alexandr1967 [171]

a. 15 students are members of both clubs

b. 50 students only are members of the mathematics club

c. 25 students only are members of the physics club

Step-by-step explanation:

The given is:

There are 100 students
65 are members of a mathematics club
40 are members of a physics club
10 are members of neither club

We need to find how many students are members of

a. both clubs?

b. only mathematics club

c. only physics club

∵ The total number of students = 100

∵ 10 are members of neither club

- Subtract 10 from 100 to find the members of the mathematics

club or the physics club

∵ 100 - 10 = 90

∴ There are 90 members of the mathematics club or physics club

∴ n(mathematics or physics) = 90

∵ 65 students are members of a mathematics club

∵ n(mathematics) = 65

∵ 40 students are members of a physics club

∴ n(physics) = 40

∵ n(mathematics or physics) = n(mathematics) + n(physics) - n(both)

∴ 90 = 65 + 40 - n(both)

∴ 90 = 105 - n(both)

- Add n(both) to each side

∴ n(both) + 90 = 105

- Subtract 90 from each side

∴ n(both) = 15

∴ 15 students are members of both clubs

a. 15 students are members of both clubs

∵ 65 students are members of the mathematics club

∵ 15 of them are members of the physics club

∴ n(mathematics only) = 65 - 15 = 50

∴ 50 students only are members of the mathematics club

b. 50 students only are members of the mathematics club

∵ 40 students are members of the physics club

∵ 15 of them are members of the mathematics club

∴ n(physics only) = 40 - 15 = 25

∴ 25 students only are members of the physics club

c. 25 students only are members of the physics club

Learn more:

You can learn more about word problems in brainly.com/question/8907574

#LearnwithBrainly

5 0

3 years ago

Help please!! I'm timed. <br><br>

const2013 [10]

Answer: 42

explanation : 90-48=41

6 0

3 years ago

In 1626, the Dutch bought Manhattan Island, now part of New York City, for $24 worth of merchandise. Suppose that, instead, $24

Radda [10]

2008 - 1626 -= 382

24 x (1.305)^382

= 12,229,955,10

Hope this helps

5 0

3 years ago

Read 2 more answers

If Jaime is riding at 14 miles per hour and Cori is riding at 0.40 km per minute, how far will each of them bike in two hours? 1

natali 33 [55]

Answer:

Jaime: $d = 45.08\ km$

Cori: $d = 48km$

Step-by-step explanation:

Given

$V_1 = 14\ miles/hour$

$V_2 = 0.40\ km/hour$

$Time\ (t)\ = 2\ hours$

Solving Jaime Distance;

$d = vt$

Substitute values for v and t

$d = 14\ miles/hour * 2\ hours$

$d = 28\ miles$

Convert to kilometer

$d = 28 * 1.61\ km$

$d = 45.08\ km$

Solving Cori Distance:

$d = vt$

Substitute values for v and t

$d = 0.40km/min * 2\ hours$

Convert hours to minute

$d = 0.40km/min * 2 * 60\ min$

$d = 0.40km * 2 * 60$

$d = 48km$

3 0

3 years ago

in a bag of containing 32 white marbels, 18 blue marbels and 10 red marbels , if it take one randomly , change of getting the bl

Ilia_Sergeevich [38]

18/60 which is equal to 3/10

So you just need to put it into proportions which is blue to total. The total is 60 and there is 18 blue. Then you only need to simplify.

8 0

3 years ago

Read 2 more answers