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4 years ago

Anybody know how to do this?? Thank u sm I really don’t know what I’m doing!!!❤️

Mathematics

2 answers:

kow [346]4 years ago

6 0

Answer:

find least common multiplier, 2a

3/a x 2a+5/2a x 2a=1/2 x 2a

simplify, 11=a

Answer, a=11

hope this helped ;D

gtnhenbr [62]4 years ago

5 0

Answer:

a=11

Step-by-step explanation:

3/a + 5/2a = 1/2

Determine the range

3/a +5/2a = 1/2 , a=0

Write all numerators with common denominators above 2a

11/2a = 1/2

11/2a = 1/2 Simplify the equation using cross-multiplication

22=2a Switch sides of the equation

2a=22 divide both sides of the equation by 2

a=11 is your answer

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John was traveling 1700 feet in 20 seconds. How fast was the car going in miles per hour

bagirrra123 [75]

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612000

Step-by-step explanation:

(20*3)*60=360

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4 years ago

strojnjashka [21]

Answer:

Step-by-step explanation:

3x - 4y = 13 (1)

2x + y = 5 (2)

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3x - 4y = 13

4(2x + y = 5) (2) times 4

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3x - 4y = 13

8x + 4y = 20

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3 years ago

True or false all odd numbers are divisible by 3

Katen [24]

False

59/3= 19.666667

8 0

3 years ago

Read 2 more answers

Among 500 freshmen pursuing a business degree at a university, 315 are enrolled in an economics course, 213 are enrolled in a ma

scoundrel [369]

Answer:

Step-by-step explanation:

Given that among 500 freshmen pursuing a business degree at a university, 315 are enrolled in an economics course, 213 are enrolled in a mathematics course, and 123 are enrolled in both an economics and a mathematics course.

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3 0

4 years ago

The manufacturer of a fertilizer guarantees that, with the aid of the fertilizer, 80% of planted seeds will germinate. Suppose t

olga nikolaevna [1]

The Probability of that more than 7 of them germinate is 0.2948.

<h3>What is Probability?</h3><h3>Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1.</h3>

We are to determine the probability that more than 7 of 10 seeds (i.e. 8, 0r 9 0r 10) germinate.

The probability that all 10 seeds germinate is equal 0.80¹⁰= 0.1073 = 10.73%.

The probability that only the first (only the second, etc ) seed does not germinate is equal 0.20 X 0.80⁹= 0.0268 = 2.68%.

The probability that 6 seeds germinate is the sum of the probabilities that only the first seed does not germinate, only the second one does not germinate, etc, and equals to 10 X 0.0268 = 0.268 = 26.8%.

The total probability that more than 7 of 10 seeds germinate is the sum of the probabilities that 10 seeds germinate and that 7 seeds germinate, i.e. 2.68 % + 26.8 % = 29.48 %.

Thus, The Probability of that more than 7 of them germinate is 0.2948.

Learn more about Probability from:

brainly.com/question/11234923

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3 0

2 years ago