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sergejj [24]
3 years ago
14

PLEASE HELPPPP 20 POINTSSS

Mathematics
1 answer:
shusha [124]3 years ago
4 0

Answer:

3/4

Step-by-step explanation:

9 blue coins and 3 red coins

12 coins

P(blue) = number of blue coins / total coins

            = 9/12 = 3/4

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Today Ian wants to run less than 7/12 mile. Write a fraction with a denominator of 4 to respresent a distance that is less than
Mkey [24]

Lan wants to run less than 7/12 miles. It says to find out a fraction with a denominator of 4 and which is less than 7/12.

Let's assume the required fraction to be x/4 such that x/4 is less than 7/12.

\frac{x}{4} < \frac{7}{12} \\\\ 3*\frac{x}{4} < \frac{7}{12}*3 \\\\ \frac{3x}{4} < \frac{21}{12} \\\\ \frac{3x}{4} < \frac{7}{4} \\\\ 3x < 7

So we must have multiples of 3's that should be less than 7, we have only two choices 3 < 7 or 6 < 7.

It means x = 1 or x = 2, and the required fraction would be 1/4 or 2/4.

2/4 is simplified to 1/2 and the question says to have denominator 4.

Hence, final answer is 1/4

5 0
2 years ago
Trevor tutors French for $12 an hour and scoops ice cream for $8 an hour. He is going to work 20 hours this week. At least how m
PilotLPTM [1.2K]

Answer:

Step-by-step explanation:

Let M = total amount of money earned

M = 12x+8y

To make more than $190, the equation is:

190<12x+8y

Since Trevor is going to scoop ice cream for 20 hours, the equation is:

190<12x+8(20), which simplifies to 190<12x+160.

Isolate x to find the amount of hours that Trevor needs to tutor.

190-160<12x

30<12x

30/12<x

2.5<x

Trevor must tutor for more than 2.5 hours to make more than $190.

4 0
3 years ago
Read 2 more answers
3x + 4 = 8x – 11 does anyone know how to do this ​
Nataly [62]

Answer:

x = 3

Step-by-step explanation:

Subtract 8x from both sides.

3x+4−8x=8x−11−8x

−5x+4=−11

Subtract 4 from both sides.

−5x+4−4=−11−4

−5x=−15

Divide both sides by -5.

−5x

−5

=

−15

−5

x=3

8 0
2 years ago
Read 2 more answers
What angle relationship describes VQR and QRW?
Vlad [161]

Answer: alternate interior angles

Step-by-step explanation:

Got it Right on the test. :)

8 0
3 years ago
David's last equation to solve is x/100+3/100=8/100. Write and solve an equivalent equation with easier numbers that would give
JulijaS [17]
\sf\dfrac{x}{100}+\dfrac{3}{100}=\dfrac{8}{100}

Subtract 3/100 to both sides:

\sf\dfrac{x}{100}=\dfrac{5}{100}

Cross multiply:

\sf100x=500

Divide 100 to both sides:

\sf~x=5

Or we could just multiply both sides of the equation by 100, to give us:

\sf~x+3=8

Subtract 3 to both sides:

\sf~x=5
3 0
3 years ago
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