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Cerrena [4.2K]
3 years ago
7

Out of 1200 people polled, 30% do not like radio, and 10% of the people who do not like radio also do not like music. How many p

eople polled do not like both radio and music? Thank you :D
Mathematics
1 answer:
solmaris [256]3 years ago
7 0

Answer:

36

Step-by-step explanation:

First you need to find 30% of 1200. 30% of 1200= 30/100 * 1200 which is 360. Then you find ten percent of 360, which is basically 10/100*360 which is 36, so 36 is the answer.

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3x-5y=13<br> x-2y=5<br> with solution by elimination.
Lisa [10]
X=1 y=-2 I am sure I did it
6 0
2 years ago
Marco can finish a jigsaw puzzle in 3 hours. Working together with Cliff, it takes them 1 hour. How
vovikov84 [41]

Macro can finish the puzzle in 3 hours. We can say that her speed for working is 1/3 or 1/3 puzzle per hour.

Now if they work together, this turns into 1 puzzle per hour.

That must mean that Cliff would be doing the other 2/3 of the puzzle while Macro does his 1/3 in that hour. If Cliff has a speed of doing them 2/3 per hour. Then it would take 1 and a half hour to finish 1 whole puzzle.

3 0
2 years ago
Write an addition sentence that helps you solve 15-9.​
Lemur [1.5K]

Answer:

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8 0
2 years ago
Which graph shows the solution to the system of linear inequalities? x – 4y &lt; 4 y &lt; x + 1 Image for option 1 Image for opt
slava [35]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

x-4y ----> inequality A

solve for y

-4y

4y>x-4

y> (x/4)-1

The solution of the inequality A is the shaded area above the dashed line

The slope of the dashed line is positive

The y-intercept is the point (0,-1)

The x-intercept is the point (4,0)

y< x+1 ----> inequality B

The solution of the inequality B is the shaded area below the dashed line

The slope of the dashed line is positive

The y-intercept is the point (0,1)

The x-intercept is the point (-1,0)

Using a graphing tool

The solution of the system of inequalities in the attached figure

7 0
3 years ago
Need urgent help in mathematics!! Will mark brainliest!!!!
Nataly [62]

₇P₅ is a permutation. you can find this setting in the statistics menu of your scientific calculator (i think).

If you don't have a scientific calculator, you can use the following formula:

nPr = \frac{n!}{(n - r)!}

₇P₅  = \frac{7!}{(7 - 5)!}

     = \frac{7}{2!}

     = \frac{7 * 6 * 5 * 4 * 3 * 2!}{2!}

     = 7 * 6 * 5 * 4 * 3

    = 2520

Answer: C

3 0
3 years ago
Read 2 more answers
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