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iren2701 [21]
3 years ago
13

Jennifer bought 12 pens. Out of 12 pens, 7 are blue and the rest are red.

Mathematics
1 answer:
alexdok [17]3 years ago
8 0

Answer:

The answer is 5:12

Step-by-step explanation:

It is 5:12 because We already know that 7 pens are blue. To find the number of red pens we must subtract 12 - 7 and get 5 as the number of red pens. Now knowing the no. of red pens and total number we can say the ratio of red pens to total no. is 5:12

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Y = kx - 8. The variable k can be any negative value.
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3 years ago
A bag holds 11 beads 7 of the beads are red the rest are white two beads are taken at random work out the probability that one o
Anvisha [2.4K]

Answer:

28/55

Step-by-step explanation:

total no of beads are 11

red beads are 7

and white beads are 4

no of ways to take 2 beads from 11 beads are 11c2

that is( 11*10)/2=55

no of ways to take 1 red bead from 7 is 7c1 that is 7

no of ways to take 1 white bead from 4 is 4c1 is that is 4

required probability is( 7*4)/55=28/55

this question has already been answered on someone else's account so know this answer is 100% correct

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3 0
3 years ago
2 4/10 + 3 5/8 = what does it equal
photoshop1234 [79]
2 4/10 + 3 5/8
= 6 1/40
4 0
3 years ago
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The nutrition supervisor for a school district is considering adding a baked potato bar to the lunch for all the high school caf
Nimfa-mama [501]

Using the confidence interval, it is found that the correct option is:

There is convincing evidence because the entire interval is above 0.

<h3>When does a confidence interval for the difference of proportions gives convincing evidence that there is a difference?</h3>

It gives convincing evidence when 0 is not part of the confidence interval.

In this problem, the interval is (0.02, 0.38), which does not contain 0, hence the correct option is:

There is convincing evidence because the entire interval is above 0.

More can be learned about confidence intervals at brainly.com/question/25890103

3 0
2 years ago
The volume of a rectangular prism is (x4 + 4x3 + 3x2 + 8x + 4), and the area of its base is (x3 + 3x2 + 8). If the volume of a r
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x + 1 minus StartFraction 4 Over x cubed + 3 x squared + 8

Step-by-step explanation:

Volume of the prism is given by the product of its base area and height. To get the height, divide the volume by the base area

Perform long division of the volume polynomial by the polynomial for base area to get the polynomial for height

x³+3x²+8 √x⁴+4x³+3x²+8x+4

                -x⁴+3x³+8x

                ---------------------------

                       1x³+3x²+0+4

                     - 1x³+3x²+8

                   ------------------------

                                     -4

The answer will be : x+1 + -4/(x³+3x²+8)

Learn More

Dividing polynomials : brainly.com/question/11792208

Keywords : volume, rectangular prism, area,height

#LearnwithBrainly

   

3 0
3 years ago
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