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2 years ago

9

There are 20 marbles in the box. 4 marbles are black, 6 marbles are blue, 10 are red. What is the probability of drawing a black

OR a red marble?

1 answer:

Nitella [24]2 years ago

4 0

Answer:

7/10 or 70% or 0.7

Step-by-step explanation:

4 black, 10 red

10+4=14

now you put it over the total marbles

14/20=7/10

i don't know how your teacher wants you to give the answer but it is 7/10 or 0.7 or 70%

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Find the scale factor of the dilation shown<br><br> A. 1/2<br> B. 3/2<br> C. 2<br> D. 2/3

AleksandrR [38]

Answer:

B

Step-by-step explanation:

To go from 6 to 9 you'd first have to divide 6 by 2 and the multiply by 3,

so $\frac{1}{2}$ x 3 = $\frac{3}{2}$

8 0

3 years ago

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Great white sharks have triangular teeth with a height that is 1 centimeter longer than the base. if the area of one tooth is 15

lisov135 [29]

A = (H * B) / 2.......2A = H * B
A = 15
H = B + 1

2(15) = H * B
30 = B(B + 1)
30 = B^2 + B
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H = B + 1
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5 0

3 years ago

Applications: Sarah's Pet Store never has more than a combined total of 16 cats and dogs. She also never has more than 9 cats. W

ankoles [38]

The possible solution is 12 cats and 4 dogs in Sarah's store.

Let x represent the number of cats and y represent the number of dogs.

Since Sarah's Pet Store never has more than a combined total of 16 cats and dogs. Hence:

x + y ≤ 16

Also, She also never has more than 9 cats. Therefore:

x > 9

The solution to the inequality is graphed. From the graph, the possible solution is 12 cats and 4 dogs

Find out more on inequalities at: brainly.com/question/24372553

4 0

2 years ago

Anyone know the answer to this question???

Katyanochek1 [597]

They want you to write the number in index form.

The number is 5N^2, where N = 3 x 5^2 x x^3

So:

5N^2 = 5 x (3 x 5^2 x x^3)^2

= 5 x (3^2 x 5^4 x x^6)

= 3^2 x 5^5 x x^6

or a bit neater looking: 3² ₓ 5⁵ ₓ x⁶

5 0

3 years ago

A baby was born 3/4 of a month early. At birth its weight was 7/8 kilograms, which is 9/10 kilograms less than the average weigh

BlackZzzverrR [31]

Answer:

The average weight of a newborn otter is 1.775 kg.

Step-by-step explanation:

We are given the following in the question:

Weight of newborn otter =

$\dfrac{7}{8}\text{ kg}$

Let x lg be the average weight of a newborn otter.

Thus, we are given the relation:

$\dfrac{7}{8} = x - \dfrac{9}{10}\\\\x = \dfrac{7}{8} + \dfrac{9}{10}\\\\x = \dfrac{35+36}{40} = \dfrac{71}{40}\\\\x = 1.775\text{ kg}$

Thus, the average weight of a newborn otter is 1.775 kg.

7 0

3 years ago