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2 years ago

I don't understand ratios.Please will someone explain them?

Mathematics

2 answers:

Wittaler [7]2 years ago

6 0

Ratios are like fractions. 5:6 is the same as 5/6.

brilliants [131]2 years ago

6 0

A ratio says how much of one thing there is compared to another thing.

Example. Say if there 4 apples and 3 blueberries

The ratio to apples to berries will be 4:3

But if its blueberries to apples it would be 3:4

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Evaluate 12²- 4 (6) + 1/ 11²

Marrrta [24]

Answer:

On a calculator you would get 120.008264463

other wise know as 120 1/121

5 0

2 years ago

!!!!!!! I NEED THE WORK PLS ILL GIVE BRAINLIST!!!

dexar [7]

Answer:

1. 4 and 4sqrt2

2. 6sqrt2 and 6sqrt2

3. 5 and 5sqrt2

4. 5sqrt2 and 5sqrt2

5. 6 and 6

6. 8 and 8sqrt2

7. sqrt3 and sqrt6

8. sqrt2 and sqrt4

Step-by-step explanation:

3 0

2 years ago

A random variable r is normally distributed with a mean of 7 and a standard deviation of 1.5. Find the value of w so that P (8.8

a_sh-v [17]

Answer:

The answer is explained below

Step-by-step explanation:

Given that:

mean (μ) = 7 and standard deviation (σ) = 1.5.

The z score is used in statistic used to measure the number of standard deviation by which the raw score is above or below the mean value. It is given by:

$z=\frac{x-\mu}{\sigma}, where\ x\ is\ the \ raw\ score$

To find the Probability that x < 8.8, we first find the z score using:

$z = \frac{x-\mu}{\sigma}=\frac{8.8-7}{1.5}=1.2$

From the z tables, P(x < 8.8) = P(z < 1.2) = 0.8849 = 88.49%

4 0

2 years ago

Simply the expression by combining like terms 20c+8d+10c-5d

valentinak56 [21]

First, combine 20c and 10c because they are like terms then combine 8d and -5d.

It would look like this:

20c+8d+10c-5d

30c+3d

Hope that helps

6 0

2 years ago

Christopher just found beautiful yarn for 20% off at his favorite yarn store. He can make one scarf from 2/3 of a ball of yarn.

bija089 [108]

Christopher would be able to make 18 scarves.

To solve this problem, we just need to divide 12 by 2/3. To divide 12 by 2/3, we just multiply 12 by 3/2.

This will give us 36 over 2 or just 18.

3 0

2 years ago