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3 years ago

Find the number that makes the ratio equivalent to 5:7

1 answer:

4 0

All you have to do is add up the numerators (numbers on top) and then simplify your ... They have no common factors, so let's just multiply to create two new equivalent fractions. ... Add whole numbers: 2 + 5 = 7

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Multiply or divide as indicated. X^-3•x^7

user100 [1]

Answer: X^4 you just subtract or add with exponents

Step-by-step explanation:

4 0

3 years ago

RS = 4x – 9, ST = 19, RT = 80 – 14 Equation: 82 – 14 RS RT

algol13

Step-by-step explanation:

The expressions are not properly written

Given

RS = 4x – 9

ST = 19

RT = 8x – 14

Based on the given parameters, the addition postulate below is true

RS+ST = RT

Substitute

4x-9+19 = 8x-14

collect like terms

4x-8x = -14-19+9

-4x = -33+9

-4x = -24

x = -24/-4

x = 6

Get RS:

RS = 4x-9

RS = 4(6)- 9

RS = 24-9

RS = 15

Get RT:

RT = 8x - 14

RT = 8(6)-14

RT = 48-14

RT = 34

4 0

4 years ago

Assume that a set of test scores is normally distributed with a mean of 70 and a standard deviation of 10. In what percentile is

vlabodo [156]

Given:
μ = 70, the mean
σ = 10, the standard deviation

The random variable is x = 65.
Calculate the z-score.
z = (x - μ)/σ = (65 -70)/10 = - 0.5

From standard ables, obtain
P(x<5) = 0.3085 ≈ 30%
The score of 65 is in the 30th percentile.

Answer: 30th

3 0

4 years ago

How many times dose 12 go into 41

jonny [76]

Answer:

3.42

Step-by-step explanation:

41/12 is 3.42

3 0

3 years ago

Read 2 more answers

a baker is looking for a recipe that has the lowest unit rate for flour per batch of muffin .which recipe should she use a.2-3cu

Nitella [24]

Answer:

i don't know and don't care

Step-by-step explanation:

4 0

3 years ago