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3 years ago

Which statement describes the relationship between x and y in these two equations? y = 2x and y = x + 2

Mathematics

1 answer:

love history [14]3 years ago

6 0

Answer:

Step-by-step explanation:

In y = 2x the value of y is twice the value of x, and in y = x + 2 the value of y is 2 more than the value of x.

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Janet has 120 dollars,. if she saves 20 dollars per week, in how many days will she have 500?

GrogVix [38]

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3 years ago

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jasenka [17]

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3 years ago

A man gathers nuts in a forest. Each time he finds a nut, there is a 20% chance it is a pecan and a 35% chance it is a walnut.

gladu [14]

Either a pecan or walnut means you add the probabilities together

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7 0

3 years ago

9.Which of the following are used to represent unknown quantities in algebra? A) Upper case letters B) Lower case letters C) Onl

bearhunter [10]

Answer:

B - Lower case letters

Step-by-step explanation:

In algebra, unknown quantities are usually represented as lower-case letters like $x, y, i, j, k$ etc.

3 0

2 years ago

Read 2 more answers

Approximately 85% of persons age 70 to 84 live in their own household and are income-qualified for home purchases.

miv72 [106K]

Answer:

The probability that exactly two of the four live in their own household and are income-qualified is = .0975

Step-by-step explanation:

Given -

Approximately 85% of persons age 70 to 84 live in their own household and are income-qualified for home purchases.

Probability of sucess ( p ) = 85% =.85

Probability of failure ( q ) = 1 - .85 =.15

n = 4

From combination of n events taking r sucess we use binomial distribution

$P(X = r) = \binom{n}{r}p^{r}q^{n-r}$

where , r = 2

the probability that exactly two of the four live in their own household and are income-qualified is =

$P(X = 2) = \binom{4}{2}0.85^{2}0.15^{4 - 2}$

= $\frac{4!}{(2!)(2!)} \times 0.7225 \times .0225$

= $6 \times 0.7225 \times .0225$

= .0975

4 0

3 years ago