Solve for x. x+4/x+9= 6/5 / is a division bar.

1 answer:

7 0

Times both sides by (x+9). You would get x+4 = (x+9)(6)/5. Then times by 5, when everything is expanded you should get 5x + 20= 6x + 54. All you have to do now is collect like terms and solve for x. You should get x = -34

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If Alberto's school is 3 miles due south of his house and 4 miles due west of Jimmy's house, what is the straight line distance

Hoochie [10]

using the Pythagorean Thereom:

3^2 +4^2 = X^2

9 +16 = 25

x^2 = 25

X = sqrt (25)

x = 5

it would be 5 miles

5 0

3 years ago

Read 2 more answers

In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health." PepsiCo's response included

hichkok12 [17]

Answer:

The statistic for this case would be given by:

$z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67$

Step-by-step explanation:

Infromation provided

n=100 represent the random sample selected

X=18 represent the people who rates Pepsi as being "concerned with my health"

$\hat p=\frac{18}{100}=0.18$ estimated proportion of people who rates Pepsi as being "concerned with my health"

$p_o=0.1$ is the value that reference to compare

z would represent the statistic

Hypothesis to test

For this case we can assume that the interest is check if the proportion of people who rates Pepsi as being "concerned with my health" is equal to 0.1 or not , then the system of hypothesis are:

Null hypothesis: $p=0.1$