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evablogger [386]

3 years ago

8

Need a lot of help please

1 answer:

frosja888 [35]3 years ago

7 0

First you need to find your total amount of marbles and this number will be your denominator (on the bottom).

8 + 14 + 12 = 34

Then you see how many black marbles are in the bag and this number will be your numerator (on the top).

The probability Jose will pick a black marble is 8/34 but you always reduce your fractions so the correct answer is 4/17.

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Admission to the fair costs $8.75. Each ride costs $0.50 to ride. You can spend at most $16. Write and solve an inequality to re

sergij07 [2.7K]

8.75 + 0.50 =9.25 dollars spend but she has 16 dollars so 16 - 9.25 = 6.75 dollars left

5 0

3 years ago

Mrs. Johnson put 22,250 miles

Viefleur [7K]

The change in quantities can be represented as percentage

<em>The percentage decrease in miles driven is 34.83%</em>

The given parameters are:

$\mathbf{Initial = 22250}$

$\mathbf{Final = 14500}$

The percentage decrease is calculated as:

$\mathbf{\%Decrease = \frac{Final - Initial}{Initial} \times 100\%}$

Substitute known values

$\mathbf{\%Decrease = \frac{14500- 22250}{22250} \times 100\%}$

$\mathbf{\%Decrease = \frac{-7750}{22250} \times 100\%}$

$\mathbf{\%Decrease = \frac{-775000}{22250} \%}$

$\mathbf{\%Decrease = -34.83 \%}$

The negative sign implies that, the change represents a decrement.

Hence, the percentage decrease in miles driven is 34.83%

Read more about percentage change at:

brainly.com/question/14801224

7 0

2 years ago

Help plz Easy math I know the answer isn’t A

Brrunno [24]

Answer: B

Step-by-step explanation: It is greater or equal to -6 and less than or equal to 5.

4 0

3 years ago

Read 2 more answers

The average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00. Assuming a normal distribution, if 77 percent

jek_recluse [69]

Answer:

22.97

Step-by-step explanation:

Given that the average cost of an IRS Form 1040 tax filing at Thetis Tax Service is $138.00.

Let x be the average cost an IRS Form 1040 tax filing at Thetis Tax Service

$P(X$ is given

From std normal distribution table we find 77th percentile z value.

z=0.74

Corresponding X value = 155

i.e. $0.74=\frac{155-138}{s}$ where s is the std deviation

Simplify to get

Std deviation = $\frac{17}{0.74} \\=22.97$

8 0

3 years ago

The graph of a quadratic function with vertex (3, 1) is shown in the figure below. Find the domain and the range. Write your ans

Snezhnost [94]

Answer:

<u>There is no restriction to domain:</u>

x = (-∞, +∞)

<u>The range is to vertex coordinate of 1:</u>

y = [1, +∞)

4 0

3 years ago