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3 years ago

Please answer for branliest

Mathematics

2 answers:

Fittoniya [83]3 years ago

4 0

50%, 1/2 or .50
the total amount is 30 and purple is accountable for 15
make the fraction 15/30

Marina86 [1]3 years ago

3 0

There is a 50% probability.

First add up all of the sections to get a total.

10 Green + 15 Purple + 2 Blue + 3 Red = 30.

There are 15 purple out of 30.

15/30 = 1/2 probability, which is 50%.

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A salesperson had $240, 000 in sales last year, which is 60% of the sales she had this year. Which equation could be used to det

dem82 [27]

Answer: $400,000

Step-by-step explanation:

Let the salesperson's total amount of sales, in dollars, for this year be represented by x.

Therefore, 60% of x = $240,000

60/100 × x = $240,000.

0.6 × x = $240,000..

x = $240000 / 0.6

x = $400,000

Therefore, the salesperson's total amount of sales, for this year is $400,000.

6 0

3 years ago

Find the slope of the line passing through the given points using the slope formula. Describe the slope as positive, negative, z

r-ruslan [8.4K]

Answer:

slope is undefined

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 5, - 17) and (x₂, y₂ ) = (- 5, - 3)

m = $\frac{-3+17}{-5+5}$ = $\frac{14}{0}$

Since division by zero is undefined, then

the slope of the line is undefined

8 0

3 years ago

Write the following expression without negative exponents and without parentheses.

cestrela7 [59]

ANSWER: -3/x^2

The negative exponent correlates to the x. In order for the exponent to be positive, it changes from the numerator to the denominator.

6 0

2 years ago

Classify each description as either an observational study or an experiment.

Eva8 [605]

Answer:

1. Experiment

2. Observation study

3. Experiment

4. Observation study

5. Experiment

Step-by-step explanation:

Observational study Vs. Experiment

An observational study is a study where researchers simply collect data based on what is observed and give results based on the data collected.
There is no control over the variables in an observational study.
An experiment is a method of applying treatments to a group and recording the effects.
The variables in a an experiment can be controlled.
An observational study is where nothing changes but in an experimental study we have control over groups and may change.

1. This is an experiment as people were divided into groups and treatment were given.

2. This is an observational study as no treatment was done on the people just political preference was measured on the basis of collected data.

3. This is an experiment as farmers were divided into groups and effects of a new pesticide was tested.

4. This is an observational study as the data collected told about effect of exercise on lowering the risk of cancer and no experiments were carried out.

5. This is an experiment as people were divided into groups and cholesterol was measured with and without exercise.

7 0

3 years ago

One winter, a group of students measured snowfall totals at their school. This chart shows how many inches of snow the students

harkovskaia [24]

11.4 snowfall was received in January and February combined.

<u>Step-by-step explanation</u>:

Amount of snowfall received in January = 8.6
Amount of snowfall received in February = 2.8

<u>Snowfall received in January and February combined </u>:

Snowfall received in January and February combined = 8.6 + 2.8 = 11.4

5 0

4 years ago