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2 years ago

Which graph models the equation y = 3.5x?

Mathematics

2 answers:

s2008m [1.1K]2 years ago

6 0

Answer:

Option C

Step-by-step explanation:

Given is an equation of a straight line

y =3.5x and

four graphs.

We have to find out the corresponding graph for this line.

Since slope is +3.5, we find that when x increases y also should increase.

Thus options A and B cannot be the graphs of this equaiton.

Now we are left with choices C and D

Let us prepare a table for the line

x 1 2 3 5

y 3.5 7 10.5 17.5

These points lie only in the graph C shown

Hence answer is option C

devlian [24]2 years ago

4 0

The answer is c be us wit is goin up by 3.5/1

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Which line has the steepest positive slope?

faltersainse [42]

I'm pretty sure its line c.

Step-by-step explanation:

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2 years ago

There are 6 sixth graders , 7 seventh graders , and 8 eight graders entered in a contest.

fgiga [73]

Answer:

See below ~

Step-by-step explanation:

P (6th grader)

No. of 6th graders / Total students
6 / 6 + 7 + 8
6/21
2/7

P (6th grader after)

No. of 6th graders - 1 / Total students - 1
6 - 1 / 21 - 1
5/20
1/4

Question 1 : P (Both 6th graders)

P = P (6th grader) × P (6th grader after)
P = 2/7 x 1/4 = 2/28 = 1/14

Question 2 : P' (Both 6th graders)

P' = 1 - P
P' = 1 - 1/14
P' = 13/14

4 0

1 year ago

Read 2 more answers

Which of the following is the algebraic expression that best describes the height y, if x is the width?

Musya8 [376]

I think the answer is a

4 0

2 years ago

The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1800 hours and a standard deviation

DedPeter [7]

Answer: 68% of light bulbs last between 1765 hours and 1835 hours.

Step-by-step explanation:

The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated below

68% of data falls within the first standard deviation from the mean.

95% fall within two standard deviations.

99.7% fall within three standard deviations.

From the information given, the mean is 1800 hours and the standard deviation is 35 hours.

1 standard deviation = 1 × 35 = 35

1800 - 35 = 1765 hours

1800 + 35 = 1835 hours

Therefore, 68% of light bulbs last between 1765 hours and 1835 hours.

6 0

3 years ago

Mr. Scruggs got some money for his birthday. He spent 1/5 of it on dog treats. Then, he divided the remainder equally among his

Mariulka [41]

Answer:

a. $\frac{4a}{15}$

b. $225

Step-by-step explanation:

Let Mr. Scruggs got money for his birthday be 'a'

He spent $\frac{1}{5}$ of it on dog treats = a × $\frac{1}{5}$

= $\frac{1}{5}a$

remainder amount would be = a - $\frac{1}{5}a$

= $\frac{4a}{5}$

Then he divided the remainder money equally among 3 favorite charities.

$\frac{\frac{4a}{5}}{3}$

= $\frac{4a}{15}$

a. Each charity receive $\frac{4a}{15}$

b. If he donated $60 to each charity.

$\frac{4a}{15}=60$

$a=\frac{15\times 60}{4}$

a = $225

Mr. Scruggs received $225 for his birthday.

6 0

2 years ago