Elliott is counting the change from a class fundraiser. He has half as many quarters as nickels, and he has 7 fewer dimes than nickels. The total value of coins is $5.90. He wrote the equation 0.10 (7 minus x) + 0.5 (x) + 0.25 (one-half x) = 5.90. Which statements identify Elliott’s errors? Check all that apply.
He should have written the expression for the number of dimes as x – 7.
He should have written the coin values as 5, 10, and 25 and not as 0.5, 0.10, and 0.25.
He should have written the coin value for the nickel as 0.05.
He should have translated the scenario as value of all dimes = value of all nickels and value of all quarters = value of all nickels.
He should have written the expression for number of nickels as 2x.

Answer:the letter is c because it the only one that is lined up and I got it right trust me

Step-by-step explanation:

The slope of the line passing through (15,21) and (25,35) is 7/5.

The slope of a line is a measure of its steepness.

Given that, the points (15,21) and (25,35) form a proportional relationship.

Slope = (y2-y1)/(x2-x1)

= (35-21)/(25-15) = 14/10 = 7/5

The equation of a line passing through these two points are;

y - y1 = [(y2−y1)/(x2−x1)](x - x1)

y - 21 = 7/4(x - 25)

y = 7x/4 - 14

Hence, the slope of the line = 7/5

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Answer: The piano lessons change Darius' savings account by $22.75 each week for four weeks so he has spent $91.00 on piano lessons.

Answer:

3/8

Step-by-step explanation:

the equation is in slope intercept from (y= mx +b) mx= slope b= y intercept

Answer: 3/8

Step-by-step explanation:

In slope-intercept format (y = mx+b), your m will be your slope so in this case you have y = 3/8(m)x + 1(y-intercept)

Answer:

i believe d is the correct answer.

Step-by-step explanation:

it states the ratio of puppies to all dogs is 8:25. this is shown by including the puppies first which is 8 and the amount of all dogs which is 25 or (8+17).

Answer:

In a proportional relationship (line through the origin), the proportionality constant is y/x for any chosen point (x,y) on the graph with x nonzero.

Ours are mixed, but here.

Sorry, im late. If anyone cant see the picture then I wrote it out for you all.

(1/5)x goes to (x)/5

5 ÷x goes to 5/x

x/2 goes to (1/2)x

and

(x)(2) goes to 2x

Hope this helped.

Answer: B for both questions

Step-by-step explanation:

You save 60 cents because the original price was 4$, but payed $3.40

Answer: A. you saved 0.60 cents B. you payed $3.40

Step-by-step explanation:

Answer:

To find the percent, we first find the decimal.

To do that we divide 5 / 6, which gives us approximately 0.83333, now we multiply it by 100 since percentages are parts of 100.

0.83333 x 100 = 83.33%

Answer:

A= 201.06

Step-by-step explanation:

Hope this helped

Answer:

1.1 cups of sugar per cake

3.3 cups of eggs per cake

4.4 cups of flour

Answer:

qwert

Step-by-step explanation:

Answer: Some examples of daily uses of Pi:

Electrical engineers used pi to solve problems for electrical applications.

Statisticians use pi to track population dynamics.

Medicine benefits from pi when studying the structure of the eye.

Biochemists see pi when trying to understand the structure/function of DNA.

___________________________

The circumference of a circle is found using this formula: C=π⋅dorC=2π⋅r.

___________________________

3+1+4 Fun Facts About Pi Pi is a ratio; as such, it never changes. ... = circumference / diameter. Though pi is irrational (meaning that it can't be expressed by a simple fraction, and the decimal points go on forever without repeating), it is often represented by a rational number: most often 3.14 or 22/7.

HOPEFULLY THIS HELPS (IF NOT IM SORRY I TRIED)

Answer:

1 and 1/3

Step-by-step explanation:

Fx equals 4x-6

Add six to both sides

6 equals 4X

Divide both sides by 4

2/3 equals x

Then GX equals f (2x)

Two times 2/3 is 1 and 1/3

Answer:

C = .04 sales

Step-by-step explanation:

Hope this helps dude ^-^

Answer:

B. y = 4/5x - 1

Step-by-step explanation:

The y-intercept is -1.

The slope is 4/5

Give like and brianliest please.

Answer:

-20/7

Step-by-step explanation:

The answer for this is 10

Answer:

5 x 16/8 or, 5 x 2 = 10

Step-by-step explanation:

When using vocabulary, you can tell that 16 is being divided by 8 and then, that quotient is then multiplied by 5.

Vocab:

times: x

as much as: to next number

divided by: x/y

Answer:

D

Step-by-step explanation:

19 - 14 = 5 / 14 x 100 = 35.714 > 36%

The other values by calculating the percent increase were

(from 2-3) = 31.57%

(from 3-4) = 32%

Greatest growth was between years 3 and 4. The growth between those years was about 32%.

percentage, a relative value indicating hundredth parts of any quantity.

Given table is  participation in a school's debate club during the last four years.

Year           1   2   3   4

Students   14 19 25 33

We need to find between which two years did the club see the greatest growth.

From year 1 and 2 the growth is increased by 5 (19-14)

year 2 and 3 the growth is increased by 6 (25-19)

year 3 and 4 the growth is increased by 8 (33-25)

So between 3 and 4 there is greatest growth.

Now let us find the percentage of the growth.

33-25/25

0.32×100

32%

Hence, greatest growth was between years 3 and 4. The growth between those years was about 32%.

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Answer:

The error is in the middle: 2(-12) = -24 not 24.

Step-by-step explanation:

Evaluating the expression, the error made is the omission of negative in one of the digits. Hence, the correct result is 6

Given the expression :

Evaluate the values in the bracket :

2(-12) - (-30)

Open the bracket

-24 + 30 = 6

The mistake made in the evaluation is the omission of negative in the digit 24.,

Therefore, the correct result is 6.

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Answer: 33/5

Step-by-step explanation:

6 x 5 = 30

30 + 3 = 33

Answer:

33/5

Step-by-step explanation:

To convert   6  3 /5   to an improper fraction begin by multiplying the whole number by the denominator

6  ⋅  5  =  30

Add this value to the numerator and keep the denominator

30  +  6 /5  ( 30 plus 6 over 5 )

=

33 /5

Jeff read 21 pages in one hour.

Kaley read 37 pages in one hour.

Nikkia read 22 pages in one hour.

It is the quantity of an amount of something at a rate of one of another quantity.

In 2 hours, a man can walk for 6 miles

In 1 hour, a man will walk for 3 miles.

We have,

To find out how many pages each person reads in one hour, we can use the unit rate, the number of pages read per hour.

Jeff read 10(3/4) pages in 1/2 hour.

To find out how many pages he would read in one hour, we can multiply the number of pages he read by the fraction 2/1, which gives:

= 10(3/4) x 2/1

= 21 pages per hour

Jeff read 21 pages in one hour.

Kaley read 12(1/4) pages in 1/3 hour.

To find out how many pages she would read in one hour, we can multiply the number of pages she read by the fraction 3/1, which gives:

= 12(1/4) x 3/1

= 37 pages per hour

Kaley read 37 pages in one hour.

Nikkia read 13(1/2) pages in 3/5 hours.

To find out how many pages she would read in one hour, we can multiply the number of pages she read by the fraction 5/3, which gives:

= 13(1/2) x 5/3

= 22 pages per hour

Nikkia read 22 pages in one hour.

Thus,

Jeff read 21 pages in one hour, Kaley read 37 pages in one hour, and Nikkia read 22 pages in one hour.

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Answer:

5 over 10 is not equal to 15 over 22 so he is not  using the correct variable

Step-by-step explanation:

Hope It helps

Answer:

no, he used to much stock

Step-by-step explanation:

Answer:

2:23 2/56

5\67

45/47

55/78

Answer:

11. 2:23 2/56

12. 5\67

13. 45/47

14. 55/78

Step-by-step explanation: