All categories

2 years ago

Porter recycles 10 steel cans every week. Which expression shows the total number of steel cans he recycles in w weeks?

Mathematics

2 answers:

Fudgin [204]2 years ago

6 0

To find out how many steel can porter recycled, you would have to use to equation (a)10w to find the total number.

Alik [6]2 years ago

4 0

A) 10w. You wouldn't add the 10 cans to the number of weeks to get the total and you wouldnt add 10 cans to the # of 10 cans times the # of weeks. a) 10w is the correct answer.

You might be interested in

Which table represents a nonlinear function?

Elenna [48]

Answer:

A two column table with five rows. The first column, x, has the entries, 0, 1, 2, 3. The second column, y, has the entries, negative 1.5, 1.5, 3, 4.5.

Step-by-step explanation:

When the x-values are evenly spaced, a linear function will have evenly-space y-values.

In the first table, the y-differences are all +8.

In the second table, the y-differences are 0, 1.5, 1.5, so are not all the same.

In the third table, the y-differences are all -3.

The second table represents a non-linear function.

In the graph, you can see that the points from the second table (purple) are <em>not on a straight line</em>.

3 0

3 years ago

Read 2 more answers

Brainliest if correct!! Does this graph show a function?

Masteriza [31]

Answer:

No, it is not a function.

Step-by-step explanation:

A function graph are graphs where the lines do not connect. Since the shape is a circle, many lines in the graph are connecting.

8 0

2 years ago

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an

JulsSmile [24]

Answer:

31.5 kilograms of a 5% salt solution and 13.5 kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution .

Step-by-step explanation:

Let us assume that the number of kilograms of a 5% salt solution used be x .

Let us assume that the number of kilograms of a 15% salt solution used be y .

As given

A 5% salt solution and 15% salt solution must be mixed together to make 45kg of an 8% salt solution .

Equation becomes

x + y = 45

5% is written in the decimal form .

$= \frac{5}{100}$

= 0.05

15% is written in the decimal form .

$= \frac{15}{100}$

= 0.15

8% is written in the decimal form .

$= \frac{8}{100}$

= 0.08

Thus

Concentration of 5% salt solution × Number of kilograms of 5% salt solution used + Concentration of 15% salt solution × Number of kilograms of 15% solution used = Concentration of 8% salt solution × Number of kilograms of 8% salt solution

Thus

0.05x + 0.15y = 0.08 × 45

Simplify the above

$\frac{5x}{100} + \frac{15y}{100} = \frac{8\times 45}{100}$

5x + 15y = 360

Thus two equations becomes

x + y = 45

5x + 15y = 360

Multiply x + y = 45 by 5 and subtracted from 5x + 15y = 360 .

5x - 5x + 15y - 5y = 360 - 225

10y = 135

$y = \frac{135}{10}$

y = 13.5 kilograms

Put value of y in the equation

x + 13.5 = 45

x = 45 - 13.5

x = 31.5 kilograms

Therefore the 31.5 kilograms of a 5% salt solution and 13.5 kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution .

5 0

2 years ago

Have the conditions for inference been met?

alekssr [168]

Answer: the answer is A

Step-by-step explanation: because the original question does not state that the swimmer “randomly selected” the members. It only says the swimmer “selects” 10 members. Therefore, it is A (The sample is not random)

youre welcome

5 0

2 years ago

Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5, and a drink for $2. Write an ex

Mandarinka [93]

Answer:

Tyree and all of his friends get 1 ticket for $7. Next they all get 1 snack for $5. Then they all get a drink for $2. So:

1=7

1=5

1=2

Then you take each person (which there are five of then) and you times all five people by 7, 5, 2.

5 x 7=35

5 x 5=25

5 x 2=10

After that you add it all together:

35 plus 25=60

60 plus 10=70

Step-by-step explanation:

your welcome

4 0

3 years ago

Read 2 more answers