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2 years ago

Cans of wood varnish come in three sizes.

Mathematics

1 answer:

Anton [14]2 years ago

7 0

Answer:

The cost of 1 liter for the small can is £ 2.80, while the cost of 1 liter for the medium can is £ 2.64.

Step-by-step explanation:

Since cans of wood varnish come in three sizes, the 200 ml small can costs £ 0.56, the 500 ml medium can costs £ 1.32, and the 1 l large can costs £ 2.68, to determine the cost of 1 l for the small and medium cans the following calculation must be performed:

200 ml = 0.2 l

500 ml = 0.5 l

0.56 x 5 = 2.8

1.32 x 2 = 2.64

Thus the cost of 1 liter for the small can is £ 2.80, while the cost of 1 liter for the medium can is £ 2.64.

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Answer:

19.8%

Step-by-step explanation:

We have the following formula for continuous compound interest:

A = P * e ^ (i * t)

Where:

A is the final value

P is the initial investment

i is the interest rate in decimal

t is time.

The time can be calculated as follows:

25 - 18 = 7

That is, the time corresponds to 7 years. In addition, A is 20,000 for A and P would be 5,000, we replace:

20000 = 5000 * e ^ (7 * i)

20000/5000 = e ^ (7 * i)

e ^ (7 * i) = 4

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Step-by-step explanation:

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Which of the following is correct equation for the trend line in the scatter plot? A. Y= 2/5 x -2 B. Y= 5x-1 C. Y= 5x +5 D. Y= -

Dafna11 [192]

Answer: C. Y = 5x + 5

Step-by-step explanation:

We need to write, or decide on, the equation for the blue line as this line represents the trend line for this scatter plot. We will write this in slope-intercept form. See attached for a visual.

First, we will find our slope. We will use $\frac{rise}{run}$ for this since we have a graph with clear points. See attached, we count up [5] and then count to the right [1] for a slope of 5.

-> Slope = 5

Now, we will find our y-intercept. This is where the line intersects the y-axis. The line hits the y-axis at point (0, 5) giving us a y-intercept of 5.

-> Y-intercept = 5

Lastly, we will write our equation and decide on an answer.

y = mx + b

y = (5)x + (5)

Y = 5x + 5

C. Y = 5x + 5