20 multiplication facts in one minute. How long to take him to complete 35 multiplication facts

The price of a watch was increased by 7% to £1350. What was the price before the increase? Give your answer to the nearest penny

frutty [35]

Answer:

1261.68

Step-by-step explanation:

1350 = the increased watch price= 107% of the original

1350= 1.07x

1261.68224299

Check:

7% of 1261.68224299 is 88.317757

1261.68224299 + 88.317757 = 1349.9 = 1350

Round:

1261.68224299

To the penny= to the hundreth= 1261.68

3 0

3 years ago

The table shows the distance Allison drove on one day of her vacation. Is the relationship between the distance and the time a p

Anuta_ua [19.1K]

Answer:

we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

Step-by-step explanation:

We know that when 'y' varies directly with 'x', we get the equation

y ∝ x

y = kx

k = y/x

where 'k' is called the constant of proportionality.

In our case, the table shows the distance Allison drove on one day of her vacation.

Time (h) 1 2 3 4 5

Distance (mi) 55 100 165 280 250

using the equation

k = y/x

susbtitute y = 55, x = 1

k = 55/1 = 55

substitute y = 100, x = 2

k = y/x

k = 100 / 2 = 50

substitute y = 165, x = 3

k = y/x

k = 165 / 3 = 55

substitute y = 280, x = 4

k = y/x

k = 280 / 4 = 70

substitute y = 250, x = 5

k = y/x

k = 250 / 5 = 50

It is clear that the value of 'k' does not remain constant.

Therefore, we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

6 0

3 years ago

Pls help me on this question!!

Yanka [14]

Answer:

from what i can tell this seems to be a translation three units down and three units to the left, this is not a dilation

Step-by-step explanation:

4 0

2 years ago

On Halloween night, Mack collects x pieces of candy and then eats 7 pieces. The next day he eats 10% of his candy pieces and has

IgorLugansk [536]

Answer:80 or 1,071

Step-by-step explanation:

first you add 7+10=17 then you do 17x63=1,071

if its not times then the answer would b 80

6 0

3 years ago

Please helppp...

Brut [27]

Answer:

Option A is correct

The linear relationship displayed by the scatter plot is; y=x+10

Step-by-step explanation:

Scatter plot states that a set of points that represent data.

To determine the best equation for a set of points from the given figure.

In general, you can use these steps as follows:

First sketch the line that appears to most closely follow the data.

and also try to have the same number of points above and below the line.

You can choose two points on the line and estimate their coordinates.
Then, find the equation of the line that passes through the two points

To find the equation of linear relationship that displayed by the scatter plot

Using Slope-intercept form:

For any two points $(x_1, y_1)$ and $(x_2, y_2)$ the equation of line is given by:

$y-y_1 = m(x-x_1)$ where m is the slope and it is given by:

$m = \frac{y_2-y_1}{x_2-x_1}$

From the figure we choose two points on the line:

i.e, (9 , 19) and ( 15 , 25)

Calculate first slope m :

$m = \frac{y_2-y_1}{x_2-x_1}= \frac{25-19}{15-9}=\frac{6}{6}=1$

Now, using slope intercept form to find the equation of line;

$y-19 = 1 \cdot(x -9)$

or

y-19 = x -9

Add both sides 19 we get;

y -19 + 19 = x -9 + 19

Simplify:

y = x+10

Therefore, the function which best expresses the linear relationship displayed by the scatter plot is; y = x +10

8 0

3 years ago

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