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Ludmilka [50]
3 years ago
10

What is 7/5 turned into a decimal

Mathematics
1 answer:
cestrela7 [59]3 years ago
8 0
7/5 is converted to 1.4
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Danny brought a car for £10000 the value of the car depreciated by 20% in the first year then the value of the car depreciated b
Levart [38]

£7200

In first year depreciates by 20%, that is it is worth 80% of it's original value

80% = \frac{80}{100} = 0.8

value after 1 year = 0.8 × £10000 = £8000

In the second year it depreciates by 10% of it's value, that is it is worth 90% of it's value at the end of the first year.

90% = \frac{90}{100} = 0.9

value after 2 years = 0.9 × £8000 = £7200


6 0
3 years ago
The cost of t-shirts varies directly with the number of t-shirts. The data is shown in the graph. If x = is number of t-shirts,
Lera25 [3.4K]
The answer is y = 5.5x, so B
3 0
3 years ago
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cube A has volume V. the edges of cube b are three times as long as the edges of cube A. What is the volume of cube b in terms o
Mariulka [41]

Answer:

V=a cube

If i am wrong let me know!

4 0
2 years ago
A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 410 gram setting. It is
frozen [14]

Answer:

The decision rule for rejecting the null hypothesis is t < -1.721

Step-by-step explanation:

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 410 gram setting. It is believed that the machine is underfilling the bags.

At the null hypothesis, we test if the mean weight of the bag is the desired value of 410, that is:

H_0: \mu = 410

At the alternate hypothesis, we test if the bag is underfilled, that is, the mean weight is below the desired value, so:

H_0: \mu < 410

Type of test:

As we test if the mean is less than a value, we have a left-tailed test.

We have the standard deviation for the sample, which means that the t-distribution is used.

We have 22 - 1 = 21 degrees of freedom, with a level of significance of 0.05.

Using a calculator, the critical value is t_c = -1.721

Determine the decision rule for rejecting the null hypothesis.

We reject the null hypothesis if the test statistic is less than the critical value, so the decision rule for rejecting the null hypothesis is t < -1.721

3 0
3 years ago
Terri is rewriting 7 Superscript 13 in expanded form. How many factors should she use in her expression?
netineya [11]

Answer:

7 x 13 expanded form is  y = 7 x 13  ........  7 dived by 13 in expand form is y=7 dived by 3

Step-by-step explanation:

if that's not what your looking  for   sorry :)

8 0
3 years ago
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