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3 years ago

Louisa wants to buy an online movie subscription that is on sale for

Mathematics

1 answer:

DedPeter [7]3 years ago

4 0

Answer:

0.85c
one is the cost; the other is the discount

Step-by-step explanation:

a) As a fraction of the original price Louisa will pay ...

0.85c . . . . 85% of the subscription price

b) Louisa's expression (-0.15c) tells the amount of the discount, not the cost of the subscription. If Louisa were to write the cost of the subscription, her expression would be ...

c - 0.15c

c) The expression of (a) is the cost of the subscription; the expression Louisa wrote is the amount of cost reduction due to the discount.

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The scatter plot below shows the relationship between drop height and speed of a roller

PtichkaEL [24]

Answer:

b = 32.575

Step-by-step explanation:

The y-intercept is 32.575.

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3 years ago

Write an equation for the nth term of the arithmetic sequence.<br> 17, 12, 7, 2, ...<br> an=

Lorico [155]

Answer:

An equation for the nth term of the arithmetic sequence 17, 12, 7, 2 is 17-5n.

Step-by-step explanation:

Given,

first term(a)=17

common difference (d)=t2-t1

=12-17

=-5

nth term of the arithmetic sequence = a+n×d

=17+n×-5

=17-5n

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3 years ago

The AAA system contains 3 independent components in parallel, each with probability of failure 0.4. Find the expected number of

Gre4nikov [31]

Answer:

Step-by-step explanation:

For each component, there are only two possible outcomes. Either it fails, or it does not. The components are independent. We want to know how many outcomes until r failures. The expected value is given by

$E = \frac{r}{p}$

In which r is the number of failures we want and p is the probability of a failure.

In this problem, we have that:

r = 1 because we want the first failed unit.

$p = 0.4[\tex]So[tex]E = \frac{r}{p} = \frac{1}{0.4} = 2.5$

The expected number of systems inspected until the first failed unit is 2.5

8 0

3 years ago

The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal

Schach [20]

Answer: $80.44

Step-by-step explanation:

First of all, find 20% of 78.86, which is approximately 15.77.

Then, add it to the cost of the meal.

Finally, discount 15% of 94.63, which is approximately $14.19, and then subtract it from $94.63, and there's your answer.

3 0

3 years ago

A diver takes a running leap off of a 40 foot cliff into a pool of water. When she is 5 feet from the cliff,

padilas [110]

of" (and any subsequent words) was ignored because we limit queries to 32 words.

8 0

3 years ago