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yaroslaw [1]
2 years ago
10

What is the multiplier for a 30% decrease. *

Mathematics
1 answer:
densk [106]2 years ago
4 0

Answer:

0.7

Step-by-step explanation:

Let the number to be decreased be x. To decrease x by 30 %, the result will be

= x - 30% * x

= x - 0.3x

= 0.7x

From above, the result is 0.7 multiplied by the number to be reduced. Hence the multiplier is 0.7

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Skyler leased a car for 36 months. Her contract said she can drive 5,000 miles per year
Dimas [21]

Answer:

She has to pay an extra $3,000

Step-by-step explanation:

36 months is 3 years. She is allowed 5,000 miles per year, so 3 x 5,000 = 15,000 miles allowed. But she drove 25,000.

25,000 - 15,000 = 10,000 extra miles

10,000 x 0.30 cents/mile = 3,000

5 0
3 years ago
Give the difinition, formula, and example problem of permutation, combination & probability... please asap huhu I'll mark yo
SSSSS [86.1K]

Answer:

Answer:

Permutation:

In mathematics, a permutation of a set is, loosely speaking, an arrangement of its members into a sequence or linear order, or if the set is already ordered, a rearrangement of its elements. The word "permutation" also refers to the act or process of changing the linear order of an ordered set.

Formula:

nPr=\frac{n!}{(n-r)!}

Example:

Permutations are the different ways in which a collection of items can be arranged. For example, the different ways in which the alphabets A, B and C can be grouped, taken all at a time, are ABC, ACB, BCA, CBA, CAB, BAC. Note that ABC and CBA are not the same as the order of arrangement is different.

Combination:

In mathematics, a combination is a selection of items from a collection, such that the order of selection does not matter.

Formula:

nCr=\frac{n!}{r!(n-r)!}

Example:

Combination: Picking a team of 3 people from a group of 10.

C(10,3) = 10!/(7! * 3!) = 10 * 9 * 8 / (3 * 2 * 1) = 120.

Probability:

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.

Formula:

Conditional Probability P(A | B) = P(A∩B) / P(B)

Bayes Formula P(A | B) = P(B | A) ⋅ P(A) / P(B)

Example:

Probability is the likelihood or chance of an event occurring. For example, the probability of flipping a coin and its being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail). We write P(heads) = ½.

7 0
3 years ago
Read 2 more answers
A gym sells memberships for $325. to determine the amount of money made on memberships, the gym can use the equation, t=325m, wh
TEA [102]
Money made on memberships in January:
since t=325 m, m=19
so t=325*19=$6175

Money made on memberships in a year:
12*$6175=$74100
6 0
3 years ago
Help please! make sure to tell me the answer and an explanation!
soldier1979 [14.2K]

Answer: 10

Step-by-step explanation:

So since this is all about perimeter you just got to add the values together. So lets use 12 as the denominator for every fraction. 1/4 is equal to 3/12 and 2/3 is equal to 8/12. So in conclusion 3/12 plus 8/12 and 1/12 will equal 1 in total. and then add up all the whole numbers 4 + 2 + 3 + 1 will get you 10. So 10 is your answer.

Please make me brainliest

8 0
2 years ago
Select the correct answer.
Sonbull [250]

Answer:

B.

The graph is stretched vertically and shifted to the left 1 unit.

4 0
2 years ago
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