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2 years ago

Factorise 15x+25thank you for any help

Mathematics

2 answers:

leva [86]2 years ago

6 0

The answer is this:
5(3x+5)

scoray [572]2 years ago

4 0

Answer: 5(3x+5)

Step-by-step explanation:

To factor this expression we need to pull out the greatest common factor of the 2 numbers, 15 and 25. This factor is 5.

Now divide both numbers by 5 and put a 5 on the outside of the new expression to look like: $5(3x+5)$ and this is as far as it can be factored.

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Using the midpoint method, find the cross-price elasticity of demand for FedEx and UPS overnight shipping if the price of FedEx

IrinaK [193]

Answer:

Cross price elasticity using midpoint method = 0.56

Step-by-step explanation:

Using the mid-point method

Cross-price Elasticity of Demand = % change in Quantity demanded of UPS

% change of price of FedEx

%change in Quantity demanded of UPS

using Mid-point method = Q2-Q1 × 100

(Q1+Q2)÷ 2

= 1.3-1.2 × 100

(1.2+1.3)÷2

= 0.1 × 100

1.25

= 8%

% change in price of FedEx

using midpoint method = P2-P1 × 100

(P1+P2)÷ 2

= 75-65 × 100

(65+75)÷2

= 10 × 100

= 14.28%

Cross-price Elasticity of Demand = 8% ÷ 14.28%

using midpoint method = 0.56

6 0

2 years ago

The table gives the probabilities that new cars of different models will have brake failure. The car model that is least likely

melamori03 [73]

All the information we have are the probabilities, and what we need is the lowest number: so let's choose the smallest probability among the numbers: 0.0065%, B 0.0037%,C 0.0108%,D 0.0029%, E 0.0145%. The smallest of the numbers is 0.0029% -it starts with two 00s and the number that follows, 2, is smaller than all there others - so the smallest probability is in option D - and the model would be the corresponding model (but we're missing some information here)

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2 years ago

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Lori bought a shirt and a hat at a half off sale. If she spent a total of $21 on the two items, what was the original price of t

Bad White [126]

Do 21 divided by 2 and you’ll get 10.5 so the original price was $10 and 50 cents

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2 years ago

According to a survey by Bankrate, of adults in the United States save nothing for retirement (CNBC website). Suppose that adult

mezya [45]

Complete Question

The complete question is shown on the first uploaded image

Answer:

Yes the selection of 15 is a binomial experiment

$P(r = 15) = 3.2768 *10^{-11}$

$P(r = 5) = 0.1032$

$P(r \ge 1 ) = 0.9648$

Step-by-step explanation:

considering question a

Generally for and experiment to be binomial

The trial must be independent

There must be only two outcomes for each trial

Generally given that that the 15 adults are selected randomly which mean that the trials will be independent and that desired outcome is ''ether the adult save something for retirement or the adult saves nothing for retirement ''

Then we can say that the selection of 15 adult at is a binomial experiment

Considering question b

Generally the probability that all of the adults save nothing for retirement is mathematically represented as

$P(r = n) = ^nC_r * p^r * q^{n-r}$