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3 years ago

What two numbers add to 92 and multiply to 160?

Mathematics

1 answer:

KatRina [158]3 years ago

3 0

None But, 80 x 2 = 160 and 80 + 2 = 82, are you sure you mean 92?

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One market sells a 3 kilogram bag of tortillas for 42 pesos and another sells 2 kilograms of tortillas for 26 pesos which unit p

Dafna1 [17]

Answer:

2 kilogram bag.

Step-by-step explanation:

To figure this out, we need to divide the price by the amount of kilograms. Lets start with the 3 kilo bag. Divide 42 by 3, let y equal the price per kilo

42/3=y

Divide

14=y

Now lets do the same with the 2 kilo bag. Divide 26 by 2. Let x be this number.

26/2=x

divide

13=x

The 2 kilo bag is better as its 13 pesos per kilo compared to the 3 kilo bag's 14 pesos per kilogram.

3 0

3 years ago

A tiene la mitad de lo que tiene B. Si A gana 66 y B pierde 90. A tendrá del doble de lo que le quede a B ¿cuanto tiene cada uno

Oksana_A [137]

Respuesta:

a = 82; b 164

Explicación paso a paso:

a = 1 / 2b - - - (1)

a gana 66 = a + 66

b = b - 90

a = 2b

a + 66 = 2 (segundo - 90) - - - (2)

Ponga a = 1 / 2b en (2)

1 / 2b + 66 = 2 (b-90)

0.5b + 66 = 2b - 180

0.5b - 2b = - 180 - 66

-1,5b = - 246

b = 164

a = 1 / 2b

a = 1/2 * 164

a = 82

7 0

3 years ago

What is 85 in simplest radical form?

Alexeev081 [22]

Answer:

=√85 is the simplified radical

3 0

3 years ago

A large disaster cleaning company estimates that 30 percent of the jobs it bids on are finished within the bid time. Looking at

Y_Kistochka [10]

Answer:

There is a 13.61% probability that exactly 4 of the jobs were not completed within the bid time.

Step-by-step explanation:

For each job, there are only two possible outcomes. Either they are completed on time, or they are not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Looking at a random sample of 8 jobs that it has contracted, calculate the probability that exactly 4 of the jobs were not completed within the bid time.

There are 8 jobs, so $n = 8$ .

30% of them are finished on time, which means that 70% are not completed within the bid time. This means that $p = 0.7$

The problems asks for P(X = 4). So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 4) = C_{8,4}.(0.7)^{4}.(0.3)^{4} = 0.1361$

There is a 13.61% probability that exactly 4 of the jobs were not completed within the bid time.

4 0

4 years ago

For her phone service, Kala pays a monthly fee of $10 , and she pays an additional $0.04 per minute of use. The least she has be

crimeas [40]

Answer:

1487

Step-by-step explanation:

The inequality is 0.04m + 10 ≥ 69.48. We use ≥ and not > because it says "least", indicating that we need to use the ≥ sign. Solving for m we get:

0.04m + 10 ≥ 69.48

0.04m ≥ 59.48

m ≥ 1487

The smallest integer that satisfies this inequality is 1487 minutes.

4 0

3 years ago