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3 years ago

What is (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x), simplified?

Mathematics

2 answers:

Murrr4er [49]3 years ago

4 0

Answer:

4.4x+1.5

Step-by-step explanation:

1.6x+7.3+-0.6x+2-7.8-3.4x =

1.6x -0.6x+3.4x +7.3+2-7.8=

4.4x + 1.5

Elden [556K]3 years ago

4 0

Answer:

correct answer IS 4.4

Step-by-step explanation:

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Solve for x<br>2x²-3x-209=0

kifflom [539]

Answer:

x= 11

Step-by-step explanation:

3 0

3 years ago

A super clearance sale, bathing suits were marked 85% off. What is the sale price of a bathing suit that was originally priced $

liraira [26]

Answer: 9$
Explanation: 15% is how much a person will pay and 15% of 60 is 9$

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3 years ago

1. The probability of telesales representative making a sale on a customer call is 0.15.

Mumz [18]

Answer:

$n = 33$

$n = 19$

Step-by-step explanation:

From the question we are told that

The probability of telesales representative making a sale on a customer call is $p = 0.15$

The mean is $\mu = 5$

Generally the distribution of sales call made by a telesales representative follows a binomial distribution

i.e

$X \~ \ \ \ B(n , p)$

and the probability distribution function for binomial distribution is

$P(X = x) = ^{n}C_x * p^x * (1- p)^{n-x}$

Here C stands for combination hence we are going to be making use of the combination function in our calculators

Generally the mean is mathematically represented as

$\mu = n* p$

=> $5= n * 0.15$

=> $n = 33$

Generally the least number of calls that need to be made by a representative for the probability of at least 1 sale to exceed 0.95 is mathematically represented as

$P( X \ge 1) = 1 - P( X < 1 ) > 0.95$

=> $P( X \ge 1) = 1 - P( X =0 ) > 0.95$

=> $P( X \ge 1) = 1 - [ ^{n}C_0 * (0.15 )^0 * (1- 0.15)^{n-0}] > 0.95$

=> $1 - [1 * 1* (0.85)^{n}] > 0.95$

=> $[(0.85)^{n}] > 0.05$

taking natural log of both sides

$n = \frac{ln(0.05)}{ln(0.85)}$

=> $n = 19$

3 0

3 years ago

The solution to the system equations

katovenus [111]

Let's solve this system of equations through substitution.

We have these two equations.

-7x-2y=14

6x+6y=18

Now let divide the second equation by 6.

6x+6y=18 ----> x+y=3

Next, let us move y to the right side of the equation.

x+y=3 -------> x=3-y (x equals 3-y)

Because we found out that what x is in terms of y, we can input that in for every instance of x in this equation below.

-7x-2y=14 becomes -7(3-y)-2y=14 (Why? Because x equals 3-y!)

We have a one variable equation now and can solve for y.

-7(3-y)-2y=14

-21+7y-2y=14

5y=35

y=7

Plug in 7 for y in any equation to find x.

x+y=3

x+7=3

x=-4

answer: x=-4, y=7

3 0

3 years ago

Which expression has the same value as the one below 10+(-34)

AlekseyPX

10 + (-34) is the same as 10 - 34, for adding a negative number is the same as subtracting the two numbers

remember, one positive and one negative = negative (as it is the same as +1(-34)

B is your answer

3 0

3 years ago

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