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3 years ago

A person purchased two boxes of light bulbs for 90 dollars including shipping.

Mathematics

1 answer:

Crazy boy [7]3 years ago

4 0

Answer: x=10

Step-by-step explanation: 7x10 =77. 90-77=13 which was shipping

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uysha [10]

Answer: $x=45$

Simplify both sides of the equation

$x+1.2x+1=100$

$(x+1.2x)+(1)=100$ (Combine Like Terms)

$2.2x+1=100$

Subtract 1 from both sides

$2.2x+1-1=100-1\\2.2x=99$

Divide both sides by 2.2

$2.2x/2.2=99/2.2$

$x=45$

4 0

4 years ago

Read 2 more answers

USA Today reports that about 25% of all prison parolees become repeat offenders. Alice is a social worker whose job is to counse

MissTica

Answer:

P(x = 0) = 0.004

P(x = 0) = 0.047

P(x = 0) = 0.211

P(x = 0) = 0.422

P(x = 0) = 0.316

Step-by-step explanation:

We are given the following information:

We treat a person who does not become a repeat offender as a success.

P(Success) = P(person who does not become a repeat offender) = 0.75

Then the number of people follows a binomial distribution, where

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}$

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 4

We have to evaluate:

$P(x = 0)\\= \binom{4}{0}(0.75)^0(1-0.75)^4 = 0.004$

$P(x = 1)\\= \binom{4}{1}(0.75)^1(1-0.75)^3 = 0.047$

$P(x = 2)\\= \binom{4}{2}(0.75)^2(1-0.75)^2 = 0.211$

$P(x = 3)\\= \binom{4}{3}(0.75)^3(1-0.75)^1 = 0.422$

$P(x = 4)\\= \binom{4}{4}(0.75)^4(1-0.75)^0 = 0.316$

8 0

4 years ago

Emeril mixed 3/10 cup balsamic vinegar with 2/10 cup oil to make a salad dressing. Then he use 1/10cup of mixture for a large sa

LenKa [72]

Add them together and subtract so it would be 3/10+2/10=5/10 1-5/10=5/10

The answer is 5/10

8 0

3 years ago

Read 2 more answers

Write an equation in slope intercept form given two points: (3,1),(0,10)

qaws [65]

Answer:

y = - 3x + 10

Step-by-step explanation:

We have to write an equation of a straight line in slope-intercept form that passes through the points (3,1) and (0,10).

Now, the equation of the straight line (using two points form) will be

$\frac{y - 1}{ 1 - 10} = \frac{x - 3}{3 - 0}$

⇒ y - 1 = - 3(x - 3)

⇒ y - 1 = 9 - 3x

⇒ y = - 3x + 10 (Answer)

{Since the slope-intercept form of a straight line equation is y = mx + c}

We know the equation of a straight line when any two points on the straight line ( $x_{1},y_{1}$ ), ( $x_{2},y_{2}$ ) are known, will be

$\frac{y - y_{1} }{y_{1} - y_{2}} = \frac{x - x_{1} }{x_{1} - x_{2}}$

6 0

3 years ago

Can you please help me with this question I would really appreciate it

UkoKoshka [18]

Answer:

(0,0) (-2,0) (2,0)

Step-by-step explanation:

7 0

3 years ago