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1 year ago

The cost of an item is 100% of its price. What number goes in place of ? in the addition problem?

Mathematics

2 answers:

Dmitry_Shevchenko [17]1 year ago

8 0

I believe this is the complete problem.

Anton bought a picnic cooler. His total bill, with tax, was $7.95. He paid 6 percent sales tax. How much did he pay for the cooler alone without the tax? The cost of an item is 100% of its price. What number goes in place of ? in the addition problem?

The answer is the below:

He paid $7.473 without tax because $7.95 x 96% or (0.96) =$7.473

borishaifa [10]1 year ago

6 0

Answer:

The value of x is $7.5

Step-by-step explanation:

Given The cost of an item is 100% of its price.

Anton bought a picnic cooler. The total bill, with the tax, was $7.95. He paid 6% sales tax.

we have to tell how much he pay for cooler without tax.

We have to find the value of ? let it be x shown in expression.

By the given expression we can write

x+6% of x=$7.95

⇒ x(1+0.06)=$7.95

⇒ 1.06x=7.95 ⇒ x=7.5

Hence, the value of x is $7.5

He paid $7.5 without taxes.

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Ms. Hamby gave a quiz. Two students’ work and the answer key are shown. Ms. Hamby accepts equivalent answers in any form.

Luden [163]

Answer:

Student A and Student B both answered 2 questions correctly.

See explanation below

Step-by-step explanation:

Note: that answers in the form:

$\frac{a}{-b}=\frac{-a}{b}=-\frac{a}{b}$

ARE ALL EQUIVALENT.

First of all, 4/5 is equivalent to 0.8 if we do long division.

and 19/20 is 0.95 if we do long division.

Now, Student A:

Both of the fractions are correct and the negative sign is equivalent and makes the answer correct, so both are correct.

For Student B:

Similarly, both answers are correct for this student as well, looking at the equivalence we showed first.

Also, "-" (negative) in front of the parenthesis and inside parenthesis here doesn't matter.

Hence,

Student A and Student B both answered 2 questions correctly.

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2 years ago

A function f on [a, b] is called a step function if there exists a partition P = {a = u0 < u1 < ··· < cm = b} of [a, b]

Arturiano [62]

Answer:

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Step-by-step explanation:

3 0

2 years ago

Solve for x 3x−91>−87 OR 21x−17>25

klasskru [66]

Answer:

x > 4/3

Step-by-step explanation:

The first inequality can be solved this way ...

3x -91 > -87

3x > 4 . . . . . . . add 91

x > 4/3 . . . . . . divide by 3

The second inequality has solution ...

21x -17 > 25

21x > 42 . . . . . . add 17

x > 2 . . . . . . . . . divide by 21

The solution set is the union of these overlapping solutions, so will be equal to the first solution:

x > 4/3

5 0

1 year ago

Read 2 more answers

There is a 0.9991 probability that a randomly selected 31-year-old male lives through the year. A life insurance company charge

jarptica [38.1K]

Answer:

a) Monetary values corresponding to the two events are:

-In case of surviving the year = -166$

-In case of a death in the year = 89834$

b) Expected value of the purchasing the insurance is -85 $

c) Yes, insurance company can make a profit with this policy.

Step-by-step explanation:

a) The man need to pay 166$ first to enroll the insurance policy. If he survives within a year, he will lose 166$. Otherwise, if he dies within a year he will profit 89834$.

b) Expected value of the purchasing the insurance as following:

-In case of surviving the year:

Value: -166$

Probability: 0,9991

-In case of death in a year

Value: 89834$

Probability: 0,0009

Expected value is E(x) = -166×0,9991 + 89834×0,0009 = -85 $

c) Lets consider that 10000 different 31 year old man enrolled to this insurance policy. According to probability of death, 9 out of 10000 man expected to be dead within the year. Therefore, company need to pay 9*90000 = 810000$ to their costumers. But, company will collect 10000*166=1660000$ from their costumers in the beginning of the year

So, it is expected that company is going to profit 1660000-810000=850000$ per year.

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2 years ago

Meredith started last week with $1,000 in her checking account. During the week, she wrote the checks below.

bazaltina [42]

Answer:

B. Meredith should have added the value of the paycheck.

Step-by-step explanation:

Meredith correctly identified the paycheck as a deposit (+), but she subtracted it from her balance when she should have added it.

5 0

1 year ago