Write a decimal number that, when rounded to the nearest tenth, is 0.3.

Answers

Answer 1

Answer: Well Someome said it can be 0.29, but I think it can be 0.30

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The price of an item has dropped to $102 today. Yesterday it was $120. Find the percentage decrease.

Answers

Using cross multiplication, 102/120=x/100 ---> 120x=10200 divide the entire problem by 120 ---> 85. 102 is 85% of 120, so the item has dropped in price by 15%

Final answer:

The decrease in price is $18. The percentage decrease is calculated by dividing the decrease by the original price and multiplying by 100, which results in a 15% decrease.

Explanation:

The problem involves finding the percentage decrease of a price from $120 to $102. The first step is to find out how much the price decreased. This involves subtracting the new price ($102) from the original price ($120), which gives us an amount of $18. Now, the percentage decrease is computed by dividing this decrease ($18) by the original price ($120) and multiplying the result by 100. Hence, Percentage decrease = ($18 / $120) * 100% = 15%.

Therefore, the price has decreased by 15% from yesterday to today.

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(05.02 LC)Solve the following system:

y = x + 3
2x + y = 9

(2, 5)
(5, 2)
(−2, 5)
(2, −5)

Answers

Your Answer: A.) (2 , 5) I also provided the steps.

Hope this helps y'all :)

What is the value of 8 rolls of quarters if there are 40 quarters in each roll

Answers

Answer: 8,000 cents

Step-by-step explanation: To solve this problem, let's first begin by multiplying how rolls of quarters there are × how many quarters are in each roll.

Since there are 8 rolls of quarters and each roll contains 40 quarters, we multiply 8 × 40 and we get a product of 320.

Now, the question we should be asking ourselves is what is the total value of 320 quarters.

We know we have 320 quarters and each quarter is worth 25 cents so we just take 320 × 25 which gives us 8,000 cents.

The 320 represents our number of quarters, this 25 represents the value of each quarter, and this 75 represents their total value.

4 quarters is 1 dollar. there is 10 dollars in one roll, so there are 80 dollars in the 8 rolls of quarters

Gary bought a car for $40,000. If V = 40,000(.85)t represents the value of the car after t years, how long will it take the car to be worth less than one-fourth of its purchase price? A) 4 years B) 6 years C) 8 years D) 9 years

Answers

Answer:

D) 9 years.

Step-by-step explanation:

We have been given that Gary bought a car for $40,000 and equation $V=40,000(0.85)^t$ represents the value of the car after t years.

First of all we will find the one-fourth of 40,000.

$\text{One-forth of car's purchase price}=(\$40,000)/(4)$

$\text{One-forth of car's purchase price}=\$10,000$

To find the time it will take the car to be worth less than one-fourth of its purchase price, we will substitute V=10,000 in our given equation.

$10,000=40,000(0.85)^t$

Let us divide both sides of our equation by 40,000.

$(10,000)/(40,000)=(40,000(0.85)^t)/(40,000)$

$0.25=0.85^t$

Let us take natural log of both sides of our equation.

$ln(0.25)=ln(0.85^t)$

Using natural log property $ln(a^b)=b*ln(a)$ we will get,

$ln(0.25)=t*ln(0.85)$

$(ln(0.25))/(ln(0.85))=(t*ln(0.85))/(ln(0.85))$

$(-1.3862943611198906)/(-0.1625189294977749)=t$

$8.530048563597=t$

Upon rounding our answer to the nearest year we will get,

$t\approx 9$

Therefore, it will take 9 years the car to be worth less than one-fourth of its purchase price and option D is the correct choice.

Neil decides to go to a technical college for 18 months to get a degree in computer networking. There are 6 school quarters in the program with a tuition of $530 each. Books for the entire program cost $1,800. How much will it cost Neil to get his degree?a.

$3,180

b.

$3,920

c.

$4,980

d.

$11,340

Answers

The total cost for Neil to get his degree is $4980 so option (C) will be correct.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Summation = addition of two or more numbers or variable

For example = 2 + 8 + 9

Subtraction = Minus of any two or more numbers with each other called subtraction.

For example = 4 - 8

Division = divide any two numbers or variable called division.

For example 4/8

Multiplication = to multiply any two or more numbers or variables called multiplication.

For example 5 × 7.

Total tuition fees;

6 × 530 = $3180

Books cost = $1800

Total cost to get a degree = Total tuition fees + Books cost

Total cost to get a degree = 3180 + 1800 = $4980.

Hence "The total cost for Neil to get his degree is $4980".

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6(530) + 1800 = 3180 + 1800 = 4980 <===

Anyone....please!!The largest frog in the world is the goliath, found in West Africa. This type of frog can grow to be 12 inches long. The smallest frog in the world is about 4% as long as the goliath. What is the approximate length of the smallest frog in the world?

Answers

Multiply 12 by 4%, or 4/100, and 4/100 simplifies to 1/25. 12/1 x 1/25 = (12 x 1)/(1 x 25) = 12/25, which equals 0.48. So, the smallest frog is 0.48 inches long, but can be rounded to 0.5 inches long.

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