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makvit [3.9K]
3 years ago
10

In May, Jim’s lunch account has a balance of $58.19. If lunch costs $2.74 per day, how many days will Jim be able to buy lunch b

efore his account runs out of money?
Mathematics
1 answer:
kykrilka [37]3 years ago
6 0

Answer:

<u>21 days.</u>

Step-by-step explanation:

To solve this, divide the cost of lunch from the initial amount in his account. Therefore:

58.19 = 2.74x ('x' being the number of days)

Divide both sides by 2.74:

\frac{58.19}{2.74} = \frac{2.74x}{2.74}

x ≈21.24, or 21 days.

***Since you use whole numbers when counting days, round down to determine the amount of days he can buy lunch. Thus, he can buy lunch for <u>21 days.</u>

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Answer:

1,776

Step-by-step explanation:

1. There are <u>37</u> children in the classroom

2. Each student will get <u>48</u> pencils

3. The teacher wants to give 48 pencils evenly to 37 children

4. 48 x 37 = <u>1,776</u>

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Nathan earns $1500 a week. Calculate his new weekly wage if he receives a pay rise of 20%
bazaltina [42]

Answer:

$1800

Step-by-step explanation:

1. Approanch

An easy way to calculate one's salary after they recive a raise is to, convert the percent that one's salary is increased into a decimal; divide the percent by 100. Then multiply the increase as a decimal by the original salary, to attain the amount the salary is raised by. Finally add the amount the salary is raised by to the original salary to find the new salary. A quicker way to do this is to convert the percent by the salary is increased into a decimal. Then add 1 to that number. Finally one will multiply that number by the original slary and get the new salary.

2. Solving

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Raise; 20%

<u>a. convert the raise as a percent into a decimal, then add 1</u>

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0.2 + 1 = 1.2

<u>b. multiply the number by the original salary</u>

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Yanka [14]

Answer:11.7

Step-by-step explanation:

1. Recognize variables. Starting price is 9, it’s increasing by 1.5% each year, the question asks for the price in 20 years.

2. Convert percentage to decimal. Most calculators won’t understand multiplying by percentages, and instead will understand multiplying by decimals. A decimal is something we can easily work with. It is more commonly taught to work with decimals as well. With that said 1.5% equals .015. (The number in the ones place in the percentage is always in the hundredths place when converted to a decimal, the tens to the tenths, the hundreds in the percentage to the ones place in the decimal, the hundredths in the percentage to the ten thousandths in the decimal. Basically, every individual number [the 5 in 1.5] moves two spaces to the right when going from percentage to decimal form, likewise two to the left going from decimal to percentage form. 23%=.23, 104%=1.04, 0.5%=.05, 1.234%=.01234)

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