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2 years ago

Does someone mind helping me with this question? Thank you!

Mathematics

2 answers:

Verizon [17]2 years ago

4 0

Answer:

3 is the answer.

Step-by-step explanation:

subtract 3 from 24 we have 21. divide 21 by 7 so 3

enot [183]2 years ago

4 0

<h2>Let's solve for x ~ </h2>

$\qquad \sf \dashrightarrow \: 7x + 3 = 24$

$\qquad \sf \dashrightarrow \: 7x = 24 - 3$

$\qquad \sf \dashrightarrow \: 7x = 21$

$\qquad \sf \dashrightarrow \: x = 21 \div 7$

$\qquad \sf \dashrightarrow \: x = 3$

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Meryl needs to add enough water to 11 gallons of an 18% detergent solution to make a 12% detergent solution. Which equation can

notka56 [123]

We're measuring a quantity of pure detergent.

We start with 11 gallons of an 18% solution. 18% of that, or 1.98 gallons, is pure detergent, and the rest of these 11 gal. is water: 9.02 gal. We will add x gallons of water to this solution to obtain (11+x) gallons of a 12% solution.

We need to find x to satisfy this equation:

(11 gallons + x)(0.12) = (11 gallons)(0.18)

Div. both sides by 0.12, we get (11 gallons + x) = (11 gallons)(1.5)

Mult. both sides by 10, we get 110 gallons + 10x = (11 gallons)(15)

Then 10x = 165 gallons - 110 gallons, or 55 gallons.

Div. both sides by 10, we get x = 5.5 gallons (answer)

6 0

3 years ago

25−m if m=9<br> Enter the correct answers in the boxes.<br><br> 25 − <br> =

Jet001 [13]

Answer:

Step-by-step explanation:

If m=9 then you replace the m in the equation and minus 9 from 25 which then equals 16.

7 0

3 years ago

Read 2 more answers

A company can buy packages of 500 sheets of paper for $4. At that rate, how much paper can be bought for $2000? Group of answer

Alexandra [31]

Your answer is 250,000. There are two ways to do this problem.

1) Solve 500/4 to find out how many sheets of paper you get per every dollar. — Your answer is 125 sheets for $1. Then you multiply that answer by 2000, and get 250,000. Which means you get 250,000 sheets of paper for $2000.

2) You can divide 2000 by 4 & that gets you 500, you can then multiply that by 500 & you will get 250,000.

Hope this helps.

5 0

3 years ago

Rod picks apples at the rate of 12 apples every minute. How many apples would apples would he pick in 31 minutes?

Artist 52 [7]

372 apples in 31 min

3 0

3 years ago

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The Vilas County News earns a profit of $20 per year for each of its 3,000 subscribers. Management projects that the profit per

Mekhanik [1.2K]

Answer:

850

Step-by-step explanation:

Current profit per year = $ 20

Number of subscribers = 3000

For each additional subscriber over 3000, the profit will increase by 1 cent or by $ 0.01. For example, for 3001 (3000 + 1) subscribers, the profit will be $ 20.01 per year. Similarly, for 3002 (3000 + 2) subscribers, the profit will be $20.02 per year and so on.

So, for x additional subscribers over 3000, the profit will increase by 0.01(x). i.e. for (3000 + x) subscribers, the profit will be $(20 + 0.01x)

Since, profit per each subscriber is $(20 + 0.01x), the profit for (3000 + x) subscribers will be:

Total profit = Number of subscribers x Profit per each subscriber

Total profit = (3000 + x)(20 + 0.01x)

We want to calculate how many subscribers will be needed to bring a profit of $109,725. So, we replace Total profit by $109,725. The equation now becomes:

$109725=(3000+x)(20+0.01x)\\\\ 109725=60000+30x+20x+0.01x^{2}\\\\ 0.01x^{2}+50x+60000-109725=0\\\\ 0.01x^{2}+50x-49725=0\\$

Using quadratic formula, we can solve this equation as:

$\\ x=\frac{-50 \pm \sqrt{50^{2}-4(0.01)(-49725)}}{2(0.01)}\\\\ x=\frac{-50 \pm67}{0.02}\\\\ x=\frac{-50-67}{0.02} , x=\frac{-50+67}{0.02}\\\\ x=-5850, x=850$

x = -5850 is not a possible solution as this would make the total number of subscribers to be negative. So we reject this value.

Therefore, the answer to this question is 850. 850 more subscribers are needed to being a total profit of $109,725

8 0

4 years ago