Question

Adam solved 12 math problems and 42 minutes if he continues at this pace, how many minutes will it take him to solve 20 math problems?

209

likes

1045 views

Answer to a math question Adam solved 12 math problems and 42 minutes if he continues at this pace, how many minutes will it take him to solve 20 math problems?

$Expert avatar$

Sigrid

4.5

119 Answers

1. Given ratio:

\frac{12 \text{ problems}}{42 \text{ minutes}}

2. Let $ x $ be the number of minutes to solve 20 problems:

\frac{20 \text{ problems}}{x \text{ minutes}}

3. Equate the ratios:

\frac{12}{42} = \frac{20}{x}

4. Cross-multiply:

12x = 42 \times 20

5. Solve for $ x $:

12x = 840

x = \frac{840}{12}

x = 70

Therefore, it will take $ x = 70 \text{ minutes} $.

Frequently asked questions (FAQs)

What is the value of f(x) at x = 3 for the exponential functions f(x) = 10^x and f(x) = e^x?

Question: Solve the cubic equation x^3 - 5x^2 + 7x - 3 = 0.

Math question: What is the argument (in radians) of the complex number (3 + 4i)?

New questions in Mathematics

-x+3x-2,si x=3

a ferry travels 1/6 of the distance between two ports in 3/7 hour. the ferry travels at a constant rate. at this rate, what fraction of the distance between the two ports can the ferry travel in one hour?

Use the digits of 1,9,2,3 to come up with all the numbers 98 and 95

Solve this mathematical problem if 3/5 of a roll of tape measures 2m. How long is the complete roll?

If the midpoint of point A on the x=3 line and point B on the y=-2 line is C(-2,0), what is the sum of the ordinate of point A and the abscissa of point B?

4x/2+5x-3/6=7/8-1/4-x

According to a survey in a country 27% of adults do not own a credit card suppose a simple random sample of 800 adults is obtained . Describe the sampling distribution of P hat , the sample proportion of adults who do not own a credit card

3. A rock is dropped from a height of 16 ft. It is determined that its height (in feet) above ground t seconds later (for 0≤t≤3) is given by s(t)=-2t2 + 16. Find the average velocity of the rock over [0.2,0.21] time interval.

A warehouse employs 23 workers on first shift, 19 workers on second shift, and 12 workers on third shift. Eight workers are chosen at random to be interviewed about the work environment. Find the probability of choosing exactly five first -shift workers.

The simple average of 15 , 30 , 40 , and 45 is

If a|-7 and a|9, then a|-63

9.25=2pi r solve for r

Fill in the P(X-x) values to give a legitimate probability distribution for the discrete random variable X, whose possible values are -5 ,3 , 4, 5 , and 6.

Calculate the difference between 407 and 27

A contractor gives a bank note for $10250 at a rate of 1% for one month. How much interest is charged for 4 months?

To find the increased amount on a standard term deposit with the following conditions: starting amount: BGN 13000, type of deposit: annual, annual compound interest rate: 1.4%, after 4 years;

Find sup { x∈R, x²+3<4x }. Justify the answer

Solve for B write your answer as a fraction or as a whole number. B-1/7=4

How many cards do you expect to pull from a poker deck until you get an ACE?

Sally’s sales for last Sunday were $1,278. That was an increase of 6.5% over her sales for the previous Saturday. What were her sales for the previous Saturday?

Adam solved 12 math problems and 42 minutes if he continues at this pace, how many minutes will it take him to solve 20 math problems?

Answer to a math question Adam solved 12 math problems and 42 minutes if he continues at this pace, how many minutes will it take him to solve 20 math problems?

You might be interested in