$MathMaster logo$

MathMaster

Home
general
12 3 7 5

Question

12(3+7)-5

259

likes

1295 views

Answer to a math question 12(3+7)-5

$Expert avatar$

4.7

110 Answers

12\left(3+7\right)-5=12\times10-5=120-5=115

Frequently asked questions (FAQs)

What is the equation to find the area of a circle?

+

Math question: What is the equation of a parabola that opens upwards with the vertex at (2,5)?

+

Math question: What is the amplitude of the sine function f(x) = sin(x)?

+

New questions in Mathematics

One contestant on a game show has 1,500 points and another contestant has -250 points. What is the difference between the scores of the contestants?

QUESTION l. An investigation has been carried out in a region to know the perception of "citizen insecurity" of its inhabitants. 1,270 people in the region were interviewed, of which 27.1% responded that it was a "serious" problem. Knowing that this opinion was previously held by 25.3% of the population of that region, we want to know if said opinion has changed significantly for a confidence level of 97.2%. Taking this statement into account, the following is requested: a) Critical value of the contrast statistic. b) Solve the hypothesis test and indicate what conclusion we can reach. c) P-value of contrast.

A person who weighs 200 pounds on earth would weigh about 32 pounds on the moon. Find the weight of a person on earth who would weigh 15 pounds on the moon.

Using the integration by parts method, calculate the integral of [x².ln(1/x)]dx: x 4 /4 x³/6 x 4 /8 x³/3 x 4 /6

The bus one way of the road which is 10km is heading with speed of 20km/h ,then the bus the other 10km is heading with speed of 60km/h. The middle speed of the road is it equal with arithmetic speed of the v1 and v2 ?

4. Show that if n is any integer, then n^2 3n 5 is an odd integer

At the dance there are 150 boys the rest are girls. If 65% are girls what is the total amount in the room

The grading on a $159,775 house comes to $3974.75. What percent of the total cost is this? (Express your answer to the nearest hundredth percent.)

How to factorise 5y^2 -7y -52

Consider mixing 150 ml, 0.1M, HCI with 100 ml, 0.2M, KOH solution. Determine the pH of final solution.

Solve the following 9x - 9 - 6x = 5 + 8x - 9

Convert (324)𝑓𝑖𝑣𝑒 into base-ten

Recall that with base- ten blocks, 1 long = 10 units, 1flat = 10 long, and a block = 1 unit. Then what number does 5 flat, 17long and 5 units represent represent ?

The perimeter of a rectangular rug is 42 feet. The width is 9 feet. What is the length?

Define excel and why we use it?

The car with an irresponsible driver starts to brake when it goes through a red light. When passing the traffic light, he does so at a speed of 115 kph in the right lane. Further ahead, 70 meters from the traffic light, a child is crossing the street and falls. If the effect of the car's brakes is equivalent to a deceleration of magnitude 5.7m/s². Is the child hit by the car or not? How far from the traffic light does the car stop?

Construct a set of six pieces of data with mean, median, and midrange of 67 and where no two pieces of data are the same.