Q and A for the topic: General

There are 120 seats in the cinema. Eighth grades come with the same number of students. If three grades come, there will be 54 free seats left. How many seats will be left if four grades come?

Determine the probability that when throwing a die, it will land: a) number 5 b) a number less than 7 c) number 1 or 4

Ivan learned 15 out of 20 questions. What is the probability that the student got a question he did not learn?

561-( t+154)=137

431+(B-29)=678

Vicente counted 2,367 seashells at the beach. Then he realized he made a mistake and subtracted 400 seashells. How many seashells did he actually count?

Find the critical value Za/2 needed to construct a confidence interval with the given level Level 99.7%

i need 3 addition or subtraction problems with 2 or 3 digit number that equal 5

i need 3 rounding problems that equal 9

72 forth graders are going on a camping trip. 9 chaperones are also going. If a van can seat 12 people how many vans are needed?

81 divided by 12

Factor the expression using GCF 39-13

Is 4 a factor of 1,671,349? How do you know without multiplying or dividing?

Is 3 a factor of 711? How do you know without multiplying or dividing?

What is the amount of an annuity if the payments are $60 at the end of each month for 10 years at 3.5% interest computed monthly?

What is the present value of an annuity if payments of $434.00 are made at the end of every month for 15 years at an interest rate of 7.5% per year computed monthly?

4x+5 +7 = 9 the plus sign next to the 5 is small

A water pipe runs diagonally under a rectangular garden that is 7 feet longer than it is wide. If the pipe is 13 feet long what are the dimensions of the garden

Two angels are supplementary if the sun of their angels is 180 degrees. One of the two supplementary angles is 8 degrees less than three times the other. Find the measure of each angle.

Using dimensional analysis and showing your work calculate how many nickels are in twenty dollars