Decimals
If
0.0481∙10^(-4)=4.81∙N
Then what is N?
N=10^(-6)
What number between is both a perfect square and a multiple of 7?
196
How many integers between 150 and 300 are multiples of 9?
17
Evaluate:
(250+25+2.5+0.25+0.025)÷(50+5+0.5+0.05+0.005)
(250+25+2.5+0.25+0.025)/((50+5+0.5+0.05+0.005) )=25(10+1+0.1+0.01+0.001)/5(10+1+0.1+0.01+0.001)
25/5=5
One owl hoots every 3 hours, second owl hoots every 8 hours, and a third owl hoots every 12 hours. If they all hoot together at the start, how many times during the next 80 hours will just two of the owls hoot together?
3 times
Suppose P and Q both represent prime numbers such that
5P+7Q=109
Find the value of the prime P.
19
The fraction
401/.205
is closest to which of the following numbers:
0.2,2,20,200,or 2000?
2000
A church rings its bells every 15 minutes, the school rings its bells every 20 minutes, and the day care center rings its bells every 25 minutes. If they all ring their bells at noon on the same day, at what time will they next all ring their bells together?
300 minutes after noon or 5:00PM
If
x, y and z
are positive integers and
2^x∙3^y∙5^z=54000
, what is the value of
x+y+z
?
10
Solve for p:
5/6=n/72 = (m+n)/84=(p-m)/120
110
Betty used a calculator to find the product . She forgot to enter the decimal points. The calculator showed . If Betty had entered the decimal points correctly, what would the answer have been?
0.192
0.075∙2.56=(75∙10^(-3) )∙(256∙10^(-2) )
(75∙256)∙10^(-5)
The product of 2 positive integers is 2005. If neither is 1, what is the sum of the two integers?
406
A garage has 17 cars and motorcycles. Altogether, there are 56 wheels. How many of each type of vehicle are there?
11 Cars and 6 Motorcycles
Curt mistakenly multiplied a number by 10 when he should have divided the number by 10. The answer he found was more than the answer he should have found. Find the original number.
3.4
The people at the party tried to form teams with the same number of people on each team, but when they tried to split up into teams of 2, 3, 5 or 7, exactly one person was left without a team. What is the smallest number of people (greater than 1) who could have been at the party?
211
Kayla adds the same number to both the numerator and denominator of the fraction . Her resulting fraction equals . What number did she add to both the numerator and denominator of her original fraction?
17