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If the sum of three numbers is 98 and the ratio of the first one to the second is 2 to 3 ans the ratio of the second to third is 5 to 8 what is the value of the second number?
Wiki User
∙ 15y ago
Let number 1 be: X
number 2 be: Y number 3 be: Z X+Y+Z=98 3X=2Y 8Y=5Z Therefore by substituting you get: 12X=5Z
X+(3/2)X+(12/5)X= 98 10X+15X+24X=980 49X=980; X=20 Then 3(20)=2Y; Y=30 And 12(20)=5Z; Z=48
== == == == 1st number = 20
2nd number = 30
3rd number = 48 Sum of the numbers = 98 1st:2nd = 2:3
2nd:3rd = 5:8 This reallyy doesn't help me!!! ): help, help, help!!!!
Wiki User
∙ 15y ago
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How can you simplify a ratio?
Find a common number that you can divide both by, just like simplifying fractions. Say you have a ratio of 2:4. Both of those numbers are divisible by two, so if you divide both by two you get 1:2. Generally you want to have both numbers as whole numbers (i.e. no fractions or decimals) Find the GCF of the numbers and divide them both by it. If the GCF is 1, the ratio is in its simplest form. If the ratio is between two decimals, multiply them by whatever power of ten will eliminate the decimals. Then proceed with the GCF.
How do you simplify the ratio 5.2 to 5.6?
If you are dividing, you can use a calculator or long division to find a decimal ratio. But to find a whole number fraction (ratio), you have to express both number as whole numbers. Multiply by a factor of 10 to move the decimal over to the right as many places as you need to, multiplying both numbers by the same amount. Then divide by the Greatest Common Factor. 5.2 to 5.6 (x 10) = 52 to 56 (13 x 4 to 14 x 4) = 13 to 14 and the ratio is 13 : 14
What is an ordered list of numbers or objects called?
ratio
Why is the probability of an event always a number between 0 and 1?
The probability of an event is defined as the ratio of favourable outcomes to total outcomes. In the case of discrete distributions these will be represented by numbers, while for continuous distribution they will be measured as areas. In either case, the first measure is non-negative and the second is positive and so the probability is greater than 0. Also, the number of favourable outcomes cannot be greater than the total so the probability must be at most 1.
What is the difference between absolute deviation and relative deviation?
absolute deviation is a difference between say two numbers. The result has the same units as the two numbers have. Relative deviation is a ratio and so it is a pure number without any units.
What are a geometric sequence?
A geometric sequence is an ordered set of numbers such that (after the first number) the ratio between any number and its predecessor is a constant.
What does value of a ratio mean in math?
The value of a ratio - of two numbers - is the value of the first divided by the second.
What is the first number of a ratio called?
The answer is the antecedent and the second number is the consequent.
How do you write a ratio as a percent?
A percent is a number relative to 100. Therefore, we want the number 100 in the ratio. In order to do that, we need to multiply BOTH numbers in the ratio by a number so that the second number of the new ratio is equal to 100. The first number of the new ratio is the percent. For example: 4:5 = [4*20]:[5*20] = 80:100 = 80%
How do you find the ratio of two areas?
In order to find the ratio of two areas, you times it by the number of a number to get the number of the numbers numbers number, and that number divide by the first number which is 6 and then do the square root of the numbers number to get that number, which you will times by 2.
What is 5.75 as a percentage?
A percentage is a form of ratio. A ratio requires two numbers. Unless you have the second number, a percentage cannot be determined.
What ratio is 42 of 70?
To find the ratio of a fraction, you first need to simplify the fraction. In this case, both numbers can divide by 14, and so we can simplify it to 3/5. To turn this simplified fraction into a ratio, the first number is the numerator, and the second number is the denominator minus the numerator. Thus, the ratio of 42/70 would be 3:2
What is a number that cannnot be written as a ratio of two numbers?
An irrational number is a number that cannot be written as a ratio of two numbers.
Can a real number be written as a ratio in a fraction?
No, only rational numbers can be written as a ratio of two integers (the second being non-zero). The majority of real numbers are irrational and they cannot be so written.
How do you find out the ratio of 70?
There's no such thing as the ratio of only one number. A ratio is a comparison of two numbers. The ratio of two numbers is their 'quotient' ... the number you get when you divide one number by the other one.
The ratio of one number to another is the?
the ratio of a number to another is the quotient when the first number is divided by the second number (not zero) hope this helps, i found the answer on my books glossary good luck!!
Are all terminated in repeating decimals rational numbers and why?
Such numbers can be written in the form of a ratio of two integers. In the first case as a ratio of an integer and a power of ten, and in the second case as a ratio of an integer and one less than a power of ten. Since the denominators in both cases are non-zero integers, these are rational numbers.Examples:0.356 = 356/10000.356356356... (repeating) = 356/999In the first case the number of zeros after 1 is the number of digits after the decimal point. In the second case, the number of 9s is one fewer than the length of the repeating string.
