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16 Cards in this Set
- Front
- Back
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how do u find the ratio of a number?
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divide the fraction or ratio by the other number. If the other number is a whole number make it Into to a fraction, invert then multiply.
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Convert a fraction into a decimal.
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find the least common denominator then divide both the top and bottom by it and then simplify further if need be.
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Converting from decimal form to percentages is done by?
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multiplying the decimal by 100%
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How do u find the receprocal of any number likes use X.
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make X into a Fraction. X/1 then write the inverse which is 1/X. This can be proven because if u multiply the fractions together they will give you a product of 1.
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Simplify (3x)^3
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(27x^3)
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what is the process for solving a positive number or base to the negative power of say 3.
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multiply the inverse of the base by the inverse if the base 3 times. That's the answer.
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X^0. X raised to the power of 0. What is the answer.
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The answer is 1. Anything raised to the power of 0 is 1.
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what is the formula to multiply two numbers with exponents? Say ten to the power of two multiplied by ten to the power of five?
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Simply add the exponents together. answer is ten to the power of seven.
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How do you simplify 10 to the power of 2 +7.
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answer 10^9. Ten to the power of 9
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any number multiplied by ten to the power whatever is simply the number you are multiplying by ten then you move the decimal place either positive or negative the number of the exponent of ten.
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true.
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formula to calculate distance traveled.
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rate X time = distance
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formula to calculate time. How long will it take to travel X distance at Y mph?
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distance/rate=time
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how do you convert a decimal into a fraction? say 0.0625 into a fraction?
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move the decimal point over to make this a whole number. Then draw a line under the number and write a 1 with the zeros the number of decimal places needed to make the decimal into a whole number.
0.0625/1 = 625/10,000 then simplify. 1/16 |
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how many degrees of a circle is 15 percent of the circle? write the formula.
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(percent)(360)= degree of the circle.
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if 18 is 15% of 30% of a certain number, what is that number?
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18=0.15(0.30n)
18=0.045n 400=n |
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you have aright triangle what is the degree of each side?
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45, 45, 90 degree
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