A roast was cooked at 325 Fahrenheit in the oven for 4 hours. The internal temp. rose from 32 Fahrenheit to 145 Fahrenheit. What was the average rise in
... [Show More] temperature per
hour?
percent increase - correct answer subtract old amount from new amount, divided by original amount times 100
([new amount - old amount]/original amount * 100)
percent decrease - correct answer subtract new amount from old amount, divided by original amount times 100
([original amount - new amount]/original amount * 100)
Amount increase or decrease - correct answer multiply original price times % mark up, or mark down
(original price * percent mark up or mark down)
original price equals - correct answer divide new price by whole amount minus % mark up, or mark down
(new price/[whole - percent mark down or mark up])
finding ratio equivalents - correct answer cross multiply with given ratio and information
ratios; finding the whole when a total is given - correct answer convert the ratio to a fraction by adding together the parts of the ratio, this sum is the whole and will be the denominator to the parts to cross multiply.
(ratio 5:4 = 9; 4/9 and tot 90 is 4/9 = x/90; x = 40)
direct proportion - correct answer two quantities that are directly proportional will increase or decrease in tandem. They change in the same direction. For direct proportions, solve by cross multiplying.
change in opposite directions. As one increases, the other will decrease. For indirect proportions, examine the rates at which the two quantities change, then solve using a fractional equation.
military time 0000 is - correct answer 12:00am, regular time
military time 0100 is - correct answer 1:00am, regular time
military time 1200 is - correct answer 12:00 noon, regular time
military time 2300 is - correct answer 11:00pm, regular time (subtract 12 when not beginning with 0; 23 - 12 = 11)
equations with more than one variable - correct answer example: solve for y: (4x + 3y = 3x + 2y).
combine like terms: (3y - 2y = 3x - 4x). solve for y: (y = -x)
adding & subtracting in algebraic equations - correct answer only like terms can be added or subtracted. A like term is one with the same variable or combination of variables. Constants are numbers without variables attached, and those can be grouped together as well.
multiplying in algebraic equations - correct answer first multiply the coefficients. Then "multiply" the variables by ADDING together the variable's exponents.
ADDING together the variable's exponents. ( [3 x4 y2 z][2 y4 z5]= 6 x4 y6 z6)
monomial times polynomial - correct answer First multiply the coefficients. Then
( [2y2][y3 + 2 xy2z = 4z] = 2y5 + 4xy4z + 8y2z)
binomial times binomial - correct answer Remember foil: first, outer, inner, last. Combine like terms by adding/subtracting.
binomial times polynomial - correct answer multiply both terms in the binomial, one by one, with each term in the polynomial creating a first term and a second term, then solve by adding the two terms together.
roman numeral system - correct answer System of writing numbers using a combination of: M, D, C, L, X, V, I; numerals are combined to form numbers through addition. A numeral with a smaller value placed before a larger value, means the smaller # is then subtracted.
adding and subtracting decimals - correct answer line up decimals, and add or subtract
multiplying decimals - correct answer Multiply as whole numbers, count decimal places in each number and add them together. Move the decimal place to the left this many places in the product.
(Example: 0.002 x 3.4 or 2 x 34 = 68, plus four decimal places equals 0.0068) [Show Less]