WGU D126 Mathematics for Elementary Educators II EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
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WGU D126
WGU D126 Mathematics for Elementary Educators II EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
There are approximately
2 lbs of muscle for every
3 lbs of body weight of a certain animal. For a
66-lb
animal, how much of the weight is muscle?
66 Divided by 3 x 2 = 44
Robert weighs 160 lb on Earth ...
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WGU D126 Mathematics for Elementary Educators II
EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
There are approximately
2 lbs of muscle for every
3 lbs of body weight of a certain animal. For a
66-lb
animal, how much of the weight is muscle?
66 Divided by 3 x 2 = 44
Robert weighs 160 lb on Earth and 352lbs on another planet. Find Jeremy's
weight on that planet if he weights 180lbs on Earth.
Times 180 x 352 = 63360 then divide by 160 the answer is 396
There are six adult divers to each teenage driver in a city. If there are 14,832 adult
drivers how many teenage drivers are there?
14,832 divided by 6 = 2472
On a city map a rectangular park has a length of 2 in. If the actual length and
width of the part are 400 ft and 100 ft, respectively how wide is the park on the
map?
2 times 100 = 200 divide 200 by 400 = 1/2
On a map 1/2 in represents 4 miles if two cities are 18 inches apart on the map
what is the actual distance between them?
8 miles = 1 inch 8 miles times 18 inches = 144
If a certain recipe takes 1 1/4 c sugar and 4 c milk how much milk should be
added if the cook only has 1 cup sugar?
4 divided by 1 1/4 = 3 1/5
Vonna scored 48 goals in her soccer practice. If her success to failure rate was
3:2 how many times did she attempt a goal?
Times the failure rate of 2 x 48 goals kicked = 96 then divide by the number of
successes 96/3 = 32 then add total goals kicked 32 +48 = 80
Subtract when dividing
Square roots top and bottom higher number on top, lower number on bottom
2 1/2 is to 6 as x is to 18
2 1/2 x 18 = 45 then divide by 6 = 7 1/2
6 over 7 = 3x over 42
7x3x = 21x then 6x42 = 252 then divide by 21 = 12
rational number
any number that can be written as a fraction
irrational numbers
numbers that cannot be expressed in the form a/b, where a and b are integers and b
=0.
Intergers
whole numbers and their opposites
terminating decimal
a decimal whose digits end and the prime factorization of the denominator contains no
primes other then 2 or 5
, Decimals from Greatest to Least
write them all out in a row add 0's to make them all have the same decimal places, put
them in order by decimal places. Negatives are backwards
Fraction to a Decimal
Use F-D key on the calculator
3.36 with line over the 36
convert to 336.36 then subtract 3.36 from that and place it over 99 so = 333 over 99,
then reduce to lowest terms
Order from greatest to least with line over the repeating numbers
no line, one line over last number, line over 3 numbers, line over 2 numbers
Order from greatest to least negative numbers with line over repeating numbers
Same order as when they are positive numbers no line, one line over last number, line
over 3 numbers, line over 2 numbers
522.16 Rounded to the nearest hundred
500
522.16 Rounded to the nearest tenth
522.2
522.16 rounded to the nearest unit
522
Rounding numbers
left side is dreds, right side is dths
A baseball player gets 14 hits in 40 at bats, what percent of the at bats are hits?
Divide 14 by 40 = 35%
102 is 60% of what number?
Change the 60% to 0.6 and divide 102 by 0.6 = 170
98.0 is what percent of 24.5?
98 divided by 24.5 = 4 then 4 times 100 = 400%
68 is 40% of what number?
change 40% to a decimal .4 then divide 68 by 4 = 170
A person collected $2,800 on a loan of $2,400 they made 5 years ago, if the
person charged simple interest what was the rate of interest?
400-2,400xrx5 400=
2400 x 5 = 12000
Divide both sides by 400 x 12,000 = 0.0333
Change to a percent 0.0333 x 100 = 3.33
What is the square root of 28?
find common denominators then leave the 2 on the right to find the answer 2 to the
square root of 7 is the answer.
Square root power of 3 no number next to 54
answer is 3^3 = 27 with the number 2 inside the square root. because 2x27 = 54.
For a particular event 916 tickets were sold for a total of 5915. Students paid $5
per ticket and non students paid $8 how many student tickets were sold?
8 x 916 = 7328 then subtract 7328 from the total tickets sold of 5915 = 1413 then divide
by the difference between the cost of the tickets which is 1413/3 = 471
A box contains 95 coins only dimes and nickels . The amount of money in the box
is $7.05 how many dimes and nickels are in the box?
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