Paul walked to school at 6 km/h and rode home from school at a speed 6 times as fast. If his total traveling time was 56 min., how many minutes did he spend walking?
No hint
Simplify: 9aˆ2-121bˆ2
The ˆ is a power symbol. If the answer is a square, you have to just write the equation twice in parenthesis
Solve: 4yˆ4-4yˆ3+yˆ2=0
For fractions write the decimal. Separate the answers with commas
Solve: aˆ3=81a
For a negative use the minus sign
-5-(-I-12I)+(-12)-(-5)
I means absolute value
2x-3/2xˆ3-11xˆ2+24x-18
/ means divide
Factor: 3xˆ3-3xˆ2-60x
Write the answer exactly as it looks on paper.
The length of a rectangle is 3 cm. less than twice the width. If the area of the rectangle is 35 cmˆ2, find the dimensions.
No periods after the cm and you can just put x instead of by.
Problem
Answer
Hint
Graphing: (-3, 4), (1, 2) Find the slope.
Write the decimal, its a nice decimal too.
IzI+10=28
Again I is an absolute value sign. z is lowercase and separate answers by commas.
Concrete can be made by mixing cement, sand and gravel in a ratio 3:6:8. How much gravel is needed to make 850m of concrete?
Its gravel not the other ingredients.
A mass of 25 g stretches a spring 10 cm. If the distance a spring is stretched is directly proportional to the mass, what mass will stretch the spring 22 cm?
No hint
A two-digit number is four times the sum of its digits. The tens digit is 3 less than the units digits. What is the number?
This one is easy
The numerator equals the sum of the two digits in the denominator. The value of the fraction is 1/4. When both numerator and denominator are increased by 3, the resulting fraction
To put a division symbol, use : not slash or some other means
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