Questions in mathematics

Questions in mathematics

[Free] One-fourth of the opposite of the difference between five and a number is less than 20.

[Free] Shaunda said that buying 4 towels for $17 was a better buy than buying 2 towels for $9. She found her answer by doubling the terms in the ratio 9:2 and comparing the first term in the ratios. Is she correct? Use unit prices to support your answer.

[Free] A laptop costs $550. You get a coupon in the mail for 30% off. If you use the coupon, what is the sale price for the laptop?

[Free] Eight friends purchase various supplies for a camping trip and agree to share the total cost equally. They spend $85.43 on food, $32.75 on water, and $239.66 on other items. How much does each person owe?

[Free] Suppose Faye plans to fill packets with 60 beads after deciding not to add any yellow beads to the mix. If you want to find out how many packets she can put together, what hidden question or questions would you need to ask? Explain.

[Free] A road sign is in the shape of a heptagon (7 sides). What is the measure of each angle on the sign? Round to the nearest tenth.

[Free] Five times the sum of three consecutive integers is 150. What are the integers?

[Free] Given the following perfect square trinomial, fill in the missing term. \[ x^2 - 16x + \, \_\_\_\_ \]

[Free] If you had to subtract 426 from 913, how many times would you need to regroup? How can you tell?

[Free] Class A folds 160 fewer paper cranes than Class B and 2/3 as many paper cranes as Class C. Class B folds 92 more paper cranes than Class C. How many paper cranes does Class B fold?