Algebra Answers

Nellies Cafe offers two kinds of espresso: single shot and double shot. Yesterday afternoon, the cafe sold 39 single shot espressos and 26 double shot espressos. What percentage of the espressos were single shot?

An element with mass 630 grams decays by 18.8% per minute. How much of the element is remaining after 7 minutes, to the nearest 10th of a gram?

A new car is purchased for 20700 dollars. The value of the car depreciates at 11% per year. What will the value of the car be, to the nearest cent, after 11 years?

Starting from 100 ft​ away, your friend skates toward you and then passes you. She skates at a constant speed of 20 ​ft/s. Her distance d from you in feet after t seconds is given by d=100−20t. At what times is she 60 ft from​ you?

If 3 is greater then 2,then 3+5 is greater than2+5. What property is being used?

His 13- foot ladder leans against the building at a point that is 11.3 feet above the ground.

At what height would a 15-foot ladder touch the building if both ladders form the same angle with the ground? Round your answer to the nearest tenth.

____________ feet

A 15-foot ladder leaning up against a wall at the same angle as the 13-foot ladder would touch the wall at _______ feet.

Explain how you determined your answer (explain all work used to determine the answer).

Find the angle that the 15-foot ladder makes with the building. Round your answer to the nearest tenth. ____________ degrees

3600 dollars is placed in an account with an annual interest rate of 5.5%. To the

nearest year, how long will it take for the account value to reach 7800 dollars?

1

Which best describes the given compound propositions [p ∧ (q v r)] <-> [(p ∧ q) v (p ∧ r)]

Given the quadratic relation y = x^2 + 2x - 15

Does the relation have a maximum or minimum value?

please show me how you got the answer and make sure it is right

The curve formed by a rope bridge can be modeled by the relation y = x^2 - 11x + 10, where "x" is the horizontal distance in metres and "y" is the height in metres. What is the horizontal distance from one end of the bridge to the other end?

show me how