Simplify. 3/4-4z+5/4z-1/2+1/2z Enter your answer in the box.

For an experiment, the temperature of a liquid must stay above 60°F. The starting temperature of the liquid is 90°F. It is placed in a cooler, which lowers its temperature 3°F each minute.

Let m represent the number of minutes the liquid is in the cooler.

Which statement determines how many minutes the liquid can stay in the cooler?

The liquid must be in the cooler fewer than 10 minutes.

The liquid must be in the cooler fewer than 15 minutes.

The liquid must be in the cooler fewer than 30 minutes.

The liquid must be in the cooler fewer than 60 minutes.

Write and solve an equation.

On Monday Anna picked some apples. On Tuesday she picked 15 more apples than on Monday.

If Anna picked 32 apples on Tuesday, how many apples, a, did she pick on Monday?

Solve for a.

Enter your answer in the box.

Question

Aedan Perkins

Mathematics

4 October, 02:09

Simplify. 3/4-4z+5/4z-1/2+1/2z Enter your answer in the box.

For an experiment, the temperature of a liquid must stay above 60°F. The starting temperature of the liquid is 90°F. It is placed in a cooler, which lowers its temperature 3°F each minute.

Let m represent the number of minutes the liquid is in the cooler.

Which statement determines how many minutes the liquid can stay in the cooler?

The liquid must be in the cooler fewer than 10 minutes.

The liquid must be in the cooler fewer than 15 minutes.

The liquid must be in the cooler fewer than 30 minutes.

The liquid must be in the cooler fewer than 60 minutes.

Write and solve an equation.

On Monday Anna picked some apples. On Tuesday she picked 15 more apples than on Monday.

If Anna picked 32 apples on Tuesday, how many apples, a, did she pick on Monday?

Solve for a.

Enter your answer in the box.

+1

Answers (1)

Know the Answer?

Meadow David · Answer 1

3/4-4z+5/4z-1/2+1/2z

(simplify fractions by taking away) 3/4-1/2=1/4

(simplify again but only fraction with a denominator of z) 5/4z+1/2z=7/4z

so its 1/4+7/4z-4z

OR

I don't know if you're supposed to change by taking away 4z which is the same as 1/4z.

if so then

7/4z (previous calculation but you can use the beggining fractions if you want just add all 3 fractions with z as a denominator) - 1/4z=6/4z

so its 1/4+6/4z

I don't know the others sorry