Robert read 20 pages out of a 300 page book. What percent has he read ? What percent does he still have to read ?

Mathematics

1 answer:

Setler [38]3 years ago

6 0

Answer: he has read 15% and still needs to read 85%

Step-by-step explanation: 300/20 is 15 so that’s the percent he has read. 100-15=85 so that’s the percent he still has left to read

You might be interested in

2n-3/5=5 solve for n

dezoksy [38]

N=14/5 thats the answer.

3 0

3 years ago

Read 2 more answers

A grocery store sells long grain rice for 2.49 per pound. Write an expression for the cost of y pounds of long grain rice.

OleMash [197]

Answer:

Step-by-step explanation:

Cost = 2.49 * y

You really should spend the time. Math is used everywhere.

3 0

2 years ago

WILL MARK BRAINLIEST + 10 POINTS<br> #14

3241004551 [841]

This question is asking "Where does cosine equal $\frac{\sqrt{3}}{2}$ ?"

Based on our unit circle values and the domain of the cos^{-1} function, we see that at 30 degrees, or $\frac{\pi}{6}$ , cosine is equal to $\frac{\sqrt{3}}{2}$ .

5 0

3 years ago

Select all that apply. the theorems in the lesson are followed by which of the following?

musickatia [10]

Answer: E

Step-by-step explanation: In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems, and generally accepted statements, such as axioms. A theorem is a logical consequence of the axioms. ... Many mathematical theorems are conditional statements.

7 0

3 years ago

Read 2 more answers

how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a

Solnce55 [7]

Answer:

Step-by-step explanation:

1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);

2. using the previous item it is possible to write the next equation:

5(x+20)=4*20+10*x; ⇒ x=4.

3. the required mass is 4 pounds.

5 0

3 years ago