I'd say (a) = 52.5 minutes or 52 minutes and 30 second
(b) = 45 minutes
Answer:
d
Step-by-step explanation:
Using the rule of exponents
=
, then
=
= 
Answer:
The least number of questions a student can answer correctly is 32
Step-by-step explanation:
Let
x -----> the number of questions answered correctly
y ----> the total number of questions on a test

we know that
For a student to earn and A or B on a test, the ratio must be greater than or equal to 0.8
so

For y=40 questions
Find the value of x
substitute

solve for x
Multiply both sides by 40


so
The least number of questions a student can answer correctly is 32
<u><em>Verify the ratio</em></u>
For x=32, y=40

Compare
----> is ok
Answer:
epresented on the horizontal axis and elevation on the vertical axis. For each situation, decide if the ... (from Unit 3, Lesson 4). 4. Each square on a grid represents 1 unit on each side. Match the numbers with the slopes of the lines. 1. - 7 / 1. C.
Step-by-step explanation:
Answer: Its B (20 sq. units) <em>Unsure </em>