Answer: there are 10 multiple choice questions and 15 short-answer questions
Step-by-step explanation:
Let x represent the number of multiple choice questions in the test.
Let y represent the number of short-answer questions in the test.
If the test has 25 questions, it means that
x + y = 25
Multiple-choice questions are worth 2 points, and short-answer questions are worth 4 points. The test is worth a total of 80 points. It means that
2x + 4y = 80 - - - - - - - -1
Substituting x = 25 - y into equation 1, it becomes
2(25 - y) + 4y = 80
50 - 2y + 4y = 80
- 2y + 4y = 80 - 50
2y = 30
y = 30/2 = 15
x = 25 - y = 25 - 15 = 10
A. The number of multiple-choice questions plus the number of short-answer questions is 25.
75√109.5=1.46
1.2√79.1=65.92
5.2√9.16=1.76
17.1 =17.1
7.83 x 10^-7 (the *^* is where the power goes)
Answer: p=-7
Step-by-step explanation:
To solve for p, you want to isolate the variable, get p alone. You would use different algebraic properties to do so.
30+6p=7p+42-5
30+6p=7p+37
-7=p
p=-7
Answer:
see below
Step-by-step explanation:
There are 7 divisors of 64. Each represents a possible number of bags of cookies:
- 1 bag of 64 cookies
- 2 bags of 32 cookies
- 4 bags of 16 cookies
- 8 bags of 8 cookies
- 16 bags of 4 cookies
- 32 bags of 2 cookies
- 64 bags of 1 cookie
