1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Goryan [66]
3 years ago
14

From the first quiz to the second quiz, a score dropped eight points. The score on the second quiz was 39. What was the first qu

iz score?
Mathematics
2 answers:
frutty [35]3 years ago
5 0

Answer:47

Step-by-step explanation:

Because 39+8=47.

ArbitrLikvidat [17]3 years ago
5 0

\text{We're trying to find the score of the 1st quiz}\\\\\\text{We know that their second score was 39}\\\\\text{We also know that they dropped 8 points in the 2nd quiz}\\\\\text{To find the score of the 1st quiz, add 8 and 39}\\\\39+8=47\\\\\boxed{\text{1st test score was a 47}}

You might be interested in
What is the ratio of 20 praise and 2000 rupees<br>​
AnnZ [28]
1:100 because 20 divide by 20=1 and 2000 divide by 20 =100
8 0
3 years ago
Read 2 more answers
On any day, the probability of rain is 0.3. The occurrence of rain on any day is independent of the occurrence of rain on any ot
Sunny_sXe [5.5K]

Answer:

0.47178 = 47.178%

Step-by-step explanation:

Put simply, this question is asking the probability of having rain atleast twice in the next 5 days. The easiest way that comes to mind is reverse count - find the probability of it not happening. There are two cases for this:

Raining only once:

This has a .7^4 * 0.3 * 5 chance

Raining no times:

This has a .7^5 chance

Adding these together you get 0.52822

This is the inverse probability, so to find the actual probability, subtract it from 1.

P = 0.47178

8 0
3 years ago
Solve <br> A = P + PrT for A, given that P = $950,r = 3 1/2%, and t = 10 years.
hram777 [196]

Answer:

10 days the balance is $1,000, but then the balance drops to $950.

Step-by-step explanation:

For the first 10 days the balance is $1,000, but then the balance drops to $950.

3 0
3 years ago
In the game of Pick-A-Ball without replacement, there are 10 colored balls: 5 red, 2 white, and 3 blue. The balls have been plac
Nataly_w [17]

This question is incomplete, the complete question is;

In the game of Pick-A-Ball without replacement, there are 10 colored balls: 5 red, 2 white, and 3 blue. The balls have been placed into a small bucket, and the bucket has been shaken thoroughly. You will be asked to reach into the bucket without looking and select 2 balls. Because the bucket has been shaken thoroughly, you can assume that each individual ball is selected at random with equal likelihood of being chosen.

Now, close your eyes! Reach into the bucket, and pick a ball. (Click the red Pick-A-Ball! icon to simulate reaching into the bucket and drawing your ball.)

a) What is the probability of selecting the color of ball that you just selected? (Round your answer to four decimal places.)

Don't put your first ball back into the bucket. Now reach in ( again no peeking ), and pick your second ball. ( Click the red Pick-A-Ball icon to simulate reaching into the bucket and select your next ball.)

b) What is the probability of selecting the color of the ball you selected. ( Enter the answer in decimal format to 4 decimal places ).

Answer:

a) the probability of selecting the color of ball ( RED ) that you just selected is 0.5000

b) the probability of selecting the color of the ball ( BLUE ) I selected is 0.3333

Step-by-step explanation:

Given that;

We have a total of 10 colored balls  in a small bucket.

Number of Red balls = 5

Number of White balls = 2

Number of blue balls = 3.

Now, assuming I clicked on the red Pick-A-Ball icon to simulate reaching into the bucket and picking a ball.

Also, Assuming that the color of ball that appeared is Red.

Then the probability of selecting the color of ball ( RED ) that I just selected will be;

P( selected Color ) = Number of Red balls / Total number of balls in the bucket

P( selected Color )  = 5 / 10 = 0.5000

Therefore, the probability of selecting the color of ball ( RED ) that I selected is 0.5000

b)

It is said that the game is Pick-A-Ball without replacement.

So assuming I went on and clicked on the red Pick-A-Ball icon to simulate picking a second ball.

Also, Assuming that the color of ball that appeared was blue.

Then the probability of selecting the color of ball ( BLUE ) that I just selected will be;

P( selected Color ) = Number of Blue balls / Total number of balls in the bucket

Now, since I picked the first ball without replacement, i.e I did not return it back to the bucket, The total number of balls left in the bucket now is 9.

so; P( selected Color ) = 3 / 9 = 0.3333

Therefore, the probability of selecting the color of the ball ( BLUE ) I selected is 0.3333

3 0
3 years ago
Simplify the expression. (2q5)4 2q625 16q9 16q20 2q20
Katen [24]

Answer:

2^4= 16

(q^5)^4= q^20

16q^20. answer is c

3 0
3 years ago
Other questions:
  • Given four functions, place them in order of their y-intercept, from highest to lowest.
    9·2 answers
  • Triangle DEF has sides with lengths of 6, 11, and 13 units. Determine whether this triangle is a right triangle. Show all work n
    15·1 answer
  • 68 POINTS!! AND BRAINLIEST PLEASE HELP!!
    9·1 answer
  • PLEASE HELP! i have a couple minutes left
    14·2 answers
  • 2uk=2x+2y/x solve for x
    14·1 answer
  • Solve each equation.<br> X – 10 = 4<br> Math
    12·2 answers
  • 15. Cedric lives at one end of Main Street, and Landon lives at the other end of the street. Main Street is 6.02 Kilometers long
    7·1 answer
  • so i have this question that says I was at a grocery store and my total is 35.25 but I get to the register and find out it is 25
    6·1 answer
  • -4a = -2n + 2p, for a
    7·1 answer
  • Bailey makes a conjecture that the product of two odd integers is always an odd integer. Which choice is the best proof of her c
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!