0
15 questions add 250 if they are correct and subtract 150 if incorrect the final score is 2150 how many were correct?
Wiki User
∙ 14y ago
250(x) - 150(15-x) = 2150
250x - 2250 + 150x
400x - 2250 = 2150
400x = 4400
x = 11
11 were correct
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Do estimate the difference means subtract?
To estimate the difference, you find the difference first. To find the difference, you subtract the numbers you are given. Then you estimate your final answer (the difference).
When calculating acceleration to find the change in velocity do you subtract the initial velocity from the final velocity?
Yes.
How do you subtract improper mixed fractions?
Make the denominators the same using equivalent fractionsAdd or subtract the numerators.Change the result to a mixed fraction if the numerator is larger thanthe denominator.Simplify the final result if possible.
How do you times in algebra?
You can't. For example if your equation is: 2x+7=12 then you will subtract 7 by itself, then subtract 7 from 12. You then get 2x=5. You will then divide 5 by 2 and you will get x=2.5 as your final answer.
True or false To calculate the acceleration of and automobile you must first subtract the final speed from the initial speed?
True
Does spelling have to be correct on final jeopardy?
yes ,each word must be spelled correct even if said incorrect
Dr Smith's chemistry midterm has 60 questions She scores the test as follows for each correct answer she gives 2 points for each incorrect answer she subtracts 23 of a point for unanswered?
To calculate Dr. Smith's score, you would first multiply the number of correct answers by 2 to get the total points for the correct answers. Then, multiply the number of incorrect answers by -23 to get the total points deducted for incorrect answers. Finally, add up the total points for correct answers and total points deducted for incorrect answers to get Dr. Smith's final score on the chemistry midterm.
What 3-3 digit numbers can you subtract by 1000 in order to get your final answer as 321?
You can subtract 679.
When calculating acceleration to find the change in velocity you subtract the what velocity from the final velocity?
When calculating acceleration to find the change in velocity, you subtract the initial velocity from the final velocity. The formula for acceleration is: acceleration = (final velocity - initial velocity) / time.
To find acceleration you subtract what?
To find acceleration, you subtract the initial velocity from the final velocity and then divide by the time taken to achieve the change in velocity. The formula for acceleration is (final velocity - initial velocity) / time.
How do you find the volume of a displaced object when the initial and final volumes are shown?
Subtract the initial from the final
How many questions in ccna1 final exam?
There are 50 questions in ccna1 final exam.
What would the consequences be if a sketch you completed was not dimensioned correctly?
Incorrect sketching could result an incorrect final product.
What does Il s'appelles mean in french?
"Il s'appelles" is incorrect in French. The correct phrase is "Il s'appelle," which means "He is called" or "His name is."
How many questions canbe wrongon a 40 question to get 70 percent in a reading test?
If there are 40 questions - each question is worth 2.5 % of your final mark. Therefore 28 correct answers will give you a 70% pass.
What is the answer of subtract the sum of -247 and 1075 from the sum of -26 and -10008?
The final answer is -10,862.
Do estimate the difference means subtract?
To estimate the difference, you find the difference first. To find the difference, you subtract the numbers you are given. Then you estimate your final answer (the difference).
