Evaluate 4a-bc if a=7 b=3 c= -2

Answers

Answer 1

Answer: Its 34 because 7x4=28, and 3 x -2 is -6 and a negative x - negative is positive so you would do 28+6 which is 34

Answer 2

Answer: You would plug in your answers and the equation would become 4(7)-(3*-2)=34. You should have known this if you are in high school.

Related Questions

Solve each quadratic equation. Show your work.14. (2x – 1)(x + 7) = 0
Multiply ($728.00) * (6.2%) and round to the nearest cent. (Include the correct units.)
Question 7X-9= -6What is X
How does a digit in the ten thousand place compare to a digit in thousands place?
if we have a geometric series with u1 = 2.1 and r= 1.06, what would the least value of n be such that Sn > 5543?

in a survey of teens, 21% said their friends like to read and talk about books. About how many teens out of 1,095 would say their friends read and talk about books?

Answers

Answer:

About 230 teens would say that their friends read and talk about books.

Step-by-step explanation:

From the survey, 21% of teens like to read and talk about books.

21% = $(21)/(100)$

Thus, from 1095 teens, 21% of them would say their friends read and talk about books.

21% of 1095 = $(21)/(100)$ × 1095

= $(22995)/(100)$

= 229.95

Therefore, about 230 teens from 1095 would say that their friends read and talk about books.

21÷100=0.21 0.21×1095=230 friends estimeted from 229.95

how many liters of a 20% alcohol solution should be mixed with a 50 liters of a 60% alcohol solution to obtain a 30% solution?

Answers

(0.20*x+50*0.60)(x+50) = 0.30 <=>0.20*x + 30 = 0.30*x + 15 <=> 30 - 15 = 0.30*x - 0.20*x <=> 15 = 0.10*x <=> x = 15*(100/10) <=> x = 150;

Hope you understand this :)

the sum of two numbers is 13 2 times the first number minus 3x and the second number is 1 if you let X stand for the first number and why for the second number what are the two numbers

Answers

If we let x be the first number and y be the second, we have (x + y) =13 and (2x - 3y) = 1. From the first equation, we have x = (13- y). Substituting this into the second one, we have 2(13 - y) - 3y = 1. Distributing the equation and re-arranging it, we now have (-5y) = (-26). Dividing both sides by -5, we have y = 5. Now x = (13 - y) = 8. Therefore, the two numbers are 5 and 8.

What are the exact solutions of x2 − 3x − 5 = 0?

Answers

$x^(2) - 3x - 5 = 0 \n \n \Delta = (-3)^(2) - 4 \cdot 1 \cdot (-5) = 9 + 20 = 29 \n \n √(\Delta ) = √(29) \n \n x_(1) = (3 - √(29) )/(2) \n \n x_(2) = (3+ √(29) )/(2) \n \n \boxed{x \in \left \lbrace (3 - √(29) )/(2) , (3 + √(29) )/(2) \right \rbrace }$

What is an exponential number?

Answers

It's a number with an exponent

24% of 1,321 is how much?

Answers

Percentage that needs to be determined = 24%
The quantity from which the percentage has to be determined = 1321
Then
24% of 1321 = (24/100) * 1321
= 31704/100
= 317.04
So from the above deduction we can easily say that 24% of the number 1321 is 317.04. I hope the procedure is not very complicated for you to understand. You can use this method for solving similar type of problems in future without requiring any help from anyone. Only be careful while calculating. Other than the calculation part, there is nothing tough about the problem.

Other Questions

If you separate all the clubs from a deck of cards and pick 3 of those 13 cards, what is the probability that the cards are jack, queen, and king in ascending or descending order?

Please help, test review. Need done today

Im timed i need the answer NOWFind the distance between point A(0,4) and point B (-2,-7) rounded to the nearest tenth.A.3.6B. 11.1C.11.2D.3.7

What is the product of 32/3 and 142/5