solve using elimination....
8x - 3y = -6
-8x + 7y = -18
( ___ , ___ )
Answer:
x= -3
y= -6
Step-by-step explanation:
8x - 3y= -6 .........equation 1
-8y + 7y= -18..........equation 2
Using elumination method
Multiply equation 1 by -8 and multiply equation 2 by 8
-64x + 24y = 48
-
64x + 56y =-144
-32y = 192
y = 192/-32
y= -6
Substitute -6 for y in equation 1
8x - 3(-6) = -6
8x + 18= -6
8x= -6 -18
8x=-24
x= -24/8
x= -3
Hence x = -3 and y = -6
5+7n>-37 and n +8 <4
Solve each compound iniquity and graph its solution.
Answer:
-6 < n < -4
Step-by-step explanation:
Solving the inequality 5 + 7n > -37 :
5 + 7n > -37
⇔ 7n > -37 - 5
⇔ 7n > -42
⇔ n > -42/7
⇔ n > -6
Solving the inequality n + 8 < 4 :
n + 8 < 4
⇔ n < 4 - 8
⇔ n < -4
Then , the solution to the compound inequality
5 + 7n > -37 and n + 8 < 4 is :
All real numbers n ,where -6 < n < -4
The solution in interval notation (-6 , -4)
a cab company charges $6 as an initial fee for a trip, in addition to the meter fee of $3 for each mile traveled. What would represent this situation?
Answer:
c = 0.6d + 1.2
Step-by-step explanation:
If the class started at 11:30 A.M. and ended at 12:25 P.M., how long did the class last?
Answer:
55 minutes
Step-by-step explanation:
Find the coordinates of point b on ac such that the ratio of AB to BC is 5:1
Step-by-step explanation:
To find coordinates, we need the equation of the line segment with restrictions. I think you meant to say “line segment” as lines go infinitely in 2 directions and could not be broken up into ratios. Let’s say your segment is 24 feet long. You could then label AB as 5x and BC as x since that is a ratio of 5:1 …………We’d then have an equation
5x + x = 24 … or 6x = 24…..or x = 4 which would make AB = 20 and BC = 4…but this would not give us coordinates of points.
a keyboard that costs 475 is on sale for 175. How much money will you save buying it on sale?
Answer:
$300
Step-by-step explanation:
First, you subtract 475 and 175.
Which equals 300. That means that you saved $300.
Answer:$300
Step-by-step explanation:
475 (base price) - 175 (sale price)
=300 (saved price)
Demetrius received his phone bill in the mail. The bill was for $99.00 and the sales tax was 4.5%. He ended up paying $94.54 for his bill.
True
or
False
Answer:
false
Step-by-step explanation:
i think the answer is false srry if i am wrong
help me look at the picture
Answer:
1. 3,485mm = 0.003485km
2. 94.22L = 9422cL
3. .003cm = 0.03mm
HEYYYYY PLEASE HELP thank you: )
Answer:
the first one
when adding a negative number its basically subtracting
Answer:
Top left :D
Step-by-step explanation:
Solve for the missing variable
3.5x=14
Question 10 of 10
Which of the following is most likely the next step
in the series?
:::
B.
O D.
i have 0 idea help
Answer:
A is next answer cos 12+8=20 and 20 dots in a
Plzzzzz help me!!! I am supposed to find the measure for the angle!
Answer:
the angle of this is 80 all havevtobdo is add all the sides of the angle
1. The Royals softball team played 125 games and won 60 of them. What percent of the games did they lose? A. 48% B. 52% C. 65% D. 75%
Answer:
52% or B.
Step-by-step explanation:
Can someone help me?
Answer: x = 34°
Step-by-step explanation:
180°-92°-54° = 34°
WILL GIVE BRAINLIEST TO CORRECT ANSWER
Answer: 80
Step-by-step explanation:
Multiple 8 x 10
What is the value of t in the equation 2t-8+4t-13=27
Answer:
t=8
Step-by-step explanation:
Kyle had $450 in his bank account on Monday. On Tuesday he wrote five checks for $24.50 each. On Wednesday he made three deposits of $45 each. How much money was in his account after the checks and deposits cleared?
pls help
Answer: $462.5
Step-by-step explanation:
1.) You are going to multiply 24.50 and 5
(24.50×5= 122.5)
2.) Then subtract your answer with the money that's in the account:
(450-122.5= 327.5)
3.) Now he added money to his account so you add but first you figure out the amount
(45×3= 135)
Now you can add the amount to the remaining balance
(327.5+135= 462.5)
helppppppppppppppppppppppppppppppppppppppppppppppppppppp
please help due today!!!!!
The answer will be 2.
If you add 2+2+2 it will equal 6 + the 2 on the scale will be 8 that makes it equal to the other scale
Help what is the range
WHICH ONE IS IT IM BEGING U GUYS PLZ HELP AND DONT IGNORE ME
Answer:
1.4x10^9
Step-by-step explanation:
1400000000
Select the correct answer.
Vector u has its initial point at (15, 22) and its terminal point at (5,-4). Vector v points in a direction opposite that of u, and its magnitude is twice
the magnitude of u. What is the component form of v?
OA. v=(-20, 36)
OB. v=(-20, 52)
OC. = (20,36)
OD. v= (20,52)
V=
Answer:
uhhh well im not good but im gonna try and i think b sorry if wrong
Casey traveled 4 3/5 miles. She then stopped for a break. After her break, she traveled another 1/2 mile and stopped to eat a snack. Then, Casey went an additional 1/4 mile. How many miles did Casey travel altogether
Answer:
5.4miles
Step-by-step explanation:
Step one:
given
Casey traveled 4 3/5 miles
She traveled another 1/2 mile
Then, an additional 1/4 mile
Required:
the total distance travelled
Step two;
the total distance is the summation of the individual distances covered
=4 3/5 + 1/2 + 1/4
= 23/5+1/2+1/4
lcm = 20
92+11+6/20
=109/20
=5.4miles
You are measuring temperature using a thermometer that gives degrees in Fahrenheit. You want to know what the temperature is in degrees Celsius. This formula converts temperatures from degrees Celsius to degrees Fahrenheit: F = 9/5C + 32. Rewrite this formula to convert Fahrenheit to Celsius. In your answer, use fractions instead of decimal numbers.
Answer:
F = 9/5C + 32
Step-by-step explanation:
F = 9/5C + 32
Since F means Fahrenheit and C means Celsius
Therefore the answer is already written
Answer: F = 9/5C + 32
Answer: C = 5/9 ( F - 32 )
Step-by-step explanation:
i dont know to do the 5 over 9 on the computer but thats the answer
Edmentum Answer
on a number spinner of 9 what is the probability of spinning a number greater than 5
PLEASE HELP FAST!!
find the value of x so that the function has the given value. n(x)= -1/4x+11; n(x)=10
Answer:
x = 4
Step-by-step explanation:
10 = -1/4 x + 11
10 - 11 = -1/4 x
-1 = - 1/4 x
x = 4
SOMEONE PLEASE HELP THIS IS TIMED IM NOT SURE WHAT TO DO!!!
Tony and Mia want to go to the Gwinnett Carnival for their first date. Each ride cost $5 and tickets cost $10 per person. They have $80 total to spend on tickets and rides.
Part A: Write an equation that models this situation.
Part B: Tony believes he and Mia can go on 12 rides each. Do you agree or disagree?
Part C: If Mia contributes an additional $20 to the total amount of money they could spend, how many more additional rides can Tony and Mia go on?
Answer:
80 total to spent evrytin is 20 percent
Step-by-step explanation:
The price of a pair of headphones is $49.99 before tax. Ron bought the headphones for a 50% discount. He then paid sales tax of 8% on the discounted price.
Part A: How much did Ron pay in sales tax? Show all work and steps in your solution.
Part B: What is the total amount that Ron paid for the headphones? Show all work and steps in your solution.
Answer:
1. Ron paid 4 dollars on sales tax and 2. The total Ron paid was 28.99
Step-by-step explanation:
Answer:
Answer to Part A: To solve this we must first find out how much of a discount is there. First we must divide 49.99 by 2 which equals about 24.99. After that we minis the discount with the original price, which equals 25.00. Then we divide 25.00 by 8 which equals 3.12. So then the sales tax must be 3.12 dollars.
Answer to Part B- First do all the math from Part A, then just add 3.12 to the price of 25.00. Which equals 28.12 so the answer must be 28.12 Dollars.
Step-by-step explanation:
Answer to Part A: To solve this we must first find out how much of a discount is there. First we must divide 49.99 by 2 which equals about 24.99. After that we minis the discount with the original price, which equals 25.00. Then we divide 25.00 by 8 which equals 3.12. So then the sales tax must be 3.12 dollars.
Answer to Part B- First do all the math from Part A, then just add 3.12 to the price of 25.00. Which equals 28.12 so the answer must be 28.12 Dollars.
plz help mark brainlest
Answer:
i belive the answer is c
Step-by-step explanation:
glad i could help if i did
Answer:
The answer would be C if I were to say anything
3. If Jeff is walking 2 miles per hour (mph), how far can he travel in 1 hour?
A. 2 miles
B. 3 miles
C. 4 miles
D. 5 miles