Answer:
answer is -8
Step-by-step explanation:
the question is in which value of x this equation become -61.2
7.4x-2=-61.2 by addinng both side 2
7.4x=-61.2+2
7.4x=-59.2 ,to get the value of x divide both side by 7.4.
then x =-59.2÷7.4
x= -8
Answer: Your answer is going to be D. (10, -1)
Step-by-step explanation:
Starting off the equation you want to get rid of either x or y ( I did x first)
Take x+3y=7 and multiply the entire equation by -2 -- -2(x+3y=7)
You get -2x-6y=-14 and then add the two equations together
-2x-6y=-14
2x-4y=24 -- You get -10y = 10
y = -1
You can take the -1 and plug it back into either equation.. ( I did x+3y=7)
x+3(-1)=7 -- x-3=7 -- Add the 3 to get the 10 ( x = 10 )
So you have x = 10 & y = -1
(10,-1)
Answer:
$2000
Step-by-step explanation:
Simple Interest = $70
Rate = 3.5%
Time = 1
Principal = ?
Simple Interest = (Principal × Rate × Time)/100
Principal = (Simple Interest × 100)/(Rate × Time)
Principal = (70 × 100)/(3.5 × 1)
Principal = 7000/3.5
Principal = 14000/7
Principal = 2000
The ordered pair that describes the origin is (0, 0).
That's because x=0 and y=0 at the origin.
Answer: 19.9248588452
Step-by-step explanation: