Please help me I dont under stand these. I need help like right now.How many solutions are there to the following system of equations?
3x – 9y = 0
–x + 3y = –3
A. infinitely many
B.1
C.2
D.0
----------
What is the solution to the system of equations?
2x + y= -3
x - 2y= -4
(___,___)
-------------
In a recent golf match, Tiger’s score was 4 less than Phil’s score. Their combined scores totaled 140. Let p represent Phil's score and t represent Tiger's score.
Which pair of equations can be used to determine their scores?
A. p – t = 140
p + t = 4
B. p + 140 = t
p = 4
C. p + t = 140
p – t = 4
D. p + t = 140
p + t = 4
(i think this one is C)
-------
The system of equations is coincident.
What are the missing values?
3x + y= 7
9x + __ y= __
-------
Allison and her husband Noah both get in their cars and begin to drive at the same time. Allison starts 360 mi from their home and drives directly home at a constant rate of 50 mph. Noah starts at their home and drives away from the home at a constant rate of 40 mph. The system that models this situation is given, where d represents the distance from home, and t represents time, in hours. The solution to the system is (4, 160).
What is the correct interpretation of the solution to this system?
d = 360 - 50t
d =40t
A. Noah will be 160 mi from home and Allison will be 4 mi from home.
B. Allison and Noah will both be 160 mi from home after 4 h.
C. Noah will be 4 mi from home and Allison will be 160 mi from home.
D. Allison and Noah will both be 4 mi from home when they drive for 160 min.
--------
please help me I dont understand these.
Answers
Related Questions
A radio station uses 1/6 of it's time for the news. In a 24 hour day, how many are used for music and entertainment? Wouldn't it be 20 hours for music and entertainment?Wouldn't it be 20 hours? Since they used 4 hours for news, so 24 - 4 = 20 for music and entertainment? Someone else is telling me it's 4 hours but I'm confused on their reasoning.
What is 2/3 in a percent
What are the two formats for preparing the business income statement?
-7v - 5= -7 +2(-3v-3)
GIVE U 1000 POINTS
Answers
remember that 1/1=1 so 7/7=1
find out how many 7/7 are in 13/7
13/7-7/7=6/7 (that's one)
so 13/7=7/7+6/7=1+6/7=1 and 6/7
therefor the missing number is 6
Answer:
so simplify and find 'ones'
remember that 1/1=1 so 7/7=1
find out how many 7/7 are in 13/7
13/7-7/7=6/7 (that's one)
so 13/7=7/7+6/7=1+6/7=1 and 6/7
therefor the missing number is 6
Step-by-step explanation:
Answers
So I know that the length must equal W - 6, and that the area is 169. But, I only know how to find the width by dividing the area by the length (W = A/L). But I do not know the length. So I am kinda sorta really stuck. You do not need to solve this problem. I just need to know the equation to solve this problem. THANK YOU SO MUCH!!
Answers
A = L • W
We know that the length is 6 foot shorter than the width, so it would be:
A = (W – 6) • W
Your equation would be:
169 = (W – 6) • W
Answers
if we write the ratio 15 cookies to 40 cookies we will get the following ratio
15:40
to write in simplest form we have to find the highest common factor for both 15 and 40
the factors for both 15 and 40 are as follows
15 - 1,3,5,15
40 - 1,2,4,5,8,10,20,40
the highest common factor is 5
so we have to divide both ny 5 to get the simplest form
ratio in the simplest form is 3:8
Answers
How many factors make up this product ?