Answers
Answer:
Substitution is when you isolate a variable-
3) We can divide the first equation by 6 to get x+y=-1, then isolate to get y=-1-x. We plug this into the second equation to have 3x+(-1-x)=-13. We simplify and get 2x=-12 so x=-6. We plug this back into the first equation and get -6+y=-1 so y=5. So the answer as an ordered pair is (-6,5).
4) We can isolate the second equation to get x=2y+11. We substitute this into the first equation to have -7(2y+11)-2y=-13. We simplify and get -16y=64 so y=-4. We plug this back into the second equation and get x+8=11 so x=3. So the answer as an ordered pair is (3,-4).
Related Questions
Identify a chord that is not a diameter of the circle
Answers
Answer:
i think it is B
Step-by-step explanation:
NEED THE CORRECT ANSWER TO THIS ASAP!!!Sylvie needs $110 for a concert ticket. She already has $16 and she can earn the rest by working 10 hours at her job. If h represents her hourly earnings, select all the equations that can be solved to find Sylvie's hourly eamings.
a) 110 - 16 x 10h
b) 110 x 16h + 10
c) 16 x 110_n
d) 110 x 16 + 10h
e) 110 + 16 x 10h
Answers
Answer:
d
Step-by-step explanation:110-16 + 10h
What is this number in numeric form?
four and two hundred fifty-nine thousandths
Answers
Answer:
.4259
or 4.259
Step-by-step explanation:
I D K if the and is a point or just an and.
:) hope this helps
its scale factoring, please help thanks
Answers
Pentagon A'B'C'D' E' is the image of pentagon ABCDE under a dilation with a scale factor of
ID
소
C
What is the length of segment CD?
Answers
Answer:
4
Step-by-step explanation:
I took a quiz
After selling half his old games, Sam went and bought 8 new ones. He
now has 30 games. How many did he start with?
Answers
Answer: He started with 44
Step-by-step explanation: 44/2=22
22+8= 30
The product of 3 and
increased by 5
Answers
Answer AND expaination
The product of a number and 3 increased by 5 is 7 less than twice the number which equation can be used to find this number , n?
its -7
the product of a number and 3: 3n
increased by 5: + 5
7 less than: - 7
twice the number: 2n
That gives us the following:
3n + 5 = 2n - 7
You only asked for the equation, not to actually help you solve for n, for note. If you do, just subtract 2n from both sides, and then subtract 5 from both sides.
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Answer:
here i did it i think sorry if im wrong
Step-by-step explanation:
The product of a number and 3 increased by 5 is 7 less than twice the number
acute isosceles
obtuse isosceles
acute scalene
equiangular equilateral
Answers
Answer:
obtuse isosceles
Step-by-step explanation:
isosceles angles
Show instructions
Questions 1-5 of 5 | Page 1 of 1
Question 1 (1 point)
A cab company charges $2 per cab ride, plus an additional $2 per mile driven. If a cab ride is 7 miles long, how
much will it cost?
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Question 2 (1 point)
Rachel has already written 3 pages, and she expects to write 2 pages for every additional hour spent writing.
Write an equation that shows the relationship between the hours spent writing h and the total pages written p.
Answers
2+2x
2+2(7)
2+14
16 dollars
question 2
3+2h=p
David wants to donate $400 to a charity. He has already saved $125. He earns $9 each day at his after-school job. What is the least number of days that David must work to earn $400?
Answers
Answer:
About 31 days
Step-by-step explanation:
Since he already has $125, you can subtract that amount from how much he needs to earn. $400 - $125 = $275 that he must earn.
Divide the remaining amount by how much he earns a day to find the number of days he must work to reach his goal.
$275 ÷ $9 ≈ 30.5 (I got 30.5 repeating). I rounded up to 31 days.
in desperation it divided 4 x 6 -12 which operational will do you do first addition be subtraction multiplication division
what the answer
pls answer pls
Answers
Answer:24-12=12
Step-by-step explanation:
I need help on question 21. can u help me
Answers
Answer:
11.7
Step-by-step explanation:
A bus traveling from Memphis to Nashville has an average speed of 53 mph. How long will the trip take in hours if the distance between the two cities is 220 miles? ( HOW DID YOU GET YOUR ANSWER PLEASE SHOW YOUR WORK, DO NOT BOTHER ANSWERING IF YOU DO NOT SHOW WORK AND TELL ME HOW YOU GOT YOUR ANSWER!!)
A. 48.14
B. 22.36
C. 192
D. 4.15
E. .50
F. 0
G. .251
H. 1.25
I. -135
Answers
Answer:
the answer is 4.15.
Step-by-step explanation:
this is super easy my ffriend. think about it. 53 miles per hour. how many miles do u go in an hour... 53 MILES PER HOUR. so you now know you go 53 miles every hour. so what you then do is see that it is 220 miles to ur destination. in an hour you go 53 miles so you take 220 DIVIDED BY 53 and you get ur answer.
If a(x) = 3x + 1 and b(x)= VX-4, what is the domain of (bºa)(x)?
0 (-0,00)
0 (0.00)
O [1,00)
O [4,00)
Answers
The domain of [tex]b\,\circ \,a\,(x)[/tex] is [tex][1, +\infty)[/tex].
How to apply composition between functions
The composition of two functions consists in replacing the variable of the former function ([tex]b(x)[/tex]) by the latter function ([tex]a(x)[/tex]). If we know that [tex]b(x) = \sqrt{x-4}[/tex] and [tex]a(x) = 3\cdot x +1[/tex], then the composite function:
[tex]b\,\circ\,a \,(x) = \sqrt{(3\cdot x+1)-4}[/tex]
[tex]b\,\circ\,a\,(x) = \sqrt{3\cdot x-3}[/tex] (1)
Since the composite function is a square root function, then the domain fulfill the following inequation:
[tex]3\cdot x -3 \ge 0[/tex]
[tex]x \ge 1[/tex]
Hence, the domain of [tex]b\,\circ \,a\,(x)[/tex] is [tex][1, +\infty)[/tex]. [tex]\blacksquare[/tex]
To learn more on functions, we kindly invite to check this verified question: https://brainly.com/question/5245372
a package has one face, no edges, and one vertex. what is the object?
Answers
Answer:
a cone
Step-by-step explanation:
Answer:
cone
Step-by-step explanation:
HL criteria of congruence can be used only with?
Answers
QUESTION IN THE PHOTO
Answers
Answer:
ans is c
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Which is the answer?
Answers
Answer:
c
Step-by-step explanation:
How do i solve this |6x-3|=7
Answers
Answer:
x=5\3,-2\3
Step-by-step explanation:
Long division 5th grade I’m sorry if I’m asking a lot but I’m really new to this
Answers
Answer:
95.2
Step-by-step explanation:
Answer:
95.2
Step-by-step explanation:
476÷5=95.2
[tex]\sqrt[5]{476} }[/tex]
9x5=45
47-45=2
bring down the 6
26
5x5=25
26-25=1
Since the one is excess the answer is 95 and 1/5
but 1 divided by 5 equals .2
so the answer would b 95.2
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answers
Answer:
y = 3x + 74
Step-by-step explanation:
Lisa and Marie are both on the track team. During practice, Lisa ran 10 laps around
the track in 18 minutes. Marie ran 8 laps around the track in 14 minutes. Who ran at a
faster rate? If each runner continues at her same pace, how long would it take each
one to run 15 laps?
Answers
Answer:
Marie ran at a faster rate. It takes 27 minutes for Lisa to run 15 laps while it takes Marie 26.25 minutes to run 15 laps.
Step-by-step explanation:
18 ÷ 10 = 1.8 (Lisa's rate)
14 ÷ 8 = 1.75 (Marie's rate)
1.8 x 15 = 27 minutes (How long it takes for Lisa to run 15 laps)
1.75 x 15 = 26.25 (How long it takes for Marie to run 15 laps)
5.2 × _______ = 5.2 whats the answer
Answers
Answer:
1
Step-by-step explanation:
Please help I’m doing points
Answers
3 7/8
Hope this helps! :D
please help me thank you
Answers
Answer:
Step-by-step explanation:
Answer:
X=52 y=128
Step-by-step explanation:
8. Carter is saving up for a playstation. He has $120 right now, and can save $25 a month. If
the playstation costs $195, how many months must he save?
Answers
Answer:
Carter has to save for 3 months.
Step-by-step explanation:
120+25x=195
If you add 25 to 120, 3 times you get 195.
Therefore your answer is 3 months.
Mark brainliest pls and thank you.
Raul crosses Main Street when he walks home from school. The graph of the function d(t)=4|t-0.75) shows Raul's distance, in miles, from Main Street after thours. The domain of the function is 0 <= x <= 1.5 The graph shows his entire trip
Answers
Answer: does someone have it cause I’m stuck to
Step-by-step explanation:
Hey there Ms or Mr could you please help me out with this problem?
just a heads up this an assignment not a test it's about quadrilaterals/parallelograms.
Answers
Answer:
you forgot they/them pronouns are important!
Step-by-step explanation:
You have a bid of $250 per room for 180 guest rooms. You want to comp 12 rooms for the upcoming teacher convention. What is your average room rate across the paid and free rooms? Round to the nearest dollar.
a) $234
b) $244
c) $250
d) $254
Answers
Answer:
C
Step-by-step explanation:
Please help with this problem
Answers
Answer:
Step-by-step explanation:
you can think they come in pairs :
3 crates and 5 boxes = 8 (crates +boxes)
40 (crates+ boxes) are maximum to be hold so we can have 40/8 = 5 such pairs
the truck can hold
3 *5 = 15 crates and 5 *5 =25 boxes