Use substitution to solve the system of equations.
5x + y = -24
x + 3y = -2
• A X=-5. y = -1
• B. x = 5, y = 1
• C. x=-5, y = 1
• D. x = 5, y = -1
o
B
OA
ОО
D
Answers
the answer should be C.x=-5,y=1
Related Questions
Pi High School ordered 40 science books. The next week, the school ordered 30 algebra books. The bill for the first order was $360 greater than the bill for the second order. The two bills together totaled $3960. Find the price of an algebra book.
Answers
Answer:
Each algebra book costs $60.
Step-by-step explanation:
A=bill for algebra books; S=bill for science books=A+$360
S+A=$3960 Substitute for S
A+$360+A=$3960 Subtract $360 from each side.
2A=$3600 Divide each side by 2.
A=$1800 The order for 30 algebra books cost $1800.
Individual book=A/30
individual book=$1800/30=$60 ANSWER: Each algebra book cost $60.
Jason jumped 623 feet in a jumping contest. Yolanda jumped 434 feet. How much farther did Jason jump than Yolanda?
Answers
Answer:
jason jumped 189 feet more than Yolanda
Step-by-step explanation:
subtract Jason's jump and Yolanda's jump
623 - 434 = 189
What happens to the hare(rabbit) population (size) when the lynx population increases to a high number? AND explain why this happens. What happens to the size of the lynx population when the hare(rabbit) population increases to a high number? AND explain why this happens. PLEASE HELP ME
Answers
At first, there are more lynx than rabbits. This is shown by the fact the orange curve is above the blue curve. Because there are more predators than prey, some predators will unfortunately go without food and starve (this assumes that rabbits are the lynx only food source). This die-off explains why the orange curve goes down or decreases.
As the predators die off, the prey has time to flourish. The rabbit population grows or increases. Note the blue curve going uphill as the orange curve goes downhill. The blue curve hits a peak point and it then goes down. This is due to the lynx population rebounding. There's more food for the lynx and the lynx population will increase. The lynx then eat the rabbits to bring the hare population down.
In short, as one population increases, the other decreases, and vice versa. This back and forth cycles indefinitely. This keeps things in balance so one population doesn't overwhelm a location. Keep in mind that I'm only focused on these two populations and no other animal species. Also, I'm not considering any other factors such as habitat loss. So this is a very simplistic view of what's going on in nature. It's considered a predator-prey model to give biologists a rough sense of what's going on.
The chart shows that we do have a cyclic up and down pattern for each population. For the most part, the peak rabbit populations seem to coincide with the lynx population increasing. Also, when the rabbit population is at its lowest, the lynx population is on the decline. Furthermore, when the lynx population is at its peak, the hare population is on the decline. The lynx population being at its lowest seems to coincide with the hare population increasing.
The exceptions to this general rule seem to be at around 1885, 1895, and 1905. During these time frames, it appears that the two populations are in lockstep together. In other words, they seem rise and fall at the same time. What could explain this is something like habitat loss that I mentioned earlier. Habitat loss would explain why a population decreases. Also, people hunting either animal would explain the population decrease if the hunting is intense enough. If the population gets too low, then governments may step in to enact endangered species laws to protect the animals so that the population could rebound again.
Baby Gina's birth weight was 8 pounds. One week after being born, she is 2.5% lighter. What is Gina's current weight?
Answers
Answer:
6 pounds
Step-by-step explanation:
Given data
Initial weight=8 pounds
We are told that a week later the weight reduced by 25%
Let us find 25% of 8
=25/100*8
=0.25*8
=2 pounds
Hence the current weight is
=8-2
=6 pounds
During a pie eating contest, a person ate 12 pies in 60 minutes. How many pies did the person eat per minute? Group of answer choices
Answers
Answer:
5 per minute
Step-by-step explanation:
Answer:
The person ate 5 pies per minute
Step-by-step explanation:
If 12 pies were eaten in 60 minutes , you must divide the denominator (60) by 1 (the per minute). Whatever you do to the bottom, you must do to the top, so 60 / 12 is 5.
Hope this helped ;)
hello help please i’ll mark brainliest!!!
Answers
Answer:
A waxing gibbous moon is in the sky when darkness falls. It lights up the early evening. It appears more than half lighted, but less than full.
Step-by-step explanation
I need help with this question I'm in 9th grade
Answers
Answer:
Check pdf
Step-by-step explanation:
The temperature in Minneapolis was
-9°F. The next day, the temperature was warmer than -9'F
Write an inequality which is true only for temperatures t that are warmer than -9°F
HELP ME !!
Answers
Should be it
Answer:
x>-9F
Step-by-step explanation:
x is all possible temperatures greater than -9F
Two square floor tiles are made of the same material.One costs 180 naira and its edge is 30cm long.Find the cost of the other if its edge is 50cm long
Answers
Answer:
300 naira
Step-by-step explanation:
Steps to answer this question
we have to first determine the cost per cm the answer gotten is then multiplied by 50cmcost per cm = 180 /30 = 6 naira
cost of the other edge = 6 naira x 50 = 300 naira
Glenn and Helen are playing ping pong. For every 3 points that Glenn scores, Helen scores 6 points. If Glenn scores 9 points, how many points does Helen score? I NEED HELP A. 18
B. 162
C. 9
D. 54
Answers
Answer:
18
Step-by-step explanation:
Helen always scores twice as much as what Glenn scores so you multiply what Gleen scores to get Helen's score 9×2 =18
-4x3 and (x2 + 3x - 4)?
Answers
Step-by-step explanation:
Rewrite 4a + 7a using the Distributive Property.
a + a + a + a + a + a + a + a + a + a + a
4(a + a)
28a
a(4 + 7)
Please help, i am bad with algebra
Answers
Answer:
4+2= 6+ 4+7= 17+7=25+4=28
Do u want branlist answer this please
Answers
Answer:b
Step-by-step explanation:
a line always has 180 degrees so u just subtract 180-85=95 or what ever the angle is
AHHHHHHHHHHHHHHHHHHHHHHHHH had to make it 20 letters
A projectile is fired straight upward with an initial velocity of 400 feet per
second. The height of the projectile, h(t), if represented by the function
h(t) = -167 + 400t, where t is the time in seconds. What is the maximum
height of the object?
1. 25 feet
2. 12.5 feet
3. 2500 feet
4. 400 feet
Answers
Answer:
this could be wrong but another guy said one a website it was 2500 but i haven’t got my results back yet
In the Latin Club, there are six more girls than twice the number of boys.
If the Latin Club has 11 boys in it, how many members are girls?
A. 12 girls
B. 17 girls
C. 28 girls
D. 39 girls
Show your work please!
Answers
Y=number of boys
X=2Y+6
X=2(11)+6
=22+6
=28
help me pls i’ll give you brainliest
Answers
Answer:c.1/4^3
d.(1/4)(1/4)(1/4)
Step-by-step explanation:
Only those 2 opinions are equal to 4^-3. You can check this by plugging in the calculator those 2 answers and 4^-3 and getting approximately 0.0156
Answer:
Step-by-step explanation:
If A store had 100 toys 2398 x more how many is that
Answers
Answer:
Answer is 239,800.
How can you represent a relationship between two quantities?
Answers
It takes 5 days to repair 1,250 meters of road. At this rate, how many days will it take to repair 8 kilometers of road?
Answers
Answer :
no. of days used to repair 1250m of road = 5
no. of days used to repair 1m of road = 5/1250
no. of days used to repair 8000m of road (8*1000m ) = 5/1250*8000= 32 days
x days 8km=8000 meters
X=5•8000/1250
X=40000/1250
X=32 days
What is the distance between (4, -5) and (4, 4)?
Answers
The difference would be 9 squares
What is the area of the following circle?
Either enter an exact answer in terms of or use 3.14 for 1 and enter your answer as a decimal.
d = 8
Answers
Answer:
50.24
Step-by-step explanation:
A= pi r^2
A= 3.14 * 4^2
A= 3.14 * 16
A= 50.24
What is the volume of this composite solid?
A. 1188 cubic meters
B. 567 cubic meters
C. 864 cubic meters
D. 132 cubic meters
Answers
Answer: c
Step-by-step explanation:
i did the test
5a+2b=14 6a+2b=16
Solve in stimultaneous
Answers
Answer:
A=2 b=2
Step-by-step explanation:
5a+2b=14
6a+2b=16
6a+2b-(5a+2b)=16-14
6a+2b-5a-2b=2
a=2
b=2
What is the change in Greenland's ice from 2010
to 2011?
Is the change positive or negative?
Answers
Answer:
negatively, the more the ice melts the high the sea level rises.
Step-by-step explanation:
from 2010 to 2011 the average ice mass decreased by 463 gigatons
60 in
63 in
What is the length of the hypotenuse?
inches
Submit
Answers
Answer:
assuming 60 and 63 are the side lengths
87 in is the hypotenuse
Step-by-step explanation:
60^2 + 63^2 = x^2
What is the solution to the system of equations?
y = 2/3x +3
x= -2
Answers
Answer:
y=3 x=8
Step-by-step explanation:
I THINK BUT HOPE THIS MAYBE HELPS :)
URGENT !!!!!! Please answer correctly !!!!! Will be marking Brianliest !!!!!!!!!!!!!
Answers
This is because if the midpoint to one endpoint goes right 1 and up 5, then the other endpoint will be left 1 and down 5
URGENT !!!!!!!!! Please answer correctly !!!!! Will be marking Brianliest !!!!!!!!!!!!!!!!
Answers
Answer:
sure .
Step-by-step explanation:
I answer and then give me brainliest. sorry I am being rude
:/
Hi algebra is hard please help: The expression (8x+ 4) inches represents the perimeter of a rectangle whose width is (3x − 4) inches. Find the length of the rectangle if x = 2
Answers
Answer:
Length = 4 inches
Step-by-step explanation:
Perimeter of a rectangle = 2(length + width)
If x = 2
Perimeter = 8x - 4
= 8(2) - 4
= 16 - 4
= 12 inches
Width = 3x - 4
= 3(2) - 4
= 6 - 4
= 2 inches
Perimeter of a rectangle = 2(length + width)
12 = 2(length + 2)
12 = 2length + 4
12 - 4 = 2 length
8 = 2 length
Length = 8/2
Length = 4 inches
-1/3d + 4/5 = 3/4
solve for the variable.
Answers
Answer: x equals 12
Step-by-step explanation:
hope this helped
-1/3d=3/4-4/5
-1/3d=15/20-16/2
-1/3d= -1/20 multiply everything by -1
1/3d=1/20
d=1/20 over 1/3
d=3/20