Answer:
(2,2)
Step-by-step explanation:
2x+3y=10
x−2y=−2
In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.
2x+3y=10,x−2y=−2
To make 2x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 2.
2x+3y=10,2x+2(−2)y=2(−2)
Simplify.
2x+3y=10,2x−4y=−4
Subtract 2x−4y=−4 from 2x+3y=10 by subtracting like terms on each side of the equal sign.
2x−2x+3y+4y=10+4
Add 2x to −2x. Terms 2x and −2x cancel out, leaving an equation with only one variable that can be solved.
3y+4y=10+4
Add 3y to 4y.
7y=10+4
Add 10 to 4.
7y=14
Divide both sides by 7.
y=2
Substitute 2 for y in x−2y=−2. Because the resulting equation contains only one variable, you can solve for x directly.
x−2×2=−2
Multiply −2 times 2.
x−4=−2
Add 4 to both sides of the equation.
x=2
The system is now solved.
x=2,y=2
Correct choice is D) 2,2
I need this done right now and can you help me with other question. question in picture
Answer:
1 4/5
Step-by-step explanation:
x + 4 / 10 - x and it has given you that x = 5. Basically plug 5 in the x place and solve.
x + 4 / 10 - x
5 + 4 / 10 - 5
9 / 5
1 4/5 (Option D)
Hope this helps, thank you :) !!
Find the value of x so that the ratios are equivalent 9:x and 54:8
i cant seem to get it i tried 48 but it said it was wrong
Answer:
The answer is 48
Step-by-step explanation:
What is the slope of the line represented by this equation?
-3x + 8y = 12
Answer:
The slope of the line is: y = 1/6x + 2/3
Step-by-step explanation:
HOPE THIS HELPS! PLEASE GIVE BRAINLIEST!
Answer:
-3/8
Step-by-step explanation:
I got the answer right :)
I need serious help
Answer:
a. 3
b. 12
c. 4
Step-by-step explanation:
the equation is y= -3x+ 12, so the slope says you will lose 3 gallons of gas every hour
Set A contains 35 elements and set B contains 22 elements. If there are 40 elements in (A ∪ B) then how many elements are in (A ∩ B)?
Answer:
17
Step-by-step explanation:
The computation of the number of elements are in (A ∩ B) is shown below;
Given that
Set A contains 35 elements
And, set B contains 22 elements
Now if there are 40 elements in (A ∪ B)
So, the number of elements are in (A ∩ B) is
= 35 + 22 - 40
= 17
Colleen earns $5 for each hour of yard work. Write an equation that shows the relationship between the time spent x and the amount earned y.
Write your answer as an equation with y first, followed by an equals sign
Answer:
Easy
Step-by-step explanation:
Y=5x
I hope this helps
An event that is made up of two or more outcomes is called_______
Answer:
Compound Events
Step-by-step explanation:
Segment AB and segment CD intersect at point E. Segment AC and segment DB are parallel. If m∠A=41m∠A=41o and m∠D=56m∠D=56o, find the m∠AECm∠AEC.
Answer:
m∠AEC = 83°
Step-by-step explanation:
∠C and ∠D are alternate angles and are congruent because segment AC is parallel to DB
Therefore, m∠C = 56°
Sum of measures of angles of a triangle is 180.
So, m∠A + m∠C + m∠AEC = 180
41 + 56 + m∠AEC = 180
m∠AEC + 97 = 180
m∠AEC = 83°
Give an example of two other body systems that work together, and explain how they support each other
Answer:
Two systems that work very closely together are our cardiovascular and respiratory systems. The cardiovascular system includes your heart and blood vessels, which function to remove deoxygenated blood from and return oxygenated blood throughout your body. ... The heart then sends the oxygenated blood out to the body.
Step-by-step explanation:
Answer:
Two systems that work very closely together are our cardiovascular and respiratory systems. The cardiovascular system includes your heart and blood vessels, which function to remove deoxygenated blood from and return oxygenated blood throughout your body. ... The heart then sends the oxygenated blood out to the body.
Step-by-step explanation:
What is the sum of 7 3/16+3 3/4
Answer:
10.9375
Step-by-step explanation:
Answer:
10.9375
Step-by-step explanation:
2.5 more than quotient of a and 4 is b
answer:
a/4 + 2.5 = b
step-by-step explanation:
2.5 more than would mean it is being addedquotient means they are being divided"is" means it is after the equal sign PLEASE HELP
If 45 girls participated in basketball, then how many students
are in the girls athletics program?
Answer:
150
Step-by-step explanation:
Let there are 'x' girls. According to the given chart, 30% of the total girls participitated in basketball. As well as, we are provided with the statement '45 girls participated in basketball'
=> 30% of x = 45
=> 30/100 × x = 45
=> x = 45 x 100/30
=> x = 150
A church is packing Thanksgiving baskets. Each basket weighs 30 pounds. Here are two situations. For each situation, write an equation to represent the situation. If you get stuck, consider drawing a diagram. Each basket contains 3 identical bags of stuffing and a 6-pound bag of rice. Each basket contains 3 boxes. Each box contains a 6-pound bag of rice and a bag of stuffing. The bags of stuffing are all identical.
Answer:
3x + 6 = 30
Step-by-step explanation:
Solve the whole problem i give brainliest please help me.
Answer:
The inequality will be $75x + $25 ≤ $340
and the amount of days that she can afford the vehicle is 4.2
Step-by-step explanation:
if you subtract 25 from both sides, you'll get
75x ≤ 315
and when you divide both sides by 75, you'll get 4.2, or 4 days
Pls help me ASAP and ill give brainliest
Answer:
The answer is A
find the slope of the line that passes through 10, -8 1,12
Answer:
im really bad at math but here
Step-by-step explanation:
hi my
PLEASE HELP!!! Find the values of x and y for which the lines are parallel.
Answer:
x = 68
y = 72
Step-by-step explanation:
if the lines are parallel, then x-3 = 65
x = 68
(68 - 3) + 46 + y - 3 = 180
y = 72
plsss help i’ll give brainly...but pls give a correct answer
Answer:
3
Step-by-step explanation:
Terms are separated by symbols for operations (like plus, minus, multiply, divide.)
So your terms would be
8y
+z
-6
PLEASEEE HELPPP :((((
Answer:
1. 15
2. -30
3. -67
4. 28
Your welcome :)
Step-by-step explanation:
Answer:
15 degrees above zero = 15
30 degrees below zero = -30
67 degrees below zero = -67
28 degrees above zero = 28
Step-by-step explanation:
HOPE THIS HELPS!
Select the polynomials that are a difference of squares. Thank you so much for helping me!
y^4−2
25m^2n^4−1
p^8−q^4
16x^2−24
Answer:
a
Step-by-step explanation:
Select the polynomials that are a difference of squares. Thank you so much for helping me!
Please help what is 15 2/3
Answer:
its
47/3 i can show u more steps how did i do it
Answer:
47/3
Step-by-step explanation:
Decimal form = 15.667
Find this by multiplying 3 by 15, then adding it by 2. That is now your numerator.
Five years ago, Charlie was twice older than Priya. What are their ages now if in 3 years the um of their ages will be 76?
Answer:
Charlie is 45 and Priya is 25
Step-by-step explanation:
Answer:
present age of charlie is 45 years
present age of priya is 25 years
Step-by-step explanation:
Let start from five years ago
Let at that age of Priya was x years
given that
Charlie was twice older than Priya
age of Charlie = 2x
_____________________________________________
present age of charlie = age 5 years ago + 5 years = 2x + 5
present age of priya = age of priya 5 years ago + 5 years x + 5 = x + 5
_________________________________________________
age of charlie 3 years from now = present age of charlie + 3 years
age of charlie 3 years from now =2x + 5 + 3 = 2x + 8
age of priya 3 years from now = present age of priya + 3 years
age of priya 3 years from now =x + 5 + 3 = x + 8
Given that
in 3 years the sum of their ages will be 76
thus
sum of their ages in 3 years from now = x + 8 + 2x + 8 = 76
=> 3x + 16 = 76
=> 3x = 76-16 = 60
=> x = 60/3 = 20
Thus,
present age of charlie = 2x + 5 = 2*20 + 5 = 45 years
present age of priya = x + 5 = 20 + 5 = 25 years
What type of graph would have the title, "Favorite TV Show"?
bar graph
line graph
line plot
stem-and-leaf plot
Answer:
line graph
Step-by-step explanation:
line graph
Answer:
bar graph
Step-by-step explanation:
thats what i'm guessing because a bar graphs compares categories
What number would you add to each side of the inequality to solve:
13 < 4n - 14.4 ?
HELP I WILL MARK BRAINLIST
Answer:
D
Step-by-step explanation:
The zeros are the x-intercepts.
The parabola intercepts the graph at (0,0) and (4,0)
Answer:
D
Step-by-step explanation:
its the x intercepts
6. What is the center and the radius ( x + 1)^2 + (y - 5)^2 = 2^2
Center (-1,-5) radius= 2
Center (1,-5) radius= 2
Center (-1, 5) radius= 4
Center (-1, 5) radius= 2
Answer:
The equation for a circle is ( x - h )^2 + ( y - k )^2 = r^2, where h, k, is the center and r is the radius.
So, in this case: the center is (-1, 5) and the radius is 2.
Let me know if this helps!
In ΔRST, the measure of ∠T=90°, ST = 3.1 feet, and TR = 7 feet. Find the measure of ∠S to the nearest tenth of a degree.
Answer:
66.1
Step-by-step explanation:
Answer:
S=66.1135≈66.1 ∘
STEP BY STEP : Deltamath
We’re getting married bro
Answer:
It's not that hard so lets get a divorce bro
Step-by-step explanation:
need this asap please
Answer: I drew on the picture, don’t worry it’s not a scam
Step-by-step explanation:
HELP ME PLS WILL MARK BRAINLISTT!!!!
Answer:
4,4
Step-by-step explanation:
Answer:
(5,3)
Step-by-step explanation:
visualize it on a graph