Answer:
1.Solve for y in 2x+y=-3
y=-3-2x
2. Substitute y= -3 - 2x into 4x-2y=10
8x+6=10
3 Solve for x in 8x+6=10
x=1/2
4. Substitute x=1/2 into y = - 3 - 2x
y= -4
5. So you get...,
x=1/2
y=−4
Step-by-step explanation:
you're welcome :)
Help please fast thank you
Answer:
if ur going left to right it would be d
Step-by-step explanation:
PLEASE HELP WILL GIVE BRAINLIEST AND 20 POINTS!!!
Answer:
Step-by-step explanation:
The following equation can be rewritten as:
[tex]9cos^2(\theta)-8sin(\theta)-8=0[/tex]
Then using trig identities (that sin^2 + cos^2 = 1) can be rewritten again as:
[tex]1-8\sin(\theta)-9\sin ^2(\theta)=0[/tex]
Which we can solve using quadratic formula to get that
sinθ = -1 and sinθ = 1/9
Which we can solve to get that:
θ = 3pi/2 + 2pi*n
and
θ = pi - 0.11134 + 2pi*n
where n is any positive integer
If you found this answer helpful please consider leaving 5 stars, giving it a like, or if you asked this question, mark this answer as Brainliest. Thanks!
Kaleb bought a DVD recorder for $280. Now, it's on sale for $220. Find the percent of change in the price. Round to the nearest percent if necessary.
Answer: There was a change of 21.43% in the price.
Step-by-step explanation:
To find the percent of change, we can use a proportion:
part/whole = percent/100
We are solving for the percent, so we can put a variable, x, there.
part/whole = x/100
The whole, or original price, is $280. The part, or the price of it when it is on sale, is $220.
$220/$280 = x/100
Now, we can cross-multiply and divide.
220 times 100 = 22000
22,000 divided by 280 = 78.57%
So, x = 78.57%
Now, 78.57% is NOT the answer. This percentage is the amount Kaleb is paying. We have to suptract 78.57 from 100, which gives us 21.43%.
So, the answer is that there was a change of 21.43% in the price.
Divide $10,000 among Ben, Jill and Jane in the ration 3:1:2. What fraction of the money did Ben receive?
Select the best interpretation of the following equation.
11 - y = 3
Is 30x176 three times bigger then 10x176? Why? Please help
Answer: no it not bigger because 30 is bigger than 10
Step-by-step explanation:
what is (2x+1/3) equal to?
Answer:
1/3(6x+1)
Step-by-step explanation:
factor out 1/3 from the expression
Find the equation of a line that has the same slope as y=3-7x and the same y-intercept as y= -4x – 10.
Answer: y=3x -10
slope : 3 y-int : -10
Step-by-step explanation: I believe this is the answer
Michael opens a bag of Skittles and organizes them by color. He has 5 yellow, 6 green, 8
orange, 10 red, and 3 purple. Write the ratio representing the following:
Orange to Total
Answer:
I think 8:32 because there are 8 oranges and 32 in total
1:4
Step-by-step explanation:Known :He has 5 yellowHe has 6 greenHe has 8 orangeHe has 10 redHe has 3 purpleAsked :The Ratio of orange to totalSolution :Orange = 8 Skittles
Total = 5 + 6 + 8 + 10 + 3
Total = 32 Skittles
Ratio = 8 : 32
Ratio = 1 : 4
Conclusion :The ratio of orange to total is 1:4
what is the answer?????????? Please help!!!!!!
Answer:
y = 1/2x + 1 is the awnser to the problem
i need this answerd asap
Answer:
5
Step-by-step explanation:
5-6=1
Answer: It is 7.
Step-by-step explanation: 7-1=6
what is the length of the portion BC of the cloth?
Answer:
2nd option
Step-by-step explanation:
Using the sine ratio in the right triangle
sin32° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{BC}{AC }[/tex] = [tex]\frac{BC}{6}[/tex] ( multiply both sides by 6 )
6sin32° = BC
pls check this for me
and if it's not right pls tell me the answers
Answer:
2/11, 1 3/7, 5/21
the 2nd and 3rd answers are correct
Step-by-step explanation:
1) (6/11)×(1/3)
(6×1)/(11×3)
6/33
there is a 3 in common so divide by 3 for the numerator and denominator
6 ÷3
33 ÷3
2
11
2) 5/1 × 2/7
10/7
split the fraction to make mixed fraction
7/7=1
3/7 is left
=1 3/7
3) 2/7 × 5/6
(2×5)/(7×6)
10/42
there is a 2 in common so divide by to for the numerator and denominator
10 ÷2
42 ÷2
5/21
is xy = 15 linear or non linear function
Which point is not on line AB?
point D
point C
point A
point E
Answer:
points D, E
Step-by-step explanation:
The points on the line AB are points A, B, C
Points not on the line AB are points D, E
plz help :(
Given g(x) = f(x) + k. Identify a value of k that transforms f into g. Round your answer to the nearest integer.
K = ?
4 friends shared half of a pizza equally. How much of the whole pizza
did each friend eat
Answer:
you could solve this problem one of two ways-
1)
100/4 25/2 12.5
100, equals the entire pizza. 4, is the number of people. 25, is the amount they all get. They you divide by 2 since it is only a half pizza.
-or-
2)
100/2 50 50/4 12.5
100, equals the entire pizza. Divide that by 2 since it half a pizza. 100/2 equals 50. Then, since there is 4 friends you divide 50 by 4. Which equals 12.5.
In conclusion, the final answer is 12.5% of the pizza each.
Hope this helps!!
Step-by-step explanation:
Pythagorean theorem
How far from the wall should Zachary position the bottom of the ladder so that the top reaches the window ledge?
(PHOTO)
As the question suggests, we need to use Pythagorean Theorem!
[tex]a^{2}\ +\ b^{2}\ = c^{2}[/tex]
You are given the hypotenuse and one of the sides therefore you need to rearrange your formula like so:
[tex]a^{2}=c^{2}-b^{2}[/tex]
Substitute your values and solve.
[tex]a^{2}=17^{2}-15^{2}\\a^{2}=289-225 \\a^{2}=64\\\sqrt{a^{2}} =\sqrt{64} \\[/tex]
a = 8 meters
Which of the following sets
of numbers could be side
lengths in a triangle?
Explain your answers.
a) 28, 41, 14
b) 14, 3, 11
c) 15, 4, 32
d) 47, 29, 63
Classify your answers by side
lengths.
Answer:
b
Step-by-step explanation:
because the sum of two opposite interior angle is equal to the exterior angle
if one angle is 11 and the other one is 3
then the sum is 14
so the right answer is b
PLEASE HELP ASAP
PLEASE SHOW WORK
a. 2.40x<or equal to 9.60
b No, because it can be from 0-4
Parline lost 5 points and Tyrell lost 3 points. If
they both started with the same number of points,
who is in the lead and by how much?
Answer:
Tyrell is in the lead by 2 points.
Step-by-step explanation:
Example:
Imagine they both started at 10 points. If Parline lost 5 points (10 - 5) while Tyrell lost 3 points (10 - 3), then it is clear that Tyrell's points (7 remainings) are more than Parline's points (only 5 remainings). Hence, Tyrell is in the lead by 2 points.
Andrea works twice as many hours as Gwen works. Andrea works 12 more hours a week than Gwen.
she worked 3 hours a week
PLS ANSWER FAST!Amrita wants to raise more than $200 for a charity by walking dogs in her neighborhood. She charges $7 per walk.
What is an inequality that can be used to find the number of walks, w, that Amrita needs to complete?
Fill in the boxes to correctly complete the inequality.
2. Find the midpoint of the segment with endpoints of −11 i and −4 4i. I.
Answer:
-7.5 + 2.5i
Step-by-step explanation:
Alyssa is preparing her grocery list for the week. She wants to have a smoothie for breakfast every day and plans on a total of 6 cups of smoothies made from frozen fruit puree and yogurt. Knowing that fruit puree costs $2. 00 per cup and yogurt costs $3 per cup, she budgets $14. 00 for the ingredients. Which system could Alyssa’s roommate Marni use to find x, the number of cups of fruit puree, and y, the number of cups of yogurt, Alyssa plans to buy? x y = 6 2x 3y = 14 x y = 6 3x 2y = 14 6x 2y = 14 2x 3y = 6 x y = 14 2x 3y = 6.
Answer: A
Step-by-step explanation:
Answer:
A.
x + y = 6
2x + 3y = 14
Step-by-step explanation:
Use the table below to answer the questions:
a. is this a proportional relationship?
b. what is the constant of proportionality?
In jazmines class 2/5 students are girls what percentage of students in jazmines class are girls
Answer:
I believe its 40%
Step-by-step explanation:
I just did 100 divided by 5 = 20
20 + 20 = 40
Suiiiiiiiiiii help man hehehe
Answer:
Step-by-step explanation:
write the equation in slope-intercept form using point slope form.
(2,-5),m=-3
Answer:
y=-3x+1
Step-by-step explanation:
y-y1=m(x-x1)
y-(-5)=-3(x-2)
y+5=-3(x-2)
y=-3x+6-5
y=-3x+1
Which expression calculates the speed in meters per second of an object that travels a distance of 40 m every 10 s?
A. Divide
B. Multiply
C. Add
Answer:
A
Step-by-step explanation:
40/10 will give you your answer
40/10=4m/s
