1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AnnyKZ [126]
3 years ago
13

(Will give medal!!!) Which shows solutions to x + 2y = 8 if x and y must be whole numbers.. . . . A.. {(8, 0), (6, 1), (4, 2)}.

. B.. {(2, 4), (1, 6), (0, 8)}. . C.. {(0, 8), (1, 7), (2, 4)}. . D.. {(0, 8), (1, 5), (2, 4)}
Mathematics
2 answers:
quester [9]3 years ago
8 0
I don't think you can give medals on this site, but ok

a way to simplify it is to solve for y
x+2y=8
minus x both sides
2y=8-x
divide both sides by 2
y=4-x/2

(x,y)
just sub points in (sub x values for x and see if you get the coresponding y value)
example
point (8,0)
x=8 and the resulting y should eual 0
y=4-x/2
y=4-8/2
y=4-4
y=0
yes


A. (8,0) works, (6,1) works, (4,2) works
B. (2,4) doesn't work, so this option is wrong
C. (0,8) doesn't work, so this option is wrong
D. (0,8) still , doesn't work, so this option is wrong

answer is A
Irina18 [472]3 years ago
7 0
The best way in solving this kind of question is to use the Substitution or Assignment method in every variable in the equations and the best answer this question or the right coordinates are in letter A. (8,0)(6,1)(4,2) i hope i answered your question and please ask if you have any clarifications 
You might be interested in
Do these look right?
bezimeni [28]

Answer:

yes it look right like the one you have to do 2x+5=39

5 0
2 years ago
Tad and his buddies drove to the orange bowl to see their favorite football team win the national championship because of heavy
GenaCL600 [577]

Answer:

7.2

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
A parking lot charges $1.50 for the first hour of of parking and 55 cents for each additional half hour.how much would it cost t
Debora [2.8K]
 I think the answer is $4.25
3 0
3 years ago
Read 2 more answers
A manufacturer of running shoes knows that the average lifetime for a particular model of shoes is 15 months. Someone in the res
Alexus [3.1K]

Answer:

Step-by-step explanation:

Hello!

So you have a new type of shoe that lasts presumably longer than the ones that are on the market. So your study variable is:

X: "Lifetime of one shoe pair of the new model"

Applying CLT:

X[bar]≈N(μ;σ²/n)

Known values:

n= 30 shoe pairs

x[bar]: 17 months

S= 5.5 months

Since you have to prove whether the new shoes last more or less than the old ones your statistical hypothesis are:

H₀:μ=15

H₁:μ≠15

The significance level for the test is given: α: 0.05

Your critical region will be two-tailed:

Z_{\alpha /2} = Z_{0.025}= -1.96

Z_{1-\alpha /2} = Z_{0.975}= 1.96

So you'll reject the null Hypothesis if your calculated value is ≤-1.96 or if it is ≥1.96

Now you calculate your observed Z-value

Z=<u>x[bar]-μ</u> ⇒ Z=<u>    17-15     </u> = 1.99

     σ/√n              5.5/√30

Since this value is greater than the right critical value, i.e. Zobs(1.99)>1.96 you reject the null Hypothesis. So the average durability of the new shoe model is different than 15 months.

I hope you have a SUPER day!

5 0
3 years ago
A real estate agent sold Amar's home so he could relocate for a job. The company hiring Amar paid the real estate agent $14,000,
sasho [114]
The house is 91000 dollars.    14000 x 6.5
 F U jackmac





3 0
3 years ago
Other questions:
  • On the set of axes, solve the following system of equations graphically for all values of
    9·1 answer
  • I need help with this math
    15·2 answers
  • 1(3/11-7d/17) using distributive property
    12·1 answer
  • Formulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x- an
    9·1 answer
  • A bicycle wheel has a diameter of 26 inches. About how many rotations will it take for the wheel to travel one mile?
    6·1 answer
  • 8. Carter is saving up for a playstation. He has $120 right now, and can save $25 a month. If
    14·1 answer
  • write a equation in slope-intercept form for the line that is parallel to y=2x-8 and passes through the point(1,5).
    5·1 answer
  • X^2-9x-10 by x+1<br> Divide
    9·1 answer
  • Combine like terms: c + c + c <br> what do you get?<br> A- 3c<br> B- c3
    15·2 answers
  • The linear system is graphed. Is it an independent or dependent system?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!