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
QveST [7]
3 years ago
13

8) 7x + 2 y = 24 8x + 2 y = 30

Mathematics
1 answer:
otez555 [7]3 years ago
7 0

Answer:x=6, y=-9

Step-by-step explanation:

7x+2y=24.....(1)

8x+2y=30.....(2)

(2) minus (1) we have

8x-7x+2y-2y=30-24

X=6

Substitute x=6 in (1), we have

7x6+2y=24

42+2y=24

2y=24-42

2y=-18

Y= - 18/2

Y=-9

You might be interested in
Please help me someone fine the equation!!
deff fn [24]

Answer:

y=\frac{3}{5}x\ +4.4

Step-by-step explanation:

Rise over run which would be 6/10 simplify that and you would get 3/5

Then you are looking for the intercept of y which would be 4.4.

5 0
3 years ago
PLEASE HELP IN MATH MADDD POINTS
lions [1.4K]
Hello, scatterplots are made of bivariate data. <span>With bivariate data, we have </span>two<span> sets of related data we want to </span><span>compare.</span>

So with bivariate data, we are interested in comparing the two sets of data and finding any relationships.

Hope this helps! :-)
3 0
3 years ago
In the search to determine if car 1 is slower to accelerate than car 2, the mean time it takes to accelerate to 30 miles per hou
kupik [55]

Answer:

Step-by-step explanation:

The happiest used in a test in statistics are the null and the alternative hypothesis. The null hypothesis is usually the default statement while the alternative hypothesis is thevopposite of the null hypothesis.

In this case study, the null hypothesis is u1 = u2: the average mean time it takes to accelerate to 30 miles per hour for car 1 is the same as that for car 2.

The alternative hypothesis is u1 > u2: the mean time it takes to accelerate to 30 miles per hour is greater than that for car 2 thus car 1 is slower to accelerate as it takes more time.

7 0
3 years ago
The lengths of 3 pieces of rope in the ratio 3:5:7. if the longest piece of rope is 56 inches long, how long is the shortest pie
Stolb23 [73]
Ratio being 3:5:7
longest being 56 so 
7x=56
x=8
multiply the other lengths by 8
3*8=24
5*8=40
making the final 
24:40:56
3 0
3 years ago
The definition of a circle uses the undefined term? ..
Naddika [18.5K]

Answer:

Plane

Step-by-step explanation:

or C

6 0
4 years ago
Other questions:
  • Write a word phrase for each algebraic expression
    6·1 answer
  • Solve and type in 'ab'
    5·2 answers
  • Micah is twice as old as Richard. Richard is four times as old as Ken. Ken is six years old. How old is Micah?
    10·2 answers
  • Please help &amp; explain! 45 points :)
    13·1 answer
  • The slant height of a cone is 8.45cm
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=3%20%2B%20%284%20%2B%205%29%20%3D%20%283%20%2B%204%29%20%2B%20m" id="TexFormula1" title="3 + (
    7·1 answer
  • Algebraic Woru
    5·1 answer
  • Carol rolled a dice 150 times she rolled a six 29 times
    15·1 answer
  • Name the marked angle in 2 different ways.
    12·2 answers
  • Plumber 1 charges $50 per hour plus a flat fee of $20.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!