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
svp [43]
3 years ago
7

Solve the system of equations

Mathematics
1 answer:
Kazeer [188]3 years ago
8 0

Answer:

(3,4)

Step-by-step explanation:

x+y=7, where y=4, so therefore make x the subject and substitute y=4

x=7-y

x=7-4

x=3

therefore x=3, y=4.

You might be interested in
at a school number of boys:number of girls = 9:7 . There are 116 more boys than girls. Work out the total number at the school
Westkost [7]
612 Boys and 476 Girls
8 0
3 years ago
Kelly needs to order lunch for the 6 people at a business meeting. Her menu choices are chicken salad for acost of $5 per person
Lady bird [3.3K]
Hello There!! (: 
I'm Here to help!
If we say Kelly orders 1 chicken salad, then it means she ordered 5 egg salads. If she ordered x chicken salads, then she'll have to order the rest, which is <span>(6−x)</span> egg salads. For first equation, let's set y to be the meal's price. It consist of the price of all chicken salads ordered and the price of all egg salads ordered: <span>y=5x+4(6−x)</span> Again, x represents number of chicken salads ordered, and y represents the meal's price. A second equation would come to limit the price to the money Kelly has: <span>y≤28
</span> Notice there are more constraints to add on the values (x cannot be negative, no such thing negative number of salads or fractional number of salads) so just keep that in mind. Now, since we know the price based on the number of chicken salads, we can say for what number of salads it matches the second restriction: <span><span><span>5x+4(6−x)≤28</span><span>5x+24−4x≤28</span><span>x≤28−24</span><span>x≤4

Does this help you?
I Sure hope so have a goodnight ! (:


</span></span></span>
6 0
3 years ago
Please i need to get good grades
daser333 [38]

Answer:

47°

Step-by-step explanation:

angles x and 133 are supplementary, so they add up to 180°

subtract 133 from 180 to get 47

7 0
3 years ago
I neeeeedddddd helppppppp
Eddi Din [679]
The answer is 48 degrees because you add 42 and 90 and then subtract from 180 (total degrees of a triangle)
8 0
2 years ago
Amir pitches a baseball at an initial height of 6 feet, with a velocity of 73 feet per second. If the batter misses, about how l
irakobra [83]
4.64. hrbtbhtfhhffbghg
5 0
3 years ago
Read 2 more answers
Other questions:
  • Mr Tan is 53 years old and his granddaughter is 5 years old in how many years will he be 4 times as old as his granddaughter
    12·1 answer
  • HELP PLEASE! URGENT!
    10·1 answer
  • Please help me with this math problem, urgent please
    13·2 answers
  • 1 ft. = 12 in<br> Convert 4 feet to inches.<br> Convert 48 inches to feet.
    14·1 answer
  • Help!
    8·1 answer
  • Someone knows it, I take help
    13·1 answer
  • Please help by Giving out the brainiest
    12·1 answer
  • 9. You have a record of your age x (in years) and your height y (in inches) on
    14·2 answers
  • WILL GIVE BRAINLIEST
    8·2 answers
  • What is the value of n? n×n^2=343​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!