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
Leni [432]
3 years ago
13

Please someone help me .I need help. Focus on number 4

Mathematics
1 answer:
eimsori [14]3 years ago
7 0

Answer:

No

Step-by-step explanation:

To determine if the point (- 3, 5) is a solution to both equations.

Substitute the x and y values into the left side of both equations and if equal to the right sides then the point is a solution.

x - 3y = - 3 - 3(5) = - 3 - 15 = - 18 ← True

- 2x + y = - 2(- 3) + 5 =  6 + 5 = 11 ← False

Thus (- 3, 5) is not a solution to the system of equations.

You might be interested in
What equation is perpendicular to y=2x-3 and<br> passes through (-1, 2)?
Wittaler [7]

Answer:

\[y=-\frac{1}{2}x+\frac{5}{2}\]

Step-by-step explanation:

Equation of the given line: \[y=2x-3\]

Slope of the line = \[2\]

Slope of the perpendicular line = \[-\frac{1}{2}\]

So the equation of the perpendicular line:

\[y=-\frac{1}{2}x+c\]

This passes through the point (-1,2).Substituting in the equation:

\[2=-\frac{1}{2}*(-1)+c\]

=> \[c=2+\frac{1}{2}\]

=> \[c=\frac{5}{2}\]

So the equation of the line :

\[y=-\frac{1}{2}x+\frac{5}{2}\]

4 0
2 years ago
Mrs. Ham is planning a party for students who have met their goal of reading seven books during the most recent eight weeks of v
djyliett [7]

Answer:

8 pizzas and 32 drinks

Step-by-step explanation:

12 times 8 equals 96

0.50 times 32 equals 16

96 plus 16 equals 112

7 0
3 years ago
A flat screen tv at Best Buy costs $699 . The sales tax in Virginia is 5.3%. How much tax will you pay on the TV?
krok68 [10]

Answer:

736.05

Step-by-step explanation:699.00 x 5.3%=37.047

699.00 + 37.05 = 736.05

4 0
2 years ago
Read 2 more answers
Pls help me with this
Nady [450]

Answer:

Step-by-step explanation:

9. the set containing all objects or elements and of which all other sets are subsets.

10. complement --> the amount in only one of teh sets

intersection --> the amount in both sets

11. 14 or -14

13. 46 1/2

14. 2 31/120

15. 1100% profit

16. 1200 gm

17. cube root of 7?

18. 6000 per year

6 0
1 year ago
Who invited math?? Please answer!!!!!
maksim [4K]

Answer:

Ancient Greeks

Beginning in the 6th century BC with the Pythagoreans, with Greek mathematics the Ancient Greeks began a systematic study of mathematics as a subject in its own right. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • How I would I do number 3
    8·2 answers
  • The times for three swimmers are 101.85 seconds, 101.6 seconds, and 59.625 seconds. Which is the winning time?
    8·2 answers
  • The phone company NextFell has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of mon
    7·1 answer
  • The price of an item yesterday was
    15·2 answers
  • A total of 503 tickets were sold for the school play. They were either adult tickets or student tickets. There were 53 more stud
    5·1 answer
  • A locker door is 13 inches wide by 27 inches tall. A company will use a scale factor of 2.5 to change the dimensions
    10·1 answer
  • A rectangle made of square tiles measures 9 tiles long and 4 tiles wide. What is the length of a similar rectangle whose width i
    5·1 answer
  • 9
    8·1 answer
  • NO LINKS OR ASSESSMENT!! Part 2a: State the Domain and Range of each graph in BOTH inequality and interval notation​
    15·1 answer
  • What is the slope of the line graphed below?<br><br> A) -5/2<br> B) 5/2<br> C) -2/5<br> D) 2/5
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!