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
Genrish500 [490]
3 years ago
9

Solve the system of equations. -5x+2y=9. y=7x

Mathematics
1 answer:
il63 [147K]3 years ago
7 0

- 5x + 2y = 9 \\ y = 7x \\  \\  - 5x + 2 \times 7x = 9 \\  - 5x + 14x = 9 \\ 9x = 9 \\ x = 1 \\  \\ y = 7 \times 1 = 7 \\

Answer: (1; 7)

You might be interested in
In the diagram below, P and Q are points on a circle with centre O.
Gnoma [55]

Answer:

<h2>∠PQT = 72°</h2>

Step-by-step explanation:

According to the diagram shown, ∠OPQ = ∠OQP = 18°. If PQT is a tangent to the circle, it can be inferred that line OQ is perpendicular to line QT. Ths shows that ∠OQT = 90°.

Also from the diagram, ∠OQP + ∠PQT = ∠OQT;

∠PQT  = ∠OQT -  ∠OQP

Given ∠OQP = 18° and ∠OQT = 90°

∠PQT = 90°-18°

∠PQT = 72°

8 0
3 years ago
What the unit rate for this? “9 inches of snow in 3 hous”
anastassius [24]

Answer:

3 inches per hour

Step-by-step explanation:

divide the number on the y axis (i'm assuming it's inches of snow) by the number on the x axis (i'm assuming its hours)

by doing this you will get 3 inches per hour

4 0
3 years ago
The Side-Angle-Side Similarity Postulate states “If the measures of 2 sides of a triangle are proportional to the measures of 2
Alenkinab [10]
True, hope this helps
5 0
3 years ago
Read 2 more answers
HELP REALLY NEED THIS
Vlad [161]
(1-z) can combine with other coupons
5 0
3 years ago
What is the equation of the line?
Natali5045456 [20]

x = 72

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of x?<br> 45°<br> m<br> (2x-5)<br> n
    6·1 answer
  • Anoki bought 360 millimeters of fabric. How many centimeters of fabric does Anoki have?
    11·1 answer
  • Estimate the value of √52. Please explain how you use perfect squares to come up with your answer.
    11·1 answer
  • In parallelogram ABCD , Angle A = 3x and angle B = x + 40. Find the value of x.
    9·1 answer
  • Simplify sec ( t ) cos ( t ) to a single trig function.
    6·1 answer
  • How many kilograms are there in 37 pounds?
    6·2 answers
  • How many solutions does this equation have? 7a + 5 (a+3) = 8a + 4 (a+2)
    9·1 answer
  • Hi I need help please.
    10·1 answer
  • GIVING 100 POINTS! just answer these 5 and ignore my answers, unless they are somehow correct!
    13·1 answer
  • What operation would you do first to simplify 4 × 3 - 3 to the second power + 1 × 8​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!