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
sergiy2304 [10]
3 years ago
9

8x=10y2x-y=5solve x and y

Mathematics
1 answer:
GalinKa [24]3 years ago
6 0
8x=10y\\
2x-y=5\\\\
4x=5y\\
y=2x-5\\\\
4x=5(2x-5)\\
4x=10x-25\\
6x=25\\
x=\frac{25}{6}\\\\
y=2\cdot\frac{25}{6}-5\\
y=\frac{25}{3}-\frac{15}{3}\\
y=\frac{10}{3}


You might be interested in
What is the greatest whole number that rounds to 67,400?What is the least whole number?
RSB [31]
The greatest whole number that rounds to 7,400 would be 7,399. This is because there is no number that is larger than 7,399 that would round up to 7,400, since 7,400 is the next number.

The least whole number that rounds to 7,400 would be 7,401. This is because there is no number that is less than 7,401 that would round up to 7,400, since 7,400 is the next number.
3 0
3 years ago
In a scale drawing, a wall is 1 1 2 inches long. The actual wall is 12 feet long. Find the scale of the drawing.
Readme [11.4K]

Answer:

It is 6.59

Step-by-step explanation:

I'm not really sure but hope it helps<33

6 0
2 years ago
Use the given information to determine the exact trigonometric value.
iren [92.7K]

its C

Step-by-step explanation:

- 2\sqrt5

this is the tan©

but you have to multiply by sqrt 5

so its become -2sqrt5/5

7 0
2 years ago
What are two ways to start solving this equation? Choose BOTH ways.
ElenaW [278]

Answer:

Step-by-step explanation:

use the distributive propriety to get 4c -12 = 8

divide both sides by 4 to get c-3 =2

4 0
2 years ago
Please answer correctly !!!!!!!! Will mark brianliest !!!!!!!!!!!
nexus9112 [7]

Answer:

x=6

Step-by-step explanation:

h(x) = -( x-2)^2 +16

We want when h(x) = 0

0 = -( x-2)^2 +16

Subtract 16 from each side

-16  = -( x-2)^2 +16-16

-16 = -( x-2)^2

Divide by -1

16= ( x-2)^2

Take the square root of each side

±sqrt(16) = sqrt(( x-2)^2 )

±4 = x-2

Add 2 to each sdie

2 ±4 = x-2+2

2+4 = x     2-4 =x

6 =x           -2 =x

since time cannot be negative

x=6

4 0
3 years ago
Other questions:
  • Chris earns $10.00 each time he washes his neighbor’s car. The expression 10x represents Chris' earnings. What does the variable
    7·2 answers
  • Please answer correctly !!!!! Will mark brainliest answer !!!!!!!!!!!
    11·1 answer
  • Which of the binomials below is a factor of this trinomial? 4x2 + 12x + 9
    10·1 answer
  • Add. write your answer as a fraction in simplistic form<br><br> -4 5/9 + 8/9
    15·1 answer
  • A car bought for $20,000. Its value depreciates by 10% each year for 3 years. What is the car's worth after3 years?
    11·1 answer
  • How many kilograms in 312
    15·1 answer
  • Todor was trying to factor 10x^2-5x+15
    7·1 answer
  • Factor the polynomial 3x^2 + 15x + 18
    11·1 answer
  • The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that rela
    10·2 answers
  • The table below shows that the number of miles driven by Lydia is directly
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!