Answer:
(8, 4 )
Step-by-step explanation:
Given the 2 equations
5x - 5y = 20 → (1)
- 3x + 5y = - 4 → (2)
Add the 2 equations term by term to eliminate the y- term
2x + 0 = 16
2x = 16 ( divide both sides by 2 )
x = 8
Substitute x = 8 into either of the 2 equations and solve for y
Substituting into (2)
- 3(8) + 5y = - 4
- 24 + 5y = - 4 ( add 24 to both sides )
5y = 20 ( divide both sides by 5 )
y = 4
solution is (8, 4 )
Answer:
Whats the question tho
Step-by-step explanation:
:)
Hey ! there
Answer:
- <u>1</u><u>3</u><u> </u>is the answer .
Step-by-step explanation:
In this question we are provided with right angle triangle having <u>hypotenuse</u><u> </u><u>(</u><u> </u><u>longest </u><u>side </u><u>)</u><u> </u><u>=</u><u> </u><u>c </u><u>,</u><u> </u><u>perpendicular</u><u> </u><u>=</u><u> </u><u>5</u><u> </u><u>and </u><u>base </u><u>=</u><u> </u><u>1</u><u>2</u><u> </u><u>.</u> And we are asked to find the length of <u>missing side i.e. hypotenuse</u><u> </u>and if necessary we have to round it off to 2 decimal places.
We can find the missing side by using <u>Pythagorean</u><u> Theorem</u><u> </u><u>.</u> It states that sum of squares of perpendicular and base is equal to square in a right angle triangle that is ,
<u>Where </u><u>,</u>
- H refers to <u>Hypotenuse</u>
- P refers to <u>Perpendicular</u>
- B r refers to <u>Base</u>
<u>SOLUTION</u><u> </u><u>:</u><u> </u><u>-</u>
Substituting value of hypotenuse as c , perpendicular as 5 and base as 12 in formula :
Squaring 5 and 12 :
Adding 25 and 144 :
Applying square root to both sides :
On simplifying , We get :
- <u>Henceforth</u><u> </u><u>,</u><u> </u><u>❝</u><u> </u><u>1</u><u>3</u><u> </u><u>❞</u><u> </u><u>is </u><u>the</u><u> </u><u>length </u><u>of </u><u>missing</u><u> </u><u>side </u><u>.</u>
<u>Verifying</u><u> </u><u>:</u><u> </u><u>-</u>
Now we are checking our answer by putting all values in formula . So ,
- <u>(</u><u> </u><u>1</u><u>3</u><u> </u><u>)</u><u>²</u><u> </u>= ( 5 )² + ( 12 )²
<u>Therefore</u><u> </u><u>,</u><u> </u><u>our </u><u>answer</u><u> is</u><u> correct</u><u> </u><u>.</u>
<h2>
<u>#</u><u>K</u><u>e</u><u>e</u><u>p</u><u> </u><u>Learning</u></h2>
Answer:
1.5 mph
Step-by-step explanation:
To find the Unit Rate, you need to divide 15 miles by 10 hours to get the # of miles per hour.
15/10 = 1.5
1.5 miles per hour.