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Aleonysh [2.5K]
3 years ago
8

If (x, 3.4) is a solution to the equation 3x – 5y = 55, what is the approximate value of x?

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0
The answer is 5(11+y)/3
ExtremeBDS [4]3 years ago
6 0
(x,y)
plug i 3.4 for y


3x-5(3.4)=55
3x-17=55
add 17 both sides
3x=72
divide both sides by 3
x=24

x=24
(24,3.4)
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melamori03 [73]
I believe this is right..

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5 0
3 years ago
above swimming pool is leaking after 1/2 hour the pool has lead 7/8 of a gallon of water how many gallons of water per hour is a
jekas [21]
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7 0
3 years ago
PLEASE HELP ME SOLVE THIS Find all x-values for which f ( x ) = 2 for the function below.
alisha [4.7K]

Answer:

<h3>x = -3</h3>

Step-by-step explanation:

First let us get the equation of the coordinates

y-y0 = m(x-x0)

Using the coordinates ( - 3, 2 ), ( - 1, 0 )

m = 0-2/-1-(-3)

m = -2/2

m = -1

Substitute m = -1 and (-1, 0) into the formula

y - 0 = -1(x+1)

y = -x-1

f(x) = -x-1

Since f(x) = 2

2 = -x-1

-x = 2+1

-x = 3

x = -3

Hence the value of x is -3

3 0
3 years ago
How do you determine if a given set of measurements works for the side lengths of a triangle? (It should be a number)
zaharov [31]
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5 0
3 years ago
The length of the room is 2½ times the breadth. The perimeter of the room is 70 m. What are the length and breadth of the room?
irakobra [83]

Answer:

length=25m

breadth=10m

Step-by-step explanation:

2.5units+2.5units+1unit+1unit=7units

70/7=10

length=10x2.5=25

breadth=10

(sorryy im not really sure but i hope it helps :D)

3 0
3 years ago
Read 2 more answers
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