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Artist 52 [7]
3 years ago
9

The sum of a certain number and -3.4 is -8.1 find the number​

Mathematics
1 answer:
LenKa [72]3 years ago
8 0
-4.7

-8.1 - -3.4= -4.7
-4.7+-3.4=-8.1
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V=2.5(6.4−t)
Alja [10]

Answer:

6.4 minutes ( or 6 minutes and 24 seconds)


Step-by-step explanation:

Filling up the jug means the empty space is 0, hence V = 0.

<em>We plug in 0 into V and solve for t to get the time required to fill it up:</em>

V=2.5(6.4-t)\\0=2.5(6.4-t)\\0=16-2.5t\\2.5t=16\\t=\frac{16}{2.5}\\t=6.4


Hence it will take 6.4 minutes to fill up the jugs.

<u>Note:</u> 0.4 minutes in seconds is  0.4*60=24 seconds

6 0
3 years ago
Write the slope-intercept form of the equation of the line 3x - 2y = -16
denis-greek [22]
We will solve for y.
-3x-16=-2y


Divide both sides by -2
y=\frac{3}{2}x + 8


<u>Slope-intercept form</u>

y=\frac{3}{2}x + 8
5 0
4 years ago
Lisa’s car goes 300 miles on 15 gallons of gas. How fuel efficient is Lisa’s car?
sergejj [24]
300miles÷15=20
Efficient:20miles/gallons of gas
4 0
3 years ago
What is a rational number?
jonny [76]
A rational number is: A number that can be written as a quotient of 2 integers, where the divisor is not 0.

Example: 2/5 , -6, 

Because you can write any integer as a quotient with a denominator of 1, all integers are rational numbers, 

Example: 5 = 5/1

~Aamira~

Hope this helped☺☺
8 0
3 years ago
Read 2 more answers
Is this correct? (No, I'm not 10 im just slow :,) )
Papessa [141]
Top left and bottom right yes the rest no
5 0
3 years ago
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