Answer:
false because rounding it will not show the exact number
Answer: I am pretty sure it is a rational number!
Step-by-step explanation:
Let the number of days be x.
Jameer paints 1 wall in 3 days. In 1 day, he paints 1/3 of a wall. In x days, he paints (1/3)x walls.
June paints 2 walls in 5 days. In 1 day, she paints 2/5 of a wall. In x days, she paints (2/5)x walls.
Working together, in x days they paint (1/3)x + (2/5)x walls.
We want to know the number of days they will take to paint 10 walls, so we let the expression equal 10.
(1/3)x + (2/5)x = 10
(5/15)x + (6/15)x = 10
(11/15)x = 10
x = 10 * 15/11
x = 150/11
It will take 150/11 days which is the same as 13.6363... days or approximately 13.6 days.
Answer:
#1
Step-by-step explanation:
The four yellow boxes represent x so together they are 4 * x or 4x. The blue boxes seem to represent -1 and since there are three of them together they are -1 * 3 = -3. 4x + (-3) = 4x - 3.
Answer:
<h2>k = 13</h2>
Step-by-step explanation:
<h3>
</h3>
To solve first change the mixed number to an improper fraction
That's
<h3>
</h3><h3>
</h3>
So we now have
<h3>
</h3>
Move the fraction to the right side of the equation
That's
<h3>
</h3>
Since they have the same denominator we can add them directly
We have
<h3>
</h3>
we have the final answer as
<h3>k = 13</h3>
Hope this helps you
