Fill in the missing work and justification for step 2 when solving 3(x + 2) = 12.
1 answer:
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The surface area of right rectangular prism is 150 square centimeter
<em><u>Solution:</u></em>
The surface area of a right rectangular prism can be found by finding the sum of the area of each of the faces of the prism
To find: surface area of right rectangular prism
Given that,
length = 4 cm
width = 9 cm
height = 3 cm
<em><u>The formula for surface area of rectangular prism is given as:</u></em>
A = 2(lw + hl + hw)
Where, "l" is the length and "h" is the height and "w" is the width
Substituting the given values, we get'
Thus surface area of right rectangular prism is 150 square centimeter
Answer:
Georgina should add 3 liters of 49% citric acid solution.
Step-by-step explanation:
let x be the liters of 49% solution that Georgina should add. Then after she has added 0.5 liters of water, the total liters of solution she has will be
and 42% of this should be the solute:
and since adding water does not add any solvent, this amount must come from the 49% citric acid solution; therefore
Solving for we get:
This the amount of 49% citric acid solution Georgina must add.