The difference between 9 thirty- sevens and 8 thirty sevens is 37
Step-by-step explanation:
We need to solve the difference between 9 thirty- sevens and 8 thirty sevens
It can be written in mathematical expression as:

Now solving:

So, The difference between 9 thirty- sevens and 8 thirty sevens is 37
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More information about algebraic expression can be found at:
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Keywords: Difference, Algebra, algebraic expression
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Answer:
(a) It costs $55 at Happy Fruiterer
(b) It will cost $49.64
(c) It is cheaper at Happy Fruiterer the second week
Step-by-step explanation:
Since Fruitz shop sells as 10% less than Happy Fruiterer at $50
10% more of $50 = 50 × 10/100 + 50
= $5 + $50 = $55
(a) n Kg of grapes will cost $55 at Happy Fruiterer
(b) if Happy Fruits discounts $55 by 5%, we will have
55 × 5/100 = 2.75
that is $55 - $2.75 = $52.25
If it is discounted further at 5% more the following week, we will have
$52.25 × 5/100 = $2.6125
≈ $2.61
Then the new price for the 2nd week is $52.25 - $2.61
= $49.64
(c) at the second wee of discounting, Fruitz shop still sells at $50 will Happy Fruiterer now see at $49.64. Therefore, it is cheaper at Happy Fruiterer
<span>In finding the solution for x, the idea is to isolate the variable on one side of the equation
5 - 3x = 2x + 9 |3x is added to the equation first
5 = 5x + 9 | 9 is subtracted from EQ second
-4 = 5x </span>
Answer: 0
Step-by-step explanation:
Given: The temperature was 75 ( units) at noon the temperature increased by 7 by evening to decreased by 7.
I.e. Change in temperature = Increase in temperature - decrease in temperature
=7-7 = 0
Hence, the net temperature change is 0. (Original temperature of 75 (units) remains at the end )