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Hunter-Best [27]
3 years ago
10

Lucas is offered either 15% or 21$ off his total shopping bill. How much would have to be spent to make 15% option the best one?

Mathematics
1 answer:
Harman [31]3 years ago
8 0
Assume that the amount of money that Lucas would have to spend is "x".

Now, Lucas is offered:
either 15% of his total shopping which can be written as 0.15x
or 21$

We want the 15% to be a better option, therefore:
0.15x > 21

Solve the inequality for x:
0.15x > 21
x > 21/0.15
x > 140

Therefore, for the 15% back to be a better option, Lucas has to spend more than $140
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Schach [20]

Answer:

(x + 7)(x + 8)

Step-by-step explanation:

{x}^{2}  + 15x + 56 \\ =   {x}^{2}  + 8x + 7x + 56 \\  =  {x}(x + 8) + 7(x + 8) \\  = \huge \red{ \boxed{ (x + 8)(x + 7)}}

4 0
3 years ago
Can someone help me with this question?
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Try this solution:

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3 years ago
Given f(x) = 2x and h(x) = 2 - 6x<br>Find (f + h) (x)<br><br><br>​
gulaghasi [49]

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idk

Step-by-step explanation:

6 0
2 years ago
Using a savings amount of $450, assume you deposited the total amount
ankoles [38]

Answer:

<h2> 7.3%</h2>

Step-by-step explanation:

Using the formula for calculating the simple interest to get the rate of return;

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Given Principal = $450,

Time (in years) = 1 year

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Rate (in %) =?

Substituting the given values in the given formula to get the rate;

32.75 = 450*1*R/100

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4 0
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Eight times a number increased by 6 is 62
N76 [4]
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The answer is 7. Hope this helps!
3 0
3 years ago
Read 2 more answers
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