Let x be the number of months.
The first plan is 15 dollars sign up fee and 38 dollars per month. So the equation is 38x + 15.
The second plan is 78 dollars as sign up fee and 31 dollars per month. So the equation is 31x + 78.
We need find when x has the same value in both equations, so we do their equality:
38x + 15 = 31x + 78
Let's subtract 15 from both sides
38x + 15 = 31x + 78
38x + 15 - 15 = 31x + 78 - 15
38x = 31x + 63
Now let's subtract 31x from both sides to have the variables on a side and the numbers on side:
38x = 31x + 63
38x - 31x = 31x - 31x + 63
7x = 63
Divide both sides by 7 to have the variable x on a side and its value on the other:
(7x)/7 = 63/7
x = 9
So at month 9, the 2 plans will cost the same.
Let's check our answers, and let y be the cost:
y = 38x + 15 = 38*9 + 15 = 357
y = 31x + 78 = 31*9 + 78 = 357
Our answer has been approved.
Hope this helps! :D
Answer:
45 slices of turkey used
Step-by-step explanation:
In order to figure out this problem we first need to calculate the total amount of sandwiches that were ordered. Since 27 regular sandwiches were ordered and we know that three times as many customers ordered the regular sandwich as the large sandwich. Then we simply divide 27 by 3 to find out how many large sandwiches were ordered.
27 / 3 = 9 large sandwiches.
Now, assuming that each regular sandwich only takes one slice of turkey, we can multiply 9 by 2 since each large sandwich takes double the slices and add that to 27 to calculate the total number of slices used in all of the sandwiches for that day.
(9*2) + 27 = s
18 + 27 = s
45 = s
There were a total of 45 slices of turkey used.
Answer:
120cm
Step-by-step explanation:
i hope this helps you
Answer:
<h2>Add up all the digits</h2><h2 /><h2>4+5+6=15</h2><h2 /><h2>The sum of the digits must be equal to 9 so,</h2><h2 /><h2>15=9</h2><h2 /><h2>15–9=0</h2><h2 /><h2>So,it is equal to 6.If we subtract 6 from 456 i.e.,</h2><h2 /><h2>=456–6</h2><h2 /><h2>=450</h2><h2 /><h2>Which is divisible by 9 so,the answer is 6.But if we subtract any digit less than 6 it will not be divisible by 9.</h2>
Step-by-step explanation:
<h2>
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