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zubka84 [21]
3 years ago
13

A. 18 B. 36 C. 72 D. 216

Mathematics
2 answers:
DerKrebs [107]3 years ago
4 0
The least common denominator would be B. 36
Kay [80]3 years ago
4 0
I hope this helps you

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Ben bought 8 fairy sodas and 5 fairy hotdogs and spent $30.75 fairy dollars. Holly bought 7 fairy sodas and 6 fairy hotdogs and
wlad13 [49]
Set up the system of equations:

8x + 5y = 30.75
7x + 6y = 33

We'll use elimination to solve this system of equations.

Take the coefficients for y in both problems. Multiply one of them by -1:

5 \times -1 = -5

Since this coefficient is taken from the first problem, we'll multiply the entire second problem by this negative coefficient:

(7x + 6y = 33) \times -5 = -35x - 30y = -165

Take the coefficient for y in the second problem and multiply the entire first problem by that coefficient:

(8x + 5y = 30.75) \times 6 = 48x + 30y = 184.50

Your system should now look like this:

48x + 30y = 184.50
-35x - 30y = -165

Combine these two equations to cancel out y:

13x = 19.50

Divide both sides by 5 to get x by itself:

x = 1.5

A fairy soda costs $1.50.

Because we know the value of one of the variables, we can plug it into one of the equations:

8(1.5) + 5y = 30.75
12 + 5y = 30.75

Subtract 12 from both sides:

5y = 18.75

Divide both sides by 5 to get y by itself:

y = 3.75

A fairy hotdog costs $3.75.
6 0
3 years ago
Read 2 more answers
What is the parent function of y=5x-2
bezimeni [28]
I think the parent function is

y=x
3 0
3 years ago
The conference will begin at 8:30 a.m. and will last 5 hours 45 minutes. What time will the conference be over?
Delicious77 [7]

Add the time to the start time:

8:30

1 hour: 9:30 am

2 hours: 10:30am

3 hours: 11:30am

4 hours: 12:30pm

5 hours: 1:30pm

Then 45 minutes makes the time 2:15pm

Answer: 2:15 pm

3 0
3 years ago
7(x-2)=28 Can somebody help me and show the steps?
olya-2409 [2.1K]
Since the 7 is in front of the parentheses you must multiply it by everything inside the parentheses. 7 times X is 7X and 7 times -2 is -14. Then you need to make the X be by itself on one side, to do that you have to add 14 to -14 to make it disappear, and also add 14 to the other side, to 28. Then you divide both sides by 7 to make X be by itself.

7(x-2)=28
7X-14=28
7x=42
X=6

6 0
2 years ago
Karen deposited $25 in the bank on Monday, $50 on Wednesday and $15 on Friday. On Saturday, she took out $40. Karen's original b
natulia [17]
In order to solve this problem, use sign conventions. Since deposit indicates cash inflow, that would take the positive sign. On the other hand, withdrawals take negative sign. We add these integers to the original balance. he solution is as follows:

$100 + $25 + $50 + $15 + (⁻$40) =<em> $150</em>
3 0
3 years ago
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