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Sever21 [200]
3 years ago
15

What is the sum of 3/x-3 and x/3-x

Mathematics
1 answer:
KengaRu [80]3 years ago
8 0
You have to get to equal terms
So you have to multiply top and bottom of the left side by 3-x and you have to multiply top and bottom of the right side by x-3
Answer is -x2 (neg x squared) -6x +9
You might be interested in
What is 6,4 rounded to the nearest whole number
Aleks04 [339]
6.4 rounded to the nearest whole number will be 6.

if the decimal was 5 or larger, it would’ve been 7.
6 0
3 years ago
A recipe uses 1/3 cup of brown sugar to make 18 cookies. How many cups of brown sugar are needed to make 45 cookies?
Alenkinab [10]

Answer:

5/6 cups of sugar

Step-by-step explanation:

45 divided by 18 = 2.5

1/3 x 2.5 = 0.83

0.83 = 5/6 cups

3 0
3 years ago
Read 2 more answers
Lucy had half as much money as Mel, but since grandma gave them each $20 she now has three-fifths as much. How much money does L
Elan Coil [88]

Answer:

Lucy has $60

Step-by-step explanation:

Mel had 80

Lucy had 40

Now Mel has 100

and Lucy has 60

60/100 = 3/5

5 0
4 years ago
On a particular Saturday, 60% of the visitors to an art museum were students. If 144 students visited the museum, how many total
pentagon [3]
Hello! To solve this question, we can write and solve a proportion. Because we are looking for the whole, which is the total amount of visitors on a Saturday, set the proportion up like this: 144/x = 60/100. This is because we are looking for the total amount of visitors, and we know that 144 is 60% of x number of visitors. Cross multiply the values in order to get 14,400 = 60x. Now, divide each side by 60 to isolate the "x". 14,400/60 is 240. x = 240. The art museum had 240 visitors that Saturday.
5 0
3 years ago
Read 2 more answers
Solving linear equations
AlexFokin [52]

Answer:

(x, y ) = ( \frac{1}{2}, \frac{5}{2})

Step-by-step explanation:

given the 2 equations

4x + 2y = 7 → (1)

y = 5x → (2)

Substitute y = 5x into equation (1)

4x + 2(5x) = 7

4x + 10x = 7

14x = 7 ( divide both sides by 14 )

x = \frac{7}{14} = \frac{1}{2}

substitute this value into equation (2)

y = 5 × \frac{1}{2} = \frac{5}{2}


4 0
3 years ago
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