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hammer [34]
2 years ago
15

Question in the picture ​

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
4 0

Answer:

0.21 and 0.13

Step-by-step explanation:

Regular: \frac{4.62}{22} = 0.21

Family: \frac{5.07}{39} = 0.13

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when a certain number is added to 11 and the result is multiplied by 3, the final result is 45 . find the number​
oksian1 [2.3K]

Answer:

4

Step-by-step explanation:

Let the number = x

Added to 11 = 11+x

Multiply result by 3 = 3(11+x)

Final result = 45

Solving

3(11 + x) =45

33 +3x = 45

3x= 45-33

3x=12

X=4 by dividing both side by 3

5 0
3 years ago
If x=0 and x=3 then 3 divided by 2x to the second power minus 2 divided by x to the second power minus 3x
Afina-wow [57]
Answer: undefined in both cases.


Explanation:

1) Expression to evaluate:

\frac{3}{2x^2} - \frac{2}{x^2-3x}

2) You are asked to evaluate that expression for two different cases, x = 0 and x = 3.

3) First case: x = 0

The expression cannot be evaluated at x = 0, because the denominators (both  denominators) equal 0, and the division by 0 is not defined.

So, the answer is undefined.

4) Second case, x = 3

When you replace x = 3 you get:

\frac{3}{2x^2} - \frac{2}{x^2-3x} = \frac{3}{2(3^2)} - \frac{2}{3^2-3(3)} = \frac{3}{18} - \frac{2}{9-9}

Again, this result in a division by 0, so you conclude that it is undefined too.

8 0
2 years ago
Help me is it A B C or D
agasfer [191]
Pretty simple:   The   answer is     D
8 0
3 years ago
You withdraw $29.79 from your bank account. Now your balance is $20.51. Write and solve an equation to find the amount of money i
avanturin [10]
X-29.79=20.51 or 29.79+20.51=x

x=50.30
3 0
3 years ago
Read 2 more answers
The Snow Sports Club from Sierra High School is boarding the tram at Heavenly Valley to ride up to the top of the mountain. The
hoa [83]
17 people and 9 snowboards.
4 0
2 years ago
Read 2 more answers
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