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Anastaziya [24]
3 years ago
11

I don't remember how to do this

Mathematics
1 answer:
meriva3 years ago
4 0
B. Fractions have to have the same denominator so \frac{9}{10}  -  \frac{2}{5} =  \frac{9}{10} -  \frac{4}{10} which = \frac{5}{10} then you simplfy it to \frac{1}{2} so it would be B
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Racheal was packing some of her old stuff into a box. A box can hold eight pounds, but she only filled it up two-quarters full.
ElenaW [278]
4 pounds.. Take 8 pounds times the fraction 2/4 which is also 1/2 and you get 4
8 0
3 years ago
there are 3 times more students who play trumpet than the tuba. which expression represents the total number of trumpeters based
beks73 [17]
The equation would look like:
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3 0
3 years ago
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Three less than 2 times a number is 55. What is the number?
-Dominant- [34]
Let the number be x.

2x-3=55
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6 0
3 years ago
Pls help me i dont care if u get it wrong it wont bother me but pls help me :/
Naddika [18.5K]

Answer:

3; 6; 9; 12; 15; 18;

Step-by-step explanation:

Multiples of 3:

3*1=3

3*2=6

3*3=9

3*4=12

3*5=15

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5 0
3 years ago
Read 2 more answers
F(x)=-2(x-3)(x+5) convert quadratic functions to standard form​
jasenka [17]

Answer:

The answer is: f(x) = -2x^2 - 4x + 30

Step-by-step explanation:

Given:

f(x)=-2(x-3)(x+5)

Solve (x-3)(x+5) first, then multiply by -2:

f(x) = -2[(x - 3)(x + 5)]

f(x) = -2[x^2 -3x + 5x - 15]

f(x) = -2[x^2 + 2x - 15]

f(x) = -2x^2 - 4x + 30

Hope this Helps!! Have an Awesome Day!! (-:

4 0
3 years ago
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