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3 years ago

1/2 + 9/10 + 4/5 A. 2 1/5 B. 2 2/10C. 14/17D. 22/10

Mathematics

2 answers:

worty [1.4K]3 years ago

8 0

Here is the answer so yo you don't get confused

lora16 [44]3 years ago

5 0

I didn't state this earlier, but you should find the common denominator so in this case it is 10.
1/2=5/10, 9/10 stays the same, and 4/5=8/10.
Now you add them up.
5/10 + 9/10 + 8/10 = 22/10
22/10 = 2 2/10
2 2/10 = 2 1/5
Answer: A. 2 1/5

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In other words:

$x\left(2x+3\right)=2x^2+3x$

Step-by-step explanation:

Given the expression

$x\left(2x+3\right)$

solving

$x\left(2x+3\right)$

$\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$

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$=x\cdot \:2x+x\cdot \:3$

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Thus,

$x\left(2x+3\right)=2x^2+3x$

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