2 years ago

Help plz..And No links!! I repeat No links!!

Mathematics

1 answer:

melamori03 [73]2 years ago

4 0

Answer:

the first

Step-by-step explanation:

i did the test

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Step-by-step explanation:

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Solve the equation. –3x + 1 + 10x = x + 4 x = 1/2 x = 5/6 x = 12 x = 18

elena-s [515]

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2 years ago

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Eugene walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph.

Fynjy0 [20]

$\text{Answer: }1\frac{23}{40}\ miles\text{ far she live from school.}$

Explanation:

Since we have given that

Speed at which Eugene walked all the way to school = 3 mph

After realizing that she forgot her math book, she ran back

Speed at which Eugene walked back to her house = 7 mph

Let the distance between her house and her school be x

According to question,

$\frac{x}{3}+\frac{x}{7}=\frac{45}{60}\\\\\frac{7x+3x}{21}=\frac{3}{4}\\\\\frac{10x}{21}=\frac{3}{4}\\\\x=\frac{3\times 63}{4\times 10}=\frac{63}{40}=1\frac{23}{40}\ miles.$

Hence,

$1\frac{23}{40}\ miles\text{ far she live from school.}$

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2 years ago

Which rational expression has a value of 0 when x=-2

Ad libitum [116K]

Im sorry. I need the options to answer this...
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