3 years ago

How do I answer 3 and 4

Mathematics

2 answers:

RSB [31]3 years ago

6 0

Answer:

yo have to think very hard about it

dmitriy555 [2]3 years ago

5 0

sorry, I don't have an answer but I do want to know myself

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In january of one winter, 3/10 of a wood pile was used in a wood stove. In February, 2/5 of the wood pile was used. What part of

arsen [322]

2/5 is equivalent to 4/10 so at the end of February 4/10 was used up
And at the end of January, 3/10 was used
so 4/10 + 3/10 = 7/10

At the end of February, 7/10 of the wood was used

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3 years ago

A drawing has a scale 1/4 in: 12ft. How long is 8ft?

allochka39001 [22]

If you use a proportion, you'll get:

$\frac{0.25}{12} = \frac{x}{8}$

Then, you use cross products:

$12x=0.25(8) \\ 12x=2$

Then, you algebraically solve x:

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3 years ago

What is 2017( as i year) minus 4000 years

balu736 [363]

2017 - 4000 = -2017. Hope it helps!

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3 years ago

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Tickets to Disneyland used to cost $109. They have decided to increase the price by 41%. What is the new cost of disneyland tick

Yanka [14]

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the answer is $153.69

3 0

3 years ago

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Kay [80]

$- (4x - 15) \geqslant - 9(3 + x) \\ - 4x + 15 \geqslant - 27 - 9x \\ - 4x + 9x \geqslant - 27 - 15 \\ 5x \geqslant - 42 \\ x \geqslant - 8 \dfrac{2}{5}$

$21 + x > 2( - 2 - 5x) + 6x \\ 21 + x > - 4 - 10x + 6x \\ x + 10x - 6x > - 4 - 21 \\ 5x > - 25 \\ x > - 5$

Hope this helps. - M

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3 years ago