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2 years ago

Help pleaseeeeeeeeeeeee

Mathematics

1 answer:

Rasek [7]2 years ago

6 0

Answer:

no because it would be flipped

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Lowest common multiple of 9

ch4aika [34]

Is 3.

3×3=9

Hope this helps!

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3 years ago

PLEASE ANSWER QUICKLY

Travka [436]

Answer:

63 :)

Step-by-step explanation:

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3 years ago

Multiple Step Equations

Wittaler [7]

The answer is D.

The first step is to use the distributive property and turn 5(x-4) into 5x - 20.
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3 years ago

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If FG = 10, GH = 7x, and FH = 9x, what is FH? F 10 G H 9x

Nostrana [21]

Answer: FH is 9x, given in the question

It's 45 if you solve for x and plug in x=5

Step-by-step explanation:

FG+GH =FH

10+7x= 9x

10=2x

x=5

FG+GH=FH

10 +7(5) = 9(5)

10 + 35 =45

4 0

3 years ago

How many L of A 90% saline solution must be mixed with 4 L of a 50% saline solution to make a 74% solution ?

insens350 [35]

Answer:

6 L

Step-by-step explanation:

Given two solutions:

1st solution is 90% saline solution. Let the volume of this solution be $x$ litres.

2nd solution is 50% saline solution. Volume of this solution = 4 L

Resultant solution is 74% saline.

To find:

The volume of 1st solution = ?

Solution:

Total volume of the 74% saline mixture = (4+ $x$ ) Litres

We can write equation here, as per the percentage of saline in the mixtures.

90% of $x$ L + 50% of 4 L = 74% of ( $x$ +4)

$\Rightarrow \dfrac{90x}{100} + \dfrac{50}{100}\times 4 = \dfrac{74}{100}\times (x+4)\\\Rightarrow 90x + 200 = 74x+296\\\Rightarrow 90x-74x = 296-200\\\Rightarrow 16x = 96\\\Rightarrow x = \bold{6\ L}$

Therefore, the volume must be 6 L.

8 0

3 years ago