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mr Goodwill [35]

3 years ago

8

A 30% acid solution was mixed with a 10% acid solution. The result was 600g of a 15% solution. How much of each solution was use

d for the mixture?

1 answer:

AlexFokin [52]3 years ago

3 0

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I need help with this I put this out 3 times I need help

anzhelika [568]

Prompt
What is a row?

4 0

3 years ago

How much is 3 x4x5x6x7x9

Xelga [282]

3x4=12 12x5=60 60x6=360 360x7=2,530 2,530x9=22,690

4 0

3 years ago

F left parenthesis x right parenthesis equals 9 x cubed plus 2 x squared minus 5 x plus 4 and g left parenthesis x right parenth

Jet001 [13]

The answer is 2x(2x²+x+1).

When we subtract polynomials we combine like terms:
(9x³+2x²-5x+4)-(5x³-7x+4)

9x³-5x³=4x³
2x²- 0 = 2x²
-5x--7x=-5x+7x=2x
4-4=0

This gives us
4x³+2x²+2x

Each of these is divisible by 2, and each has an x, so we factor those out:
2x( )

4x³/2x = 2x²:
2x(2x² )

2x²/2x=x:
2x(2x²+x )

2x/2x = 1:
2x(2x²+x+1)

3 0

3 years ago

A satellite is composed of 30 modular units, each of which is equipped with a set of sensors, some of which have been upgraded.

Anit [1.1K]

Answer:

$\frac{1}{7}$

Step-by-step explanation:

The satellite has 30 modular units.

There are equal numbers of non-upgraded sensors in each unit.

Let us assume that on the entire satellite there are x numbers of upgraded sensors.

Then as per the given condition, there are $\frac{x}{5}$ number of non-upgraded sensors in one unit.

Therefore, the number of non-upgraded sensors on the entire satellite is $\frac{30x}{5}$ =6x

Hence, total number of sensors in the satellite is (x+ 6x) =7x

Therefore, the required fraction of the upgraded sensors is $\frac{x}{7x} =\frac{1}{7}$ . (Answer)

3 0

3 years ago

The average dog's running speed is about 20 miles per hour. If there are 5,280 feet in a mile, approximately how many feet can t

Nataly [62]

Answer:

B. 29

Step-by-step explanation:

Multiply your original speed by the amount of feet in a mile (5230) then divide by 3600.

3 0

3 years ago