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Anna71 [15]
2 years ago
14

In the lab, Christine has two solutions that contain alcohol and is mixing them with each other. She uses 400 milliliters less o

f Solution A than Solution B. Solution A is 14% alcohol and Solution B is 20% alcohol. How many milliliters of Solution B does she use, if the resulting mixture has 488 milliliters of pure alcohol?
Mathematics
1 answer:
Greeley [361]2 years ago
5 0

Answer:

ok

Step-by-step explanation:

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Bernard designs motorized bicycles at Smart Gear Technologies. His total earnings are
olganol [36]

Answer: $43146

Step-by-step explanation:

So his total earning is $54,000. He has to pay $201 for every $1,000 he earns. So 54,000/1,000= 54. So now he has to pay 54*201=10854, 54000-10854=43146. His net income for this year is $43146.

8 0
3 years ago
Look at the figure. Which trigonometric ratio should you use to find x?
Elis [28]

Answer:

B.  Sine.

Step-by-step explanation:

We need to find the value of x which is opposite to the given angle  (50 degree).  Also we are given the length of the hypotenuse.

Sine = opposite / hypotenuse so we would use the sine.

Its worth committing this mnemonic to memory, which helps to find the required trig ratio:

SOH-CAH-TOA.

SineOpposite/Hypotenuse- CosineAdjacent/Hypotenuse-TangentOpposite/Adjacent.

4 0
2 years ago
If 10% of x is 30, what is 23% of x <br> A. 33<br> B. 46<br> C. 200<br> D. 230
aliina [53]

Answer:

69

Step-by-step explanation:

I'm mathematics, the word 'of' transfers into becoming 'times or Multiply'

Therefore, the expression can be rewritten as:

10/100 of x = 30

10x / 100 = 30

Cross Multiply the equation to solve for x

10x = 100 * 30

10x = 3000

x = 3000 / 10

x = 300

(Since we gotten the value of x as 300) let's find 23% of it.

Therefore,

23% of x, ( when x is 300)

= 23/100 * 300

= 23 * 3

= 69

(Well, although that's the workable solution, the option doesn't seen to tally)

Maybe you check the source, but am certain about the Solution.

Let's keep learning, maths is fun !

3 0
3 years ago
Read 2 more answers
Is 6 (7) + 2 (3²) = 60?​
sertanlavr [38]

Answer:

yes 6 (7) + 2 (3²) = 60

Step-by-step explanation:

60 = 60

3 0
2 years ago
Read 2 more answers
Jose reads his book at an average rate of 2.5 pages every four minutes. If Jose continues to read at exactly the same rate what
madreJ [45]

it would take him 32 minutes. You could use divisoin and multiplecation to figure it out

7 0
2 years ago
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