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serious [3.7K]
3 years ago
12

In a laboratory Solution A will be mixed with Solution B in a ratio of 3 ml to 2 ml. How much of Solution A should be mixed with

10 ml of Solution B? Use any method to solve.
I need an answer and a strategy.
Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

15 ml

Step-by-step explanation:

We will use a proportion to solve this problem. A proportion is setting a ratio equal to another ratio.

We start with the known ratio.

ratio of A to B = A/B = 3/2

Now we write the ratio that contains A as an unknown.

We want the amount of solution B to be 10 ml. Let the amount of solution A be A.

The ratio is A/10.

A/10 and 3/2 must be equal.

A/10 = 3/2

When you set two ratios equal, you have a proportion.

Now we solve the proportion for A.

Cross multiply.

2 * A = 10 * 3

2A = 30

A = 15

Answer: 15 ml

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<h3><u>The value of c is greater than or equal to the value 9.5</u></h3>

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We can treat this inequality like a standard algebraic equation.

<em><u>Divide both sides by 2.</u></em>

c ≥ 9.5

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3 years ago
Packard Corporation reported pretax book income of $501,400. Included in the computation were favorable temporary differences of
Alik [6]

Answer:

<em><u>The answer is</u></em>: <u>The amount of: $ 330,700.</u>

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Step-by-step explanation:

Packard Corporation had a pre-tax book income of $ 501,400. Then he has a favorable amount of $ 11,400 that he would therefore <u>add</u>, and unfavorable amounts of $ 101,400 and $ 80,700 that would be <u>subtracted</u>. The current expense or benefit of the corporation's income tax would be: <u>501,400 + 11,400 - 101,400 - 80,700 = $ 330,700. </u>

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5 0
3 years ago
2.
laiz [17]

Answer:

B) 0.02

Step-by-step explanation:

<u>Use the Binomial Theorem</u>

\displaystyle P(X=x)=\binom{n}{x}p^xq^{n-x}\\\\P(X=4)=\binom{30}{4}(0.30)^4(1-0.30)^{30-4}\\\\P(X=4)=\frac{30!}{4!(30-4)!}(0.30)^4(0.70)^{26}\\ \\P(X=4)=\frac{30!}{4!(26)!}(0.30)^4(0.70)^{26}\\ \\P(X=4)=\frac{30*29*28*27}{4*3*2*1}(0.30)^4(0.70)^{26}\\ \\P(X=4)=27405(0.30)^4(0.70)^{26}\\\\P(X=4)\approx0.0208

We have the probability of success, p=0.30, and the probability of failure, q=1-0.30=0.70. The binomial coefficient, \binom{n}{k}, represents the amount of possible combinations that k items can be chosen out of n items, with its respective formula \frac{n!}{k!(n-k)!}.

Hence, the best choice for the probability that 4 students chosen at random from the class of 30 that want the next test to be on Monday will be option B, 0.02

7 0
2 years ago
In Lixue’s garden, the green pepper plants grew 5 inches in 34 month. At this rate, how many feet can they grow in one month? (L
beks73 [17]

Answer:

<h2>0.15 inches per month</h2>

Step-by-step explanation:

step one:

This problem is focused on the growth rate of a plant.

given data

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and also that 1 month= 4 weeks

step two:

We can still say that

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then 1 months will be X inches

cross multiply we have

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step three:

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Therefore the growth rate would be

0.15 inches per month

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3 years ago
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Answer:

Sis I can't see

Step-by-step explanation:

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Bnnn t is a great place to

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