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KIM [24]
3 years ago
7

What is the y-value when x equals 30?y = 350 - 25(x)​

Mathematics
1 answer:
sp2606 [1]3 years ago
3 0

Answer:

y = -400

Step-by-step explanation:

y = 350 - 25(x)​

Let x = 30

y = 350 - 25*30

y = 350 - 750

y = -400

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The cost to install x number of central air conditioning units for a company is given by the function C(x) = 4000x +1300/3 Use t
Vesna [10]

Given:

The cost to install x number of central air conditioning units for a company is given by the function

C(x)=\dfrac{4000x+1300}{3}

To find:

The cost to install 45 air conditioners.

Solution:

We have,

C(x)=\dfrac{4000x+1300}{3}

Putting x=45, we get

C(45)=\dfrac{4000(45)+1300}{3}

C(45)=\dfrac{180000+1300}{3}

C(45)=\dfrac{181300}{3}

C(45)=60433.3333...

C(45)\approx 60433.33

Therefore, the cost to install 45 air conditioners is $60433.33.

4 0
2 years ago
Solve the compound inequality. 3x − 4 > 5 or 1 − 2x ≥ 7 A. x ≤ −3 or x > 3 B. x −3 or x ≤ 3
iris [78.8K]

Answer: B

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
I put $500 in a saving account that warns 7% interest compounded quarterly. How much will be in the account after 1 year? Rounde
Fantom [35]
\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$500\\
r=rate\to 7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, thus four}
\end{array}\to &4\\
t=years\to &1
\end{cases}
\\\\\\
A=500\left(1+\frac{0.07}{4}\right)^{4\cdot 1}\implies A=500(1.0175)^4\implies A\approx 535.92951564
5 0
3 years ago
. An urn contains 6 blue and 5 red marbles. Reach in and grab one marble and then another (without replacing the first one). Wha
natima [27]

Probability that you have chosen 2 red marbles is 3/11

<h2>How to solve?</h2>

Total number of marbles = 6 + 5 = 11

Number of red marbles = 6

Number of blue marbles = 5

Important Points:

1. Replacement is not allowed

2. Blue is followed by Red

Probability has been introduced in Maths to predict how likely events are to happen. The meaning of probability is basically the extent to which something is likely to happen.

Probability of Blue first = 5/11

Probability of Red second = 6/10 (one marble is already taken out)

Probability = 5/11 * 6/10 = 3/11

Learn more about Probability:

brainly.com/question/4313883

#SPJ4

8 0
1 year ago
The ratio of catfish to trout in the local pond is 2 to 5. If there are 300 catfish in the pond, how many trout are there?
kumpel [21]
You would do 300/5 since there are 300 catfish

Then multiply the resulting number (60) by 2

The answer is 120
3 0
3 years ago
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