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iris [78.8K]
2 years ago
9

If y equals 14, what does x equal in the following equation ?

Mathematics
1 answer:
Kaylis [27]2 years ago
4 0

Answer:

None of the above

14 = 3x -7

3x = 21

x = 7

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The school water fountain can only fill 3/4 of a jug at a time. With this amount of water, Mr. Kern can water 3/8 of his plants.
Vesnalui [34]

Answer:

\frac{3}{4}  =  \frac{3}{3}   \\  \frac{3}{8}  = x \\ x =  \frac{3}{8}  \times  \frac{4}{3}  \\ x =  \frac{1}{2}

5 0
2 years ago
Sam brought brushes for $8,a palette for $5,and oil paints for $15.He paid 29.82 in all.What sale-tax rate did Sam pay?
sertanlavr [38]
8+5+15=28 
29.82-28=    1.82 or 182%



5 0
3 years ago
3 times a number m use a equation plz
lawyer [7]

Answer: 3m

Step-by-step explanation:

You're multiply 3 by m. Since this isn't possible unless you have m's value, you must write the expression as 3m.

7 0
3 years ago
Assume that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. The growth in the sale of motorcycles
OverLord2011 [107]

Answer:

Final answer is approx 6.644 years.

Step-by-step explanation:

Given that a company sold 5.75 million motorcycles and 3.5 million cars in the year 2010. The growth in the sale of motorcycles is 16% every year and that of cars is 25% every year.

So we can use growth formula:

A=P\left(1+r\right)^t

Then we get equation for motorcycles and cars as:

A=5.75\left(1+0.16\right)^t

A=3.5\left(1+0.25\right)^t

Now we need to find about when the sale of cars will be more than the sale of motorcycles. So we get:

3.5\left(1+0.25\right)^t>5.75\left(1+0.16\right)^t

3.5\left(1.25\right)^t>5.75\left(1.16\right)^t

3.5\left(1.25\right)^t>5.75\left(1.16\right)^t

\frac{\left(1.25\right)^t}{\left(1.16\right)^t}>\frac{5.75}{3.5}

\left(\frac{1.25}{1.16}\right)^t>1.64285714286

t\cdot\ln\left(\frac{1.25}{1.16}\right)>\ln\left(1.64285714286\right)

t>\frac{\ln\left(1.64285714286\right)}{\ln\left(\frac{1.25}{1.16}\right)}

t>6.6436473051

Hence final answer is approx 6.644 years.

7 0
3 years ago
The cost of a set of 4 tire is $192. What is the unit rate for the cost of 1 tire?
hammer [34]
192 divided by 4 = 48

It costs $48 for one tire
4 0
3 years ago
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