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jeka57 [31]
3 years ago
11

Does anyone know the answer??

Mathematics
1 answer:
vichka [17]3 years ago
7 0

Answer:

100.00

Step-by-step explanation:

x=number of months until the costs are the same

50 + 20x = 25 + 30x

25 = 10x

x = 2.5 months

50 + 2.5(20) =$100.00

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Which expression is equivalent to (x^6×x^10/×^-3)^2 and why?
mixer [17]

Answer:

The solution for the given expression is x^{38} , i.e option C

Step-by-step explanation:

Given expression as :

(\dfrac{x^{6}\times x^{10}}{x^{-3}})^{2}

Now, From the common radix method

<u>∵ In multiplication of radix , if the radix is same , then power is added</u>

I.e x^{6}\times x^{10 = x^{6+10}

Or , x^{6}\times x^{10 = x^{16}

Now, The expression can be written as

(\frac{x^{16}}{x^{-3}})^{2}

<u>And In Division of radix , if the radix is same , then power is subtracted</u>

So, \frac{x^{16}}{x^{-3}}

Or, x^{16 - (-)3}

Or,  x^{16 + 3}

or, x^{19}

∴ The expression is now

(x^{19})²

Now, again this is written as

x^{19} × x^{19}

I.e here again the radix is same and in multiple for, so, power is added

∴ x^{19} × x^{19}  = x^{19+19}

I.e x^{19} × x^{19} =  x^{38}

Hence The solution for the given expression is x^{38} , i.e option C  . Answer

6 0
4 years ago
Oil flows back and forth between a small and large tank. When oil is moving into the large tank, the flow rate is
Vladimir [108]

Answer:

so the answer is =6187200

Step-by-step explanation:

600 divide by 4=150

150 multiply 32=4800

4800 divided by 1289=6187200.

3 0
3 years ago
Read 2 more answers
If g(x)= 4x^2-16 we’re shifted 9 units to the right and 1 down, what would the new equation be
ser-zykov [4K]

Answer:

A

Step-by-step explanation:

A shift along the x-axis is the opposite in the graph than in the equation. Rather than the x-intercept(s) being negative if the equation is x - n, they become positive; likewise for the other way around. A is the only answer that follows this rule. However, the y-intercept is y = n, so if n is negative, y gets shifted down rather than up.

6 0
4 years ago
at a farm the ratio of cows to horses was 7:2 if there were 21 cows at the farm how many horses were there
allochka39001 [22]
6

Ratio can be rate but rate can never be ratio. In essence, rate is comparison between ratios.  While ratio is comparison between two or more numbers. Further, ratio on one hand, involves numbers either in amount, size, measurement, degrees, percentages or fractions with the absence of specific unit of measurement. On the contrary, rate is comparing quantities, amounts or unit of events happened expressed in a specific measurement or expressed under time. Take for instance, an example, Joe eats 2 while John eats 4 meals in a day. The ratio can be Joe: John, 2:4 meals. While the rate, is Joe eats 2 meals/day and John 4 meals/day. 

3 0
3 years ago
Solve 81^x = 27^^^x + 2.<br><br> A. x = 1<br> B. x = 2<br> C. x = 5<br> D. x = 6
omeli [17]

Answer:

x=6

Step-by-step explanation:

81^x=27^(x+2)

3^4x=3^3(x+2)

4x=3(x+2)

4x=3x+6

x=6

6 0
3 years ago
Read 2 more answers
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