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Oliga [24]
2 years ago
11

Solve the following equation for a number x. verify that your solution is correct 7(2x+5=4x-9-x

Mathematics
1 answer:
Kisachek [45]2 years ago
8 0
7(2x+5)=4x-9-x
14x+35=3x-9
11x = -44
x = -4

7(2*-4+5)=4*-4-9--4
7(-3)=-21
-21=-21. so it checks out and x = -4
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7 0
3 years ago
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Solve the problem making a chart. A Roman statue is three times as old as Florentine statue. One hundred years from now the Roma
Paraphin [41]

Answer:  300 years

Step-by-step explanation:

Let x be the age of Florentine statue,

Thus, According to the question,

The age of Roman statue = 3 x

After 100 years, the age of Florentine statue = x + 100

And, the age of Roman statue = 3x + 100

Again according to the question,

3x + 100 = 2( x + 100)

3x + 100 = 2x + 200

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Therefore,  the present age of Roman statue = 3 × 100 = 300 years


8 0
2 years ago
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Solve l-20l - l7l PLEASE HELPP IM ON A TEST
tiny-mole [99]

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13

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7 0
3 years ago
Let f(x) = 9x3+ 21x2^ - 14 and g(x) = 3x + 1. Find "<br>f (x) over g (x)​
kondor19780726 [428]

Answer:

\frac{f(x)}{g(x)}=3x^2+6x-2-\frac{12}{3x+1}

Step-by-step explanation:

The first function is f(x)=9x^3+21x^2-14

The second function is g(x)=3x+1.

\frac{f(x)}{g(x)}=\frac{9x^3+21x^2-14}{3x+1}

We perform the long division as shown in the attachment to obtain the quotient as: Q(x)=3x^2+6x-2 and remainder R=-12.

Therefore:

\frac{f(x)}{g(x)}=3x^2+6x-2-\frac{12}{3x+1}

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7 0
3 years ago
Ari borrowed $2000 and paid it back over 3 years. The simple interest rate was 2% annually. How much interest did ari pay over t
sukhopar [10]
If the interst rate is 2% per year and she paid it back after 3 years , it means she paid an extra 6% of $2000 just in interests.

Now we just need to find how much 6% is and add to 2000.

to discover the value of 6% of 2000 we can divide it by 100 ( to find 1%) and then multiply it by 6 ( to find 6%) :

2000 ÷ 100 = 20
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Now add 120 to 2000 to find out how much she paid in total:
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Awnser : She paid the total of $2120 over 3 years

I hope you understood my brief explanation. And please consider marking this awnser as Branliest. Thank you ! :)
6 0
3 years ago
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