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Nutka1998 [239]
3 years ago
10

Is x = 6 a solution to the equation 5(x – 3) = x + 13?

Mathematics
2 answers:
nekit [7.7K]3 years ago
7 0

Answer:

Yes, both equations will always work, but yes, at times it is more logical to use one over the other. for instance:

x-4y=6

x+4y=12

we see here that elimination would best fit:

x+x+4y-4y=6+12

or:

x=2y-3

7x+3y-81=23

substitute (2y-3) for x.

Also, once you have a single placeholder, put it ito quadratic form (ax^2+bx+c=0)

and use the quadratic formula:

x=(-b±sqrt(b^2-4ac))/2a

g100num [7]3 years ago
4 0

Answer:

No, X=7

Step-by-step explanation:

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73 and 4.4 x 10 to the 6th power
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Answer:

4,400,073

Step-by-step explanation:

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8 0
3 years ago
Bonita deposited 1300 into a bank account that earned 5.75% simple interest each year. She earned $299 in interest before closin
worty [1.4K]

Answer:

For 4 years the money was in the account .

Step-by-step explanation:

Formula

Simple\ interest = \frac{Principle\times Rate\times Time}{100}

As given

Bonita deposited 1300 into a bank account that earned 5.75% simple interest each year.

She earned $299 in interest before closing the account.

Principle = $1300

Rate = 5.75%

Simple interest = $299

Putting all the values in the formula

299 = \frac{1300\times 5.75\times Time}{100}

Time= \frac{299\times 100}{1300\times 5.75}

Time= \frac{29900\times 100}{1300\times 575}

Time= \frac{2990000}{747500}

Time = 4 years

Therefore for 4 years the money was in the account .


8 0
3 years ago
Round 65754.59 to the nearest tenth
V125BC [204]
65754.6 because the 9 in the hundreds place bumps up the five in the tenths
8 0
3 years ago
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I NEED HELP I NEED TO PASS THIS
tatuchka [14]

Answer:

A. the area of the large pond is 16 times the area of the small pond

Step-by-step explanation:

let's say 4 is the radius of the small circle, which means the area is 50.26548

if the large circle is 4 times the small circle, that means it's radius is 16 which means the area is 804.24772

so if you divide the big circle area by the small circle area:

804.24772/50.26548

it gives you 16.00000079577 which is rounded to 16

therefore, the bigger circle is 16 times bigger than the smaller circle

4 0
3 years ago
What is 87,200,000 written in scientific notation?
Elan Coil [88]

Answer:

8.72 • 10^7

Step-by-step explanation:

3 0
4 years ago
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