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2 years ago

X- 0.1x + 2.70 = 56.70 solve for the answer

Mathematics

1 answer:

Angelina_Jolie [31]2 years ago

5 0

Answer:

x=60

Step-by-step explanation:

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Solve. what is the answer to 66 tens- 30 tens=

hram777 [196]

Answer:

36 tens. I think.

66-30=36

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2 years ago

Does -3x+3y=12 and y=x+4 homy many solutions

arlik [135]

Infinitely many solutions.

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2 years ago

Mario is constructing a square dart board. It will consist of a smaller square centered in a larger square. The smaller square m

Ivan

Answer:

6 inches.

Step-by-step explanation:

Let a represent side length of larger square.

We know that area of square is square of its side length, so area of the larger square will be $a^2$ .

The area of smaller square would be $4^2$ .

We will use proportions to solve our given problem.

$\frac{\text{Area of smaller square}}{\text{Area of larger square}}=\frac{4}{9}$

$\frac{4^2}{a^2}=\frac{4}{9}$

$\frac{16}{a^2}=\frac{4}{9}$

Cross multiply:

$4*a^2=16*9$

$\frac{4*a^2}{4}=\frac{16*9}{4}$

$a^2=36$

Take square root:

$a=\pm\sqrt{36}$

$a=\pm 6$

Since the length cannot be negative, therefore, the side length of larger square is 6 inches.

8 0

2 years ago

If 270 people chose math as their favorite subject, how many people were surveyed?

yan [13]

80000000000000000000000

6 0

2 years ago

Find the geometric mean of 275 and 11 275/x=x/11 x^2= 3025 x=sq rt 3025 now I'm not sure what to do.

Bogdan [553]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
you got it
except keep going to get 
x = ±√3025 
x = ± 55 

check: 
275 , 55, 11 
is 55/275 = 11/55 ? YES 
is -55/275 = 11/=55 ? YES

6 0

2 years ago