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3 years ago

13,14,15,16, and 17 please! Respond as fast as possible Show work for all please!!! Thanks!

Mathematics

2 answers:

katen-ka-za [31]3 years ago

4 0

13. # books * 2
97 * 2
A

14. 4.5 km/21 min = 7.5 km = x min
cross multiply
4.5x = 7.5(21)
4.5x = 157.5
x = 35 min
B

15. 9.60/12 = x/4
cross multiply
12x = 4(9.60)
12x = 38.40
x = 3.20
C

16. 18% move decimal two places to the left and drop the % sign
0.18
A

17. d = rt
d = 2(55)
d = 110 miles
150 - 110 = 40 miles remaining
A

netineya [11]3 years ago

3 0

13) A
14)B
15)C
16)A
17)A

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Simplify each polynomial. 6g+8k-9g+2k -4x+6x²+5x a²+5a-3a² 3x²+8x+7x

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1. 10k-3g
2. 6x squared +x
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3 years ago

Which statement is true? A. Every rational number is a square root. B. Every irrational number is a fraction. C. Every rational

Yuri [45]

every rational number can be written as a fraction

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4 years ago

Somebody help me out

Bumek [7]

The number that produces an irrational number when multiplied by 0.4 is 3π. The correct option is A. $3\pi$

To determine which number produces an irrational number when multiplied by 0.4

First and foremost, 0.4 is a rational number.

A rational number is a number that is of the form $\frac{p}{q}$ where p and q are integers and q is not equal to 0.

0.4 can be written as $\frac{4}{10}$ or $\frac{2}{5}$ , hence, it is a rational number.

Now,

Any irrational number when multiplied by a rational number other than zero will also be irrational.

Therefore, we are to determine which of the given options is an irrational number.

For option A. 3π

π is an irrational number, therefore 3π is also an irrational number

For option B. 0.444...

0.444... can be expressed as 4/9, therefore it is a rational number

For option C. $\sqrt{9}$

$\sqrt{9}$ = 3, which can be expressed as 3/1, therefore it is a rational number

For option D. $\frac{2}{7}$

$\frac{2}{7}$ is a rational number

The only irrational number among the given options is 3π

Hence, the number that produces an irrational number when multiplied by 0.4 is 3π. The correct option is A. $3\pi$

Learn more here: brainly.com/question/11763957

8 0

2 years ago

Which of the following values is equal to - ( -3.7 ) ?

lara [203]

Two negatives make a positive. So, -(-3.7) = 3.7.

The correct answer it C.

Hope this helps,

Bri

5 0

4 years ago

A children's birthday party at an indoor play center costs $50 to rent the space and $6.25 per child. Gina wants to spend no mor

kobusy [5.1K]

A.) 50 + 6.25x ≤ 100; x ≤ 8

There is a flat rate of $50 and 6.25 per child. This would be written as 50 + 6.25x . It has to be less than or equal to $100, since the directions state that you cannot pay more than $100.

Then you would solve the inequality.

Subtract 50 from both sides so the inequality looks like this:

6.25x ≤ 50

Then, divide 6.25 from 50. You should get x≤8.

8 0

3 years ago