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dangina [55]
2 years ago
15

Can someone help me.

Mathematics
1 answer:
Helen [10]2 years ago
3 0

The solutions of the equations for x are given as follows:

a. x = 36.

b. x = 15.

<h3>What is the solution for item a?</h3>

The equation for item a is given by:

x/3 - 5 = 7

Isolating x, we have that:

x/3 = 12

x = 3 x 12

x = 36.

<h3>What is the solution for item b?</h3>

The equation for item b is given by:

x/2 - 5 = 2.5

Isolating x, we have that:

x/2 = 7.5

x = 7.5 x 2

x = 15.

Hence the solutions are:

a. x = 36.

b. x = 15.

More can be learned about equations at brainly.com/question/25537936

#SPJ1

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3 years ago
What is the HCF of 20, 45 and 15
nekit [7.7K]

Answer:

5

Step-by-step explanation:

Find the greatest common divisor:

gcd(20, 45, 15)

Find the divisors of each integer and select the largest element they have in common:

The divisors of 20 are:

1, 2, 4, 5, 10, 20

The divisors of 45 are:

1, 3, 5, 9, 15, 45

The divisors of 15 are:

1, 3, 5, 15

The largest number common to all divisor lists is 5:

divisors of 20: 1, 2, 4, 5, 10, 20

divisors of 45: 1, 3, 5, 9, 15, 45

divisors of 15: 1, 3, 5, 15

Answer: gcd(20, 45, 15) = 5

7 0
3 years ago
Ms. Bell's mathematics class consists of 12 sophomores, 8 juniors, and 9 seniors. How many different ways can Ms. Bell create a
shtirl [24]

Answer:

792

Step-by-step explanation:

It's a combination question. The order is of no consequence. Also the fact that there are juniors and seniors is not important either.

So the answer is

12C5

12!

====

(12 - 5)! * 5!

12 * 11 * 10 * 9 * 8

==============

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792

7 0
3 years ago
Which expression is equivalent to 128x^5y^6 \ 2x^7y^5 ? Assume x &gt; 0 and y &gt; 0.
N76 [4]

Answer: Last option.

Step-by-step explanation:

Given the expression:

\sqrt{\frac{128x^5y^6}{2x^7y^5}

The Quotient of powers property states that:

\frac{a^m}{a^n}=a^{(m-n)}

And the Power of a powet property states that:

(a^m)^n=a^{mn}

Then, applying these properties, you get:

=\sqrt{\frac{(2^3)^26y}{x^2}

Now you must remember that:

\sqrt[a]{a^n}=a

Therefore, simpliying the expression, you get:

=\frac{2^3\sqrt{y}}{x}=\frac{8\sqrt{y}}{x}

7 0
3 years ago
Read 2 more answers
4.23×10 to the third power in standard notation/4.23×10 to the third power equals 4.23 times blank equals blank
vredina [299]

9514 1404 393

Answer:

  4230

Step-by-step explanation:

  4.23×10³ = 4.23×<u>1000</u> = <u>4230</u>

6 0
3 years ago
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