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irina [24]
3 years ago
13

Pls help first one gets brainliest (must show work)

Mathematics
2 answers:
worty [1.4K]3 years ago
3 0

Answer:

I got this. Use the order PEMDAS search Up if you don’t know what it means.

Step-by-step explanation:

Start with What’s inside the parentheses

(X - 3) = 3x

(X + 5) = 5x

The divide.

How to divide it - The number coefficients are reduced the same as in simple fractions. When dividing variables, you write the problem as a fraction. Then, using the greatest common factor, you divide the numbers and reduce. You use the rules of exponents to divide variables that are the same — so you subtract the powers.

Monica [59]3 years ago
3 0

Answer:

x= 10

explanation in pics

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Which equation is equivalent to I = prt?
horsena [70]

Answer: Choice D.  P = i/rt

This is the same as saying P = i/(rt). The parenthesis are preferred in my opinion to indicate we have rt in the denominator and not just r.

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

Explanation:

In the original equation, prt is the same as p*r*t. So we multiply p, r and t to get prt.

This can be thought of as p*(rt). To isolate p, we undo the multiplication done to the variable p. We will divide both sides by rt to get

i = prt

i = p*(rt)

i/(rt) = p*(rt)/(rt) ... dividing both sides by rt

i/(rt) = p

p = i/(rt)

5 0
3 years ago
There are 221 students on a field trip.
Liula [17]

Answer:

The answer is 31

Step-by-step explanation:

221 divided by 6 is 36-5=31

This is correct because if you divide 221 by 6 you get 36 the subtract 5 from 36 and get 31. To check this answer just do 31+5=36 times 6 which is 216 and 221 minus 5 is 216:)

8 0
3 years ago
Which best summarizes Pythagorean Theorem
aleksklad [387]

Answer:

A^2 + B^2 = C^2

Step-by-step explanation:

The applies for right triangle where C is the hypotenuse.

3 0
3 years ago
What is the wavelength of a 320 Hz sound traveling 330 m/s?
maw [93]

Answer:1.03125 meter

Step-by-step explanation:

Velocity =330 meter per second

Frequency =320 Hertz

wavelength=velocity ➗ frequency

Wavelength=330 ➗ 320

Wavelength=1.03125 meter

8 0
3 years ago
Line AH, line GF, or line CF
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Answer:

AB and EF are the ones parallel to HG

Step-by-step explanation:


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