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IgorLugansk [536]
3 years ago
6

Express this ratio in simplest form: 4:20​

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Answer: 1:5

Step-by-step explanation:

i think you can just divide by 4

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4x + y = 7<br>3x + 2y = 9​
Diano4ka-milaya [45]

Answer:

x = 1

y = 3

Step-by-step explanation:

<h2><em><u>Substitution Method</u></em><em><u>:</u></em></h2>

Step 1:

Name The Equation

4x + y = 7 ...(1)

3x + 2y = 9 ...(2)

Step 2:

From Equation (1) we get,

4x = 7 - y

i.e.,

x = 7 - y/4

Step 3:

Substitute the value of <em><u>x = 7 - y/4</u></em> in equation (2)

i.e.,

3(7 - y/4) + 2y = 9

21 - 3y/4 + 2y = 9

21 - 3y + 8y/4 = 9

21 - 3y + 8y = 9 * 4

21 + 5y = 36

5y = 36 - 21

5y = 15

y = 15/5

<em><u>y = 3</u></em>

Step 4:

Substitute the value of <em><u>y = 3</u></em> in equation (1)

4x + y = 7

i.e.,

4x + (3) = 7

4x + 3 = 7

4x = 7 - 4

4x = 4

x = 4/4

<em><u>x = 1</u></em>

<h2><em><u>Verification</u></em><em><u>:</u></em><em><u> </u></em></h2>

4x + y = 7 i.e., <em>4(1) + (3) = 7</em>

3x + 2y = 9 i.e., <em><u>3(1) + 2(3) = 9</u></em>

3 0
2 years ago
A video rental store has 6,000 movies. One Friday, 3/5 of the movies were rented. How many movies were rented that Friday night?
AleksAgata [21]
6000/ 5 = 1200 x 3 =3600 movies
8 0
3 years ago
Read 2 more answers
Write the phrase as a variable expression. Use x to represent "a number."
navik [9.2K]

Answer:

a/9 - 4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is one way the Pennsylvania colony was able to maintain peace with the Native American people?
myrzilka [38]
B. Hshejsiaiajsgaiajbehsiabsvahajakajbsjs
5 0
2 years ago
Penny reads 14 pages in 1/3 hour. What is the unit rate for pages per​ hour? For hours per​ page?
Ne4ueva [31]

Answer: your

Pages per hour: 42

Hours per page: 1/42 of a hour

Step-by-step explanation:

14 x 3 = 42

1 hour divided by 42 pages = 1/42 of an hour per page

5 0
3 years ago
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