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mafiozo [28]
3 years ago
7

I need help first answer gets brainliest

Mathematics
2 answers:
VMariaS [17]3 years ago
6 0

To find which fractions are equal to each other, we must simplify or multiply to both denominator and numerator:

          \frac{2}{6} =\frac{1*2}{3*2} =\frac{1}{3}*\frac{2}{2}=\frac{1}{3}*1=   \frac{1}{3} \\\\\frac{8}{1}=8\\ \\\frac{2}{4} =\frac{1*2}{2*2} =\frac{1}{2}*\frac{2}{2} =\frac{1}{2} *1= \frac{1}{2} =\frac{1}{2}*1 =\frac{1}{2}*\frac{4}{4} =\frac{1*4}{2*4}=\frac{4}{8}   \\\\\frac{2}{8} =\frac{1*2}{4*2}=\frac{1}{4}*\frac{2}{2} =\frac{1}{4} *1  =\frac{1}{4} \\\\\frac{4}{4} =1

Hope that helps!

Helen [10]3 years ago
4 0

Answer:

2/6 = 1/3

8/1 = 8

2/4 = 4/8

2/8 = 1/4

4/4 = 1

Step-by-step explanation:

2/2 = 1 and 6/2 = 3 so that would make the equivalent fraction 1/3

for 8/1 it is the same as just 8

2*2 = 4 and 4*2 = 8 so that would make the equivalent fraction 4/8

and 2/8 is 1/4

and 4/4 is just 1  

PLEASE RATE!! I hope this helps!!

If you have any questions let me know

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Question 1: Classify the system of equations and identify the number of solutions. 7x + 3y = 10 3y = 9 − 7x Answers: consistent,
Vladimir [108]

Answer:

1. The equations is inconsistent and has no solution

2. The equations is consistent and has no solution

3. A pen costs $1.50 and a notebook costs $2.00

Step-by-step explanation:

Solving 7x + 3y = 10 and 3y = 9 - 7x

7x + 3y = 10 --- Equation 1

3y = 9 - 7x --- Equation 2

Add 7x to both sides in equation 2

7x + 3y = 9 - 7x + 7x

7x + 3y = 9  --- Equation 3

Subtract equation 3 from 1

(7x + 3y = 10) - (7x + 3y = 9)

7x - 7x + 3y - 3y = 10 - 9

0 + 0 = 1

0 \neq 1

The equations is inconsistent and has no solution

Solving 3x + y = 4 and  12x + 4y = 16

3x + y = 4 -- Equation 1

12x + 4y = 16 ---- Equation 2

Make y the subject of formula in equation 1

y = 4 - 3x

Substitute 4 - 3x for y in equation 2

12x + 4(4 - 3x) = 16

12x + 16 - 12x = 16

Collect Like Terms

12x - 12x = 16 - 16

0 = 0

The equations is consistent and has no solution

3. Solving <em>John and Harry</em>

Given;

<em>Represent Pen with P and Notes with N</em>

John: 3P + 8N = 20.5

Harry: 4P + 5N = 16.00

Required

Find P and N

Make P the subject of formula in equation 2

4P = 16 - 5N

P = \frac{16 - 5N}{4}

Substitute P = \frac{16 - 5N}{4} in equation 1

3P + 8N = 20.5

3(\frac{16 - 5N}{4}) + 8N = 20.5

Open the bracket

\frac{48 - 15N}{4} + 8N = 20.5

Take LCM

\frac{48 - 15N + 32N}{4} = 20.5

\frac{48 + 17N}{4} = 20.5

Multiply both sides by 4

4 * \frac{48 + 17N}{4} = 20.5 * 4

48 + 17N = 82

Subtract 48 from both sides

48 - 48 + 17N = 82 - 48

17N = 82 - 48

17N = 34

Divide both sides by 17

17N/17 = 34/17

N = 34/17

N = 2

Substitute 2 for N in P = \frac{16 - 5N}{4}

P = \frac{16 - 5 * 2}{4}

P = \frac{16 - 10}{4}

P = \frac{6}{4}

P = 1.5

<em>Hence, a pen costs $1.50 and a notebook costs $2.00</em>

5 0
3 years ago
If anyone knows where I can find the answers for this please let me know unit 3 homework 5 for geometry it’s due in 6 hours PLZ
expeople1 [14]

Answer:

  1. y = 3x + 4
  2. y = \frac{2}{5}x - 1
  3. y = 4
  4. undefined

Step-by-step explanation:

Slope-intercept form is written in the form: <em>y </em>=<em> mx </em>+<em> b</em>. Leave the y and x as they are. The m is the slope of the graph. The b is the y-intercept of the graph. For number three, the slope of a horizontal line is 0. For number four, the slope of a vertical line is undefined.

Hope it helps! (I'm not sure if you need the answers to the bottom questions).

3 0
3 years ago
3/5 = 24/40 =?/60. what comes at the question mark?​
kherson [118]

Answer:

? = 36

Step-by-step explanation:

<em>Knowing that 3/5 and 24/40 is equal</em>

<em>Therefore we can either use:</em>

<em>3/5 = ?/60 or 24/40 = ?/60</em>

<em>I will use 3/5 = ?/60</em>

<em>Let ? = x</em>

<em>Hence we have</em>

<em>3/5 = x/60</em>

<em>Multiply both sides by 10</em>

<em>6 = x/6</em>

<em>Multiply both sides by 6</em>

<em>x = 36</em>

<em>Therefore, the question mark = 36</em>

<em />

<em>Let's check the answer by Simplifying the fraction:</em>

<em>3/5 = 36/60</em>

<em>3/5 is in already simplify</em>

<em>36/60 simplify = 3/5</em>

<em />

<em>3/5 = 3/5</em>

<em>Thus, the question mark = 36</em>

<em />

<em />

<u><em>[RevyBreeze]</em></u>

<em />

<em />

3 0
2 years ago
Read 2 more answers
If &lt;PQR is vertical to &lt;RQS and M&lt;RQS=36 degrees,what is the measure of &lt;PQR?
Firdavs [7]
Ahemm ahemmm, *clearing throat*,  vertical angles are just angles across from each other from a vertex point, so at the junction one is on one side and the other across the junction, and therefore equal.
 
Because the same segments is making them both, with the same opening.
6 0
4 years ago
The ratio of black bags to blue bags is 5to 3 if there are a total of 10 black bags ,then how many blue bags are there
LuckyWell [14K]

Answer:

6

Step-by-step explanation:

We can think of the 10 black bags as 2 sets of 5-black bags (10 divided into groups of 5; 10 / 5 ; is 2 groups/sets). So, we would also have two sets of 3 (3 x 2 = 6), or 6 bags.

5 : 3 = 10 : 6

(multiply both numbers by 2)

4 0
2 years ago
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