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Zielflug [23.3K]
2 years ago
10

I really need help!! (can you show step by step guide? (​

Mathematics
1 answer:
alexdok [17]2 years ago
4 0

Answer:

Look below

Step-by-step explanation:

(i) Sharon is not correct because in the first bag, the proportion is of red counters to yellow counters.

In the second bag, the proportion is of red counters to all the counters in the bag. Therefore the proportions are not the same.

(ii) Let x be the total amount of counters (in each bag)...

Then the amount of red counters would be

\frac{1}{5} x

And the amount of yellow counters would be

\frac{4}{5} x

For the second bag, the amount of red counters would be

\frac{1}{4} x

And the amount of yellow counters would be

\frac{3}{4} x

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Pachacha [2.7K]
You have to multiply 7 3/4 to 9.

First, turn 7 3/4 to an improper fraction which is 31/4.
Next, you multiply 31/4 to 9/1(same thing as 9) across from each other.
Then, you get the answer 279/4(31 x 9 = 279 ;4 x 1 = 4; 279/4).
Last divide 279 to 4 and get 67.75( .75 = 3/4 ; 69 3/4).
 
7 0
3 years ago
Kiera's dance class starts at 4:30 p.m. and ends at 6:15 p.m. How long is her dance class?
qwelly [4]
From 4 PM to 6 PM is 2 hours, and it's 15 minutes after 6, so her dance class is 2 hours and 15 minutes long.
8 0
2 years ago
Read 2 more answers
All numbers less than 7 and greater than 7
mrs_skeptik [129]

Step-by-step explanation:

123456 less then 7

unlimited greater then 7

4 0
2 years ago
Help 9th grade algebra
Naya [18.7K]

Answer:

Step-by-step explanation:

1. true

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7 0
3 years ago
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Solve 7x+3y=8 and 4x-y=-9 simultaneously
Jobisdone [24]

Answer: x = -1 and y = 5

Step-by-step explanation:

7x + 3y = 8 ........................... equation 1

4x - y = - 9 ............................ equation 2

Solving the simultaneous linear equation by substitution method , make y the subject of the formula from equation 2 , we have

y = 4x + 9 ............................. equation 3

substitute y = 4x + 9 into equation 1 , we have;

7x + 3 ( 4x + 9 ) = 8

7x + 12x + 27 = 8

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subtract 27 from both sides

19x = -19

divide through by 19

x = -1

substitute x = -1 into equation 3 , we have

y = 4 ( -1) + 9

y = -4 + 9

y = 5

Therefore :

x = -1 and y = 5

5 0
3 years ago
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