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2 years ago

9

PLEASEEEEEEEEEEEEE ANSWER THIS FASTTTTTTTTTTTTTTTT

1 answer:

Dahasolnce [82]2 years ago

3 0

Answer:

B 2:1

Step-by-step explanation:

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2x+3y=9<br> 2x+y=7<br> simultaneous equation

Marat540 [252]

Answer:

x=3 and y=1

Step-by-step explanation:

subtract equation 2 from 1

then (2x+3y) -(2x+y) =9-7

2x-2x+3y-y =2

2y=2 therefore y=1

substitute y value in 2x+y=7

2x+1=7

2x=7-1

2x=6

x=3

3 0

3 years ago

The sum of the ages of ahsan and his mother is 61 years.The difference in their ages is 29 years.By forming a pair of simultaneo

Llana [10]

Answer:

(i). Ahsan's Present Age = 16

(ii). Age of Ahsan's Mother when ahsan is 21 years old = 50

Step-by-step explanation:

Let's say, x represents the age of ahsan.

y represents the age of his mother.

The system of equation from the date given is:

$\begin{bmatrix}x+y=61\\ -x+y=29\end{bmatrix}$

Solve them will get us:

$x=16,\:y=45$

Regards: Umer

8 0

3 years ago

What is a proportation??<br> I need help

Elden [556K]

Answer:

what probortation?

Step-by-step explanation:

5 0

2 years ago

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A bag contains white matarles and red marables,126 in total.The number of whit marables is 6 more than 5 than 5 times the number

denis-greek [22]

Answer:106

Step-by-step explanation:

Let number of white marbles be w

Let number of red marbles be r

w+r = 126---------1

w = 6 +5r-----------2

Put eqn 2 in eqn 1

6+ 5r + r = 126

6 + 6r = 126

6r = 120

r = 20

w = 6 +5r =6+100

= 106

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3 years ago

A members-only speaker series allows people to join for $18 and then pay $1 for every event attended.What is the maximum number

Pachacha [2.7K]

The answer is 4 events

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2 years ago

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