3 years ago

(A.5C) What is the value of x in the solution to the system of equations below?

Mathematics

1 answer:

Mariana [72]3 years ago

7 0

Answer:

x=4

Step-by-step explanation:

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How I do this?<br> 3x+4y=11<br> X-2y=-3

Amanda [17]

Answer:

$\huge\boxed{x=1,\ y=2\to(1,\ 2)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}3x+4y=11\\x-2y=-3&\text{multiply both sides by (-3)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}3x+4y=11\\-3x+6y=9\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\ \ \ \ 10y=20\qquad\text{divide both sides by 10}\\.\qquad\qquad\boxed{y=2}\\\\\text{subtitute it to the second equation:}\\x-2(2)=-3\\x-4=-3\qquad\text{add 4 to both sides}\\\boxed{x=1}$

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3 years ago

Lila bought a green poster that measured 36 inches by 24 inches and a red poster that measured 12 inches by 18 inches. If the po

kramer

36 × 24 = 864 square inches. 864 sq in × $0.05 = $43.20. The green poster cost $43.20

12 × 18 = 216 square inches. 216 sq in × $0.05 = $10.80. The red poster cost $10.80

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3 years ago

A tank is filled with water at a rate of 2.4 liters per minute. At this rate, how

TEA [102]

Answer: 35 minutes

Step-by-step explanation:

84 liters divided by 2.4 liters per minute

84/2.4=35 minutes

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3 years ago

PLEASE ANSWER RIGHT AWAY

BabaBlast [244]

ANSWER

The explicit formula is :

$a_n = 8+ 3(n - 1)$

EXPLANATION

The given sequence is

8,11,14,17,20,23,26,...

The first term is

$a_1=8$

The common difference is

d=11-8

d=3

The explicit formula is given by:

$a_n = a_1 + d(n - 1)$

We substitute the values to get,

$a_n = 8+ 3(n - 1)$

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3 years ago

What is 2/3 divided by 5?<br> Show your work

Zolol [24]

Answer:

2/15

Step-by-step explanation:

2/3 / 5/1 =

2/3 x 1/5 = 2/15

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3 years ago

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