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2 years ago

What is the justification for step 1

Mathematics

1 answer:

solniwko [45]2 years ago

6 0

Answer:

what are you talking about??????

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It’s system of equations but it needs to be solved in substitution if you can answer I’ll give five stars

Aloiza [94]

2x - 3(x-1) = -1
2x -3x + 3 = -1
-1x + 3 = -1
-1x = -4
x = 4

y = 4 - 1
y = 3

8 0

2 years ago

Read 2 more answers

If 9^(1 - x) =27^Y and x-y equals to -11 / 2 find the value of x + y

777dan777 [17]

Answer:

x = -2.9

y = 2.6

x+y = -2.9+2.6

= -0.3

8 0

2 years ago

Select all the correct ratios.

erastova [34]

Answer:

48:42,16:14,56:49 is the write

answer......

6 0

2 years ago

Help help help help help just need answer

kirza4 [7]

Answer:

25 miles

Step-by-step explanation:

2 inches represents 10 miles ( divide both parts by 2 )

1 inch represents 5 miles , then

5 inches represents 5 × 5 = 25 miles

5 0

1 year ago

Help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Airida [17]

Answer: 19.6 feet

Step-by-step explanation:

Using the Pythagorean theorem,

$x^2 +(x+6)^2 =48^2\\\\x^2 +x^2 +12x+36=2304\\\\2x^2 +12x-2268=0\\\\x^2 +6x-1134=0\\\\x=\frac{-6 \pm \sqrt{6^2 -4(1)(-1134)}}{2(1)}\\\\x \approx 30.8 \text{ } (x > 0)\\\\\implies x+(x+6) \approx 67.6\\\\\therefore (x+(x+6))-48 \approx 19.6$

4 0

8 months ago