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2 years ago

Solve this system by substitution. y = -6 y = -3x - 12 *Remember to write your answer as a coordinate point(x, y)

Mathematics

1 answer:

kirza4 [7]2 years ago

8 0

-6 = -3x -12
6 = -3x
x = -2

y = -3(-2) -12
y = 6 -12
y = -6
(-2,-6)

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Question 2

irakobra [83]

Answer :

2 hours 36 minutes

Step-by-step explanation :

speed = distance / time

Distance = 150 km

time = 1 hour 30 minutes

= 1,5 hours

$speed = \frac{150 \: km}{1.5 \: hours}$

$speed = 100 \: km/hour$

<h3>Answer :</h3>

How long will it take the car to cover a distance of 260 km at the same average speed ?

Time = Distance/Speed

= 260 km / 100 km/hour

= 2,6 hours

____________________

to convert hours to hours and minutes we can multiply by 60.

2, 6 hours

2 hours and 0,6 hours

0,6 = 3/5

3/5 × 60

60 ÷ 5 × 3

36 minutes

2,6 hours = 2 hours 36 minutes

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1 year ago

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german

The answer is vertex

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3 years ago

The accompanying diagram show a cross-section of a rectangular pyramid. The cross sectional area is 36in and is 3 inches from th

LiRa [457]

The area of the rectangular base is the amount of space on the rectangular base

The area of the rectangular base is 60 square inches

<h3>How to determine the area of the rectangular base?</h3>

The question is incomplete; as the diagram is not given.

So, I will apply the concept of similar shapes to determine the area of the rectangular base

To determine the area of the rectangular base, we make use of the following equivalent ratio:

Ratio = Height : Area

This gives

3 : 36 = 5 : Area

Express as fraction

36/3 = Area/5

Evaluate the quotient

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Multiply both sides by 5

Area = 60

Hence, the area of the rectangular base is 60 square inches

Read more about areas at:

brainly.com/question/24487155

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1 year ago

A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the sma

Anit [1.1K]

The first equation gives:

y = 2 * (x + 3) >>> y = 2x + 6

2x - y = -6

The second sentence gives:

y = 5 + 3x >>> 3x - y = -5

The answer is (A), the first choice.

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2 years ago

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How many degrees are in a straight angle

Misha Larkins [42]

Answer:

180 degrees

Step-by-step explanation:

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3 years ago

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Solve this system by substitution. y = -6 y = -3x - 12 *Remember to write your answer as a coordinate point(x, y)​

Solve this system by substitution. y = -6 y = -3x - 12 *Remember to write your answer as a coordinate point(x, y)