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4 years ago

2x+3y=0 and x+2y=-1 Solve by substitution

Mathematics

1 answer:

Elena-2011 [213]4 years ago

6 0

Hope this makes sense!

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The table below shows the number of barrels of oil produced per day by some countries.

gogolik [260]

Answer:

Simple,the answer would be 93200

Step-by-step explanation:

You move your decimal point backwards by the power e.g 10^6 u move backwards 6 times

5 0

3 years ago

Y = x + 5<br> 2x + y = 17

larisa [96]

Answer:

y = x + 5: x=y−5

2x + y = 17 : x=-1/2y+17/2

Step-by-step explanation:

I do not exactly know what you were asking but I just answered the questions, if that is not what you were looking for tell me so I can try and edit my answer

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3 years ago

Here is a riddle:

lilavasa [31]

Answer:

The system of inequalities that represents this situation will be:

$f + s < 10$

$f - s > 3$

Step-by-step explanation:

Let 'f' represent the first number

Let 's' represent the second number.

Given that the sum of the two numbers is less than 10. As 'less than' can be represented by '<'.

so the inequality would be: f + s < 10

Given that If we subtract the second number from the first, the difference is greater than 3. As 'greater than' can be represented by '>'.

so the inequality would be: f-s > 3

Thus, the system of inequalities that represents this situation will be:

$f + s < 10$

$f - s > 3$

8 0

3 years ago

The ratio of the length of an airplane wing to its width is 9 to 1. If the length of a wing is 34.7 meters, how wide must it be?

KIM [24]

The answer is 3.85555556 because the ratio is 9:1 the length 34.7 so that means the length will be 9 times the width so you divide.

6 0

3 years ago

Find the quadratic equation given that the roots are 4 and 7

artcher [175]

Answer: {−4,7} is y=x2−3x−28 y = x 2 - 3 x - 28 .

Step-by-step explanation: so all ways do y and x first

6 0

2 years ago