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2 years ago

Help m.e please please

Mathematics

1 answer:

creativ13 [48]2 years ago

8 0

Answer:

(-3, -4)

Step-by-step explanation:

The solution is where the two lines intersect. Therefore, the x-coordinate is -3, and the y-coordinate is -4.

Another way to solve this would be to set the to equations equal to each other, so 2x+2 = -4. Therefore, 2x = -6, and x = -3. And from the second equation, y = -4.

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A tourist first walked 17km with a speed of v km/h. Then he hiked 12 km uphill with the speed that was 2 km/hour less than his o

ExtremeBDS [4]

Answer: $t=\frac{17}{v}+\frac{12}{v-2}$

Step-by-step explanation:

Given: A tourist first walked 17km with a speed of v km/h.

Since $Speed=\frac{distance}{time}$

therefore, $Time=\frac{distance}{speed}$

Let $t_1$ be the time he walked with speed v.

then $t_1=\frac{17}{v}$

Also he hiked 12 km uphill with the speed that was 2 km/hour less than his original speed.

Let $t_2$ be the time he hiked 12 km,

Then $t_2=\frac{12}{v-2}$

The total time for the whole trip is given by:-

$t=t_1+t_2=$

Substitute the values of $t_1$ and $t_2$ in the equation, we get

$t=\frac{17}{v}+\frac{12}{v-2}$

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3 years ago

Solve the linear equations below by using:

bija089 [108]

A. Y= -7
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2 years ago

Are theese rational<br><br><br>-3/8 +3/5

nekit [7.7K]

Answer:

The sum is rational.

Step-by-step explanation:

-3/8 is a rational number (the ratio of 2 integers)

3/5 is a rational number (the ratio of 2 integers)

When you add 2 rational numbers, you get a rational number.

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3 years ago

How much square units of 50 units

Alborosie

Answer:

7.07106781187

Step-by-step explanation:

if its just asking $\sqrt50$

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3 years ago

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I hope this helps you

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3 years ago