3 years ago

Work out the value of 3x + 2y when x=4 and y=-5

2 answers:

Kruka [31]3 years ago

5 0

3x + 2y =

3*4 + 2*-5=

12 + -10 = 2

4 0

Just substitute the equation with the given

The given are
x = 4 and y = -5
the equation is
3x + 2y
3 (4) + 2 (-5) = 12 - 10 = 2

You might be interested in

aalyn [17]

The answer is 3. I hope this helps!

8 0

4 years ago

soldi70 [24.7K]

we know that having similar triangles so the ratio of sides,area and volume are same.

$s/s=s^2/s^2$

we know that $s^2$ will be the area of triangle.

$s^2/s^2=75/12$

so $s/s=\sqrt{75/12}$

so the ratio of the perimeter of two triangles will be

$(s+s+s)/(s+s+s)=(\sqrt{75} +\sqrt{75} +\sqrt{75} )/(\sqrt{12}+\sqrt{12} +\sqrt{12} )$

ratio of the perimeter= $\sqrt{225} /\sqrt{36}$

8 0

3 years ago

Tems11 [23]

The equation whit the largest outcome is 5*103=515

7 0

3 years ago

Arada [10]

Answer:

which class do you read now?

5 0

3 years ago

oksian1 [2.3K]

225 miles / 45 miles/hr = 5hr

3 0

3 years ago