2 years ago

a car reduced its speed in a ratio of 2 to 3 if the final speed was 90 km per hour then what was the original speed.

1 answer:

8 0

Answer:

Orginal Speed is 135

Step-by-step explanation:

The ratio of final speed: original speed is

$\frac{2}{3\\}$

We know that 90 km is it final speed so, we set up a proportion

$\frac{2}{3} =90/x$

$2x=270\\x=135$

Top answer · 16 votes

A. 9(4a-3)Distribute to each term inside parentheses.

Step-by-step explanation:

5 0

4 years ago

Elina [12.6K]

Answer:

- 16/5

Step-by-step explanation:

We have point with coordinates (-6, y) which lies ( or belong) on the graph of the straight line 5y=2x-4

When we replace x= -6 in given equation we get 5y = 2·(-6)-4 => 5y= -12-4 =>

5y= - 16 => y= - 16/5

Good luck!!!

8 0

3 years ago

Mashcka [7]

2x(x2-6x+3)

4x^3-12x^2+6x

3 0

2 years ago

Dmitry_Shevchenko [17]

.....................

5 0

3 years ago

Katen [24]

Answer:

[(-7)+9]+(+4)=9+[-7+4]

5 0

3 years ago

a car reduced its speed in a ratio of 2 to 3 if the final speed was 90 km per hour then what was the original speed.​