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arlik [135]
2 years ago
5

What is the speed of a car that traveled a total of 90 km in 2 hours

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
6 0

Answer:

45 km per hour

Step-by-step explanation:

assuming the car maintains the same speed for the entire travel the speed would be 45 km per hour

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5a+4b/c=2 [solve for a]
bagirrra123 [75]

plz mark me brainliesttttt

3 0
3 years ago
Mila graphs the point A
melamori03 [73]
Answers:
B. <span>The x-coordinate of point A is 5.
</span>E. <span>Point A is on the x-axis.
</span>
Explanation:
Any point drawn on the coordinates has the general notation of (x,y).
The given point is (5,0). This means that:
The x-coordinate of the point is 5
The y-coordinate of the point is 0

Now, let's check the place of this point.
The x-coordinate of the point is 5. This means that we will move 5 points to the right of the origin on the x-axis
The y-coordinate of the point is 0. This means that we will not move along the y-axis which means that the point stays on the x-axis.

Now, comparing the deduced results with the given choices, we will find that the correct choices are B and E

Hope this helps :)
6 0
2 years ago
Solve x^2 + x - 12 = 0
bogdanovich [222]

Answer:

x₁ = -4

x₂ = 3

Step-by-step explanation:

x²+ x + 12 = 0

x = {-1±√((1²)-(4*1*-12))} / (2*1)

x = {-1±√(1+48)} / 2

x = {-1±√49} / 2

x = {-1±7} / 2

x₁ = {-1-7} / 2 = -8/2 = -4

x₂ = {-1+7} / 2 = 6/2 = 3

Check:

x₁

-4² + (-4) - 12 = 0

16 - 4 - 12 = 0

x₂

3² + 3 - 12 = 0

9 + 3 - 12 = 0

6 0
1 year ago
Larry bought a used boat for $2400 and sold it for 2000 two years later what was the percent of decrease
guajiro [1.7K]
It pretty much would be 400
3 0
2 years ago
Find the value of x.<br><br> Brainlest for anyone who answers and explains it!
sergejj [24]

Answer:

x=-2

Step-by-step explanation:

Since it is an equilateral triangle (note the little lines across the legs of corner 2) the other angle must be 69° as well.

That leaves 180-69-69 = 42 for ∠2.

So x + 44 = 42 => x = 42-44 = -2.

3 0
3 years ago
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