Can you please help?

Mathematics

1 answer:

xz_007 [3.2K]2 years ago

4 0

Answer:

6.5 km per minute

Step-by-step explanation:

To calculate the average speed, you add the speed of one trip to the speed of the other then divide by 2.

The first trip was a speed of 80km/10 minutes or 8km per 1 minute.

The second trip was a speed of 100km/20 minutes or 5km per 1 minute.

To find the average, add and divide by 2:

$\frac{8+5}{2}=\frac{13}{2}=6.5$ km per minute

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user100 [1]

Given:$75
25 hours

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2 years ago

Plot the points A(7,1), B(-2, 3), C(1, -7) on the coordinate axes below. State the

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A B

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vectors

AB = DC

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2 years ago

If 3x+54+(65 × 32)+ 902- (43/12) =y, then what is y?

IceJOKER [234]

Answer:

We cannot solve without a value for x. The simplified form is $3x+\frac{36,389}{12} =y$

Step-by-step explanation:

If the equation is $3x+54+(65)(32)+902-\frac{43}{12}=y$ then we cannot solve it until we know the value of x. We can simplify it using order of operations such as PEMDAS.

$3x+54+(65)(32)+902-\frac{43}{12}=y \\3x+54+2,080+902-\frac{43}{12}=y \\3x+3,036-\frac{43}{12}=y \\3x+\frac{36,432}{12} -\frac{43}{12} =y\\3x+\frac{36,389}{12} =y$