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aleksandrvk [35]

3 years ago

12

Lily took 57 seconds to walk from classroom to library.If the distance between the classroom and library was 38m, at what averag

e speed did Lily walk in m/min?

1 answer:

sp2606 [1]3 years ago

4 0

Answer: 40

Step-by-step explanation:

First find what 57 seconds in minutes is, 57 seconds equals 0.95 minutes

And then do distance/time=speed

38/0.95=40 m/min

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Nimfa-mama [501]

Answer:

500 divided by 80 equals 6.25. 6.25 divided by 100 equals 0.0625

Step-by-step explanation:

500 divided by 80 equals 6.25. 6.25 divided by 100 equals 0.0625

6 0

3 years ago

Given: f(x) = 3x2 + 2x – 1

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Answer:

84

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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5 0

3 years ago

Read 2 more answers

Write 6 11/13 as an improper fraction.

hoa [83]

Answer:

89/13

Step-by-step explanation:

Step 1:

Multiply the denominator by the whole number

13 × 6 = 78

Step 2

Add the answer from Step 1 to the numerator

78 + 11 = 89

Step 3

Write answer from Step 2 over the denominator

89/13

3 0

3 years ago

F(x) = -7x2 + 9x - 15 and g(x) = -12x2 – 15x + 7

djyliett [7]

Answer:

${5x}^{2} + 6x = - 8$

Step-by-step explanation:

This question is asking you to insert two equations, f(x) and g(x), into the equation g(x) - f(x). This will lead to the equation below.

${ - 12x}^{2} - 15x + 7 - ({ - 7)x}^{2} + 9x - 15$

Now we can solve for the equation.

${ - 5x}^{2} - 6x - 8 = 0 \\ {5x}^{2} + 6x = - 8$

3 0

2 years ago