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2 years ago

What is a Unit Rate please give an example, and then how do you use the unit rate in the real world?

Mathematics

1 answer:

slava [35]2 years ago

8 0

Answer:

It's when rates are expressed as quantities.

Step-by-step explanation:

An example would be miles per hour (mph). People use these to determine the distance they will go in an amount of time and to judge safe speed.

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Pls answer i need answer fast

puteri [66]

Answer:

-24

Step-by-step explanation:

Given expression:

3z (2y - 4)²

z = -2 and y = 3

To solve this problem, simply substitute:

3z (2y - 4)² = 3(-2){2(3) - 4}²

= -6(6-4)²

= -6 (2)²

= -6 x 4

= -24

3 0

3 years ago

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A/b + c/b=? Simmmmmpppppllllliiiifffyyy

liubo4ka [24]

Answer:

\frac{A+c}{b}

Step-by-step explanation:

\frac{A}{b}+\frac{c}{b}

3 0

2 years ago

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The rational number 5 3/7 is equal to <br><br><br> is equal to

Andrei [34K]

Answer:

38/7 is = to 5 3/7

Step-by-step explanation:

7 0

2 years ago

Let f(x) = 5x ^ 2 - x + 1 and g(x) = - 3x . Evaluate the composition (fg)(1)

nlexa [21]

F(x) = 5(-3x) ^2 - (-3x) + 1
f(x) = -8x ^2 + 3x + 1
f(x) = -8x ^3 + 3x

5 0

2 years ago

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Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 40% chan

azamat

Answer:

There are a 25% probability that Christine fails the course.

Step-by-step explanation:

We have these following probabilities:

A 50% probability that Christine finds a tutor.

With a tutor, she has a 10% probability of failling.

A 50% probability that Christine does not find a tutor.

Without a tutor, she has a 40% probability of failing.

Probability that she fails:

10% of 50%(fail with a tutor) plus 40% of 50%(fail without a tutor). So

$P = 0.1*0.5 + 0.4*0.5 = 0.25$

There are a 25% probability that Christine fails the course.

6 0

3 years ago