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3 years ago

Evaluate each expression if a=4, b=6 and c=3 5b-6c

Mathematics

2 answers:

Luden [163]3 years ago

7 0

Answer:

Step-by-step explanation:

replace the values.

5(6) - 6(3)

Using PEMDAS, you would do multiplication first.

30 - 18

Next, subtraction.

iragen [17]3 years ago

4 0

Answer:

it is 12

Step-by-step explanation:

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N f(x) = 2x , x=5. What is the value of the function?

wel

Plug the 5 into the x in the equation 2x. it should be 2(5) which equals 10.

6 0

3 years ago

Two years ago, Sally had 5,000 dogs in her dog shelter. Now she has 24,575 dogs. What is the

vodomira [7]

Two years ago, Sally had 5,000 dogs in her dog shelter. Now she has 24,575 dogs. The rate of change is 391.5 % increase

Solution:

Given that Two years ago, Sally had 5,000 dogs in her dog shelter

Now she has 24,575 dogs

To find: rate of change

A rate of change is a rate that describes how one quantity changes in relation to another quantity

<h3>Steps to follow:</h3>

First: work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number.

Then: divide the increase by the original number and multiply the answer by 100.

% change = Increase ÷ Original Number x 100

$\text {rate of change }=\frac{\text { new value }-\text {original value}}{\text {original value}} \times 100$

$\begin{array}{l}{\text { rate of change }=\frac{24,575-5000}{5000} \times 100} \\\\ {\text { rate of change }=\frac{19575}{5000} \times 100=391.5}\end{array}$

Thus the rate of change is 391.5 % increase

5 0

3 years ago

for every 4 miles Vanessa jogged, Cody jogged 3 miles. if Vanessa jogged 1 mile, how far would Cody have jogged

Ksju [112]

Alright here's the breakdown:

it said every 4 miles Vanessa jogged, Cody jogged 3 miles.

so

Vanessa jogged 1 mile

that means

Cody jogged .75 of a mile ( or 75% of 1 )

because

Cody will always jog 75% of how much Vanessa joged

so say that

Vanessa jogged 50 miles

all you do is take 75% of how much Vanessa jogged

and that should be how much Cody joged

hopes this helps!

7 0

3 years ago

Read 2 more answers

the angle of elevation of a jet plane from a point P on the ground is 60 degree after a flight of 15 seconds the angle of elevat

Nana76 [90]

Answer:

200m/s

Step-by-step explanation:

Please see the attached pictures for full solution.