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mezya [45]
2 years ago
12

-3x + 5 ¾ + 12x - 2.25 if you answer this it is worth 100 points

Mathematics
2 answers:
Greeley [361]2 years ago
7 0

Answer: 9 x + 7 /2

Step-by-step explanation:

vazorg [7]2 years ago
3 0

Answer:

 8 + 9x

Step-by-step explanation:

This is an algebraic expression.  Our job here is to simplify it by combining like terms:  combine the x terms and then combine the constants:

-3x + 5 ¾ + 12x - 2.25, after combining the x terms, is

       5 ¾ +    9x - 2.25

Next, combine the constants.  It's easier to convert -2.25 to -2 1/4 and then

add this 2 1/4 to 5 3/4:  

             8 + 9x

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Rachel drives at a constant speed of 70 miles per hour.
marishachu [46]

The linear function that models Rachel's distance as a function of time is:

D(x) = (70 mi/h)*x

<h3>How to find a function that models Rachel's distance as a function of time?</h3>

Remember the relation between speed and distance:

Distance = Speed*Time.

Here we know that the speed of Rachel is 70 miles per hour, then if she drives for x hours, the distance traveled will be:

D(x) = (70 mi/h)*x

So we found a linear function that models Rachel's distance as a function of time.

If you want to learn more about linear functions:

brainly.com/question/1884491

#SPJ1

3 0
1 year ago
12 divided by -5/8<br> please help me:)
devlian [24]
-19.2

12/(-5/8) means 12*(-8/5)

12*8=96
96/5=19.2

don’t forget the negative sign

so

-19.2
5 0
2 years ago
Lucy has 4 inches of ribbon that she wants to cut into 6 equal sized pieces. What is true about the length of each piece of ribb
PolarNik [594]

Answer:

Option C

Step-by-step explanation:

Given

Total length of ribbon lucy has=4 inches

She wants to divide it into 6 equal sized pieces so  

Length of each piece=4/6

This can also be written as:

Length of each piece=4*(1/6 )

Now we will look at the options one by one:

For A, Each piece has 6/4 inches of ribbon.. This statement is not true as we have to divide 4 inches into 6 pieces so 4 is supposed to be in the numerator.

For B, breaking down 4/6 gives us 4*(1/6), so the statement is not true.

For C , as we can see that the expression is 4*(1/6), each piece will have 1/6 of inches of ribbon.

So option C is the correct answer..

6 0
2 years ago
Results from a survey conducted in a certain grocery store showed that 3 out of 5 people preferred crispy-flakes cereal to crunc
BabaBlast [244]

The number of people who how many most likely purchased crunchy-flakes cereal is 1000 customers.

<h3>How many most likely purchased crunchy-flakes cereal?</h3>

Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained within other value(s).

The first step is to determine the ratio of people who preferred crunchy-flakes cereal:

Ratio of people who preferred crunchy-flakes cereal : 5 - 3 = 2

Now, multiply the ratio of those who prefer crunchy-flakes cereal by the total number of customers: (2/5) x 2500 = 1000  customers.

To learn more about ratios, please check: brainly.com/question/25927869

#SPJ1

5 0
2 years ago
A birthday celebration meal is $46.80 including​ tax, but not the tip. find the total cost if a 10% tip is added to the cost of
irina1246 [14]
$51.48 should be the answer
8 0
3 years ago
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