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2 years ago

11

3. Consider the expression 4x + 15.

1 answer:

Softa [21]2 years ago

8 0

Example of a real world problem:
Chris is starting a handmade card business. In the beginning, he starts off with 15 cards and makes 4 new cards every week.

The variable (x) would represent the number of weeks that passed.

Example 2:
Sam decides to start saving up money to buy a video game. She starts off with 15 dollars and gets an allowance of 4 dollars every day.

The variable (x) would represent the number of days that pass.

To come up with your own equation, most times, x represents a unit of time. The zero value (the number that isn’t being multiplied by a variable) in the equation always represents your starting value, and the coefficient of the variable represents how much of something is being gained or added after a duration of time.

I hope this helps!

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Della by tree seedling that was 2 1/4 feet tall during the first year it grew 1 1/6 ft after two years it was 5 ft tall how much

jasenka [17]

<h2>Greetings!</h2>

Answer:

$\frac{19}{12}$ feet

Step-by-step explanation:

First, we need to find the height after one year:

2.25 + 1 1/6 = $\frac{41}{12}$

Now to find the amount in the second year, we can subtract the above amount from 5:

5 - $\frac{41}{12}$ = $\frac{19}{12}$

So in the second year it grew $\frac{19}{12}$ feet

<h2>Hope this helps!</h2>

8 0

3 years ago

How would you symplify 5 and the square root of 90?<br><br> Please show steps

myrzilka [38]

First you have to find the square root of 90 which is about 9.5
now multiply, divide, add, or subtract 5 from 9.5 to get your answer.

8 0

3 years ago

A farmer estimated that there were 25 gallons of water left in a tank. If this is an underestimate by 16%, how much water was ac

djyliett [7]

Answer:

The actual water in the tank is 29.76 gallons.

Step-by-step explanation:

It is given that the farmer estimated amount of water is 25 gallons.

It is also given that he underestimate the water in tank by 16%.

Let the actual water in tank be x.

$(1-\frac{16}{100})x=25$

$(\frac{100-16}{100})x=25$

$84x=25\times 100$

$x=\frac{2500}{84}$

$x=29.7619$

$x\approx 29.76$

Therefore the actual water in the tank is 29.76 gallons.

8 0

3 years ago

Two out of every 5 muffins are blueberry in one muffin variety pack. how many muffins are blueberry muffins if there are a total

love history [14]

Since the ratio is 2/5 then for 25 (which is five 5s) there will be 2 × 5 which is 10
Answer: there are 10 bluemuffins

3 0

3 years ago

2 ( n + 3 ) + 5 ( 2n + 4 ) = 62 *<br> 2 points<br> 3<br> 5<br> 7<br> -8

Sophie [7]

Answer:

2 ( n + 3 ) + 5 ( 2n + 4 ) = 62 *

2 points

3

5

7

-8

Step-by-step explanation:

n+3)+5.2=(n+3)+5=n+82n+4=62=n=29v

8 0

3 years ago