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Lady_Fox [76]
3 years ago
13

Find the sum of (x+5) and (2x+3)

Mathematics
1 answer:
Komok [63]3 years ago
6 0

Answer:

3x + 8

Step-by-step explanation:

x + 5 + 2x + 3   If you put the x's together and the numbers without x's, you will see what is going on much easier.

x + 2x + 5 + 3 = (1 + 2)x + 5 + 3 = 3x + 8

Don't go any  further.


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A population of rabbits in a lab, p(x), can be modeled by the function p(x) = 20(1.014)x , where x represents the number of days
Nitella [24]

Answer:

20 = initial population of the rabbits

1.014 = growth rate of the rabbits

the average rate of change from day 50 to day 100 is 0.8

Step-by-step explanation:

A population of rabbits in a lab, p(x), can be modeled by the function

p(x) = 20(1.014)^x

This model is exponential. Where 20 = initial population of the rabbits

1.014 = growth rate of the rabbits with 1.4% increase rate of the rabbits

To find the average rate of change from day 50 to day 100,

find the population p(50) and p(100). Subtract them and divide by 100 - 50 = 50. 

p(50) = 20(1.014)50 = 40.08... 

p(100) = 20(1.014)100 = 80.32... 

(80.32 - 40.08) / (100 - 50) = 40.24/50 = 0.8048. which is approximately 0.8 to the nearest tenth. 

The rate of change is 0.8. 

7 0
3 years ago
Leo bought 6 chew toys for his new puppy each chew toy cost $4 how much did Leo spend for the chew toys
Nikolay [14]
6*4 equals 24 bam easy mat
8 0
3 years ago
Read 2 more answers
If 7 cans of spinach soup cost $49, how much do 10 cans cost?
Leni [432]
Take 49 and divide it by 7 and you get 7. 7 times 10 is 70. Your answer is $70.
4 0
3 years ago
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In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store.
sergiy2304 [10]

Answer:

a) Which item’s price was reduced by more, and by how many dollars more was it reduced?

The DVD player's price was reduced more by $3.82 than the stereo tuner's price.

b) Round all dollar values to the nearest cent.

Rounding $3.82 dollars to the nearest cents

$1 = 100 cents

$3.82 =

3.82 × 100 cents

= 382 cents

The DVD player's price was reduced by 382 cents more than the stereo tuner's price

Step-by-step explanation:

Lets day the original price of the DVD player was $100

We are told the price was marked down to 36%

36% of $100 = $36

$100 - $36 = $64

We are told the DVD cost $41.60 after the markdown.

Original cost of DVD =

$41.60/$64 × 100 = $65

Lets the original price of the Stereo player was $100

We are told the price was marked down to 22%

22% of $100 = $22

$100 - $22 = $78

We are told the DVD cost $69.42 after the markdown.

Original cost of Stereo =

$69.42/$78 × 100 = $89

DVD = $65 - $41.60 = $23.40 less 

Stereo = $89 - 69.42 = $19.58 less

Difference between the DVD and the Stereo is

$23.40 - $19.58 = $3.82

Therefore,the DVD player's price was reduced by $3.82 more than the stereo tuner's price

Rounding $3.82 dollars to the nearest cents

$1 = 100 cents

$3.82 =

3.82 × 100 cents

= 382 cents

8 0
3 years ago
Read 2 more answers
Zoey read a novel in 30 days she made it a habit to read 13 pages everyday for the first 20 days. if in the last 10 days she rea
Elden [556K]
Answer:320

Explanation:

20 days times 13 pages= 260pages
10 days times 6 pages = 60pages

Total for the 30 days:
260+60= 320 pages total
7 0
2 years ago
Read 2 more answers
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