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Mandarinka [93]
3 years ago
13

Find the sum. 7x + 15x=

Mathematics
2 answers:
erastovalidia [21]3 years ago
6 0

Answer: 22x

Step-by-step explanation: +7x and +15x are called terms and the numbers in front of the variables, +7 and +15 are called coefficients.

Because the variables, x and x, are identical, the two terms in this problem are called like terms. Like terms can be added together by simply adding their coefficients. So in this problem, since 7 + 15 is 22, 7x + 15x is simply 22x.

BaLLatris [955]3 years ago
4 0

Answer:

7x + 15x= 21x

Step-by-step explanation:

7x + 15x

= (7 + 15)x

= 22x

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John caught 24 trout and bass while on a fishing trip. The average weight of a trout was 2.5 pounds, and the average weight of a
aleksklad [387]

Answer:

24

Step-by-step explanation:

3 0
3 years ago
What is the value of n?<br><br> –2n – 16 = 4n + 8
Anit [1.1K]

Answer:

-4=n

Step-by-step explanation:

-24=6n

-24/6=n

-4=n

7 0
3 years ago
Lmk asap please cuz I need it by tonight
OLEGan [10]

Answer: 20

Step-by-step explanation:

2x^2 + 4y=

2(2)^2 + 4(3)=

2(4)+12=

8+12=20

7 0
2 years ago
three boxes under my stairs contain apples or pears are both each box contains the same number of pieces of fruit the first box
Brrunno [24]

There are 16 fruits in each of the boxes found under the stairs.

<h3>What is an equation?</h3>

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the number of pears, hence:

Number of fruit in first box = 12 + (1/9)x

Number of fruit in second box = number of fruit in third box = (8/9)x ÷ 2 = (4/9)x

Therefore:

12 + (1/9)x = (4/9)x

x = 36

First box = second box = third box = (4/9) * 36 = 16

There are 16 fruits in each of the boxes found under the stairs.

Find out more on equation at: brainly.com/question/2972832

4 0
2 years ago
Assume that P(E) = 0.471 and P(F) = 0.595. If E and F are independent, find P(E and F)
dsp73

The value of the probability P(E and F) is 0.2802

<h3>Independent probability</h3>

Events are known to be independent if the occurrence of one does not affect the other.

Given the following parameters

P (E) =0.471

P(F) = 0.595

If E and F are independent, then;

P(E and F) = P(E)P(F)

P(E and F)  = 0.471 * 0.595
P(E and F)  = 0.2802

Hence the value of the probability P(E and F) is 0.2802

Learn more on independent events here: brainly.com/question/1374659

#SPJ1

8 0
2 years ago
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