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Serga [27]
3 years ago
8

Hayley begins solving this problem by combining like terms. 3x + 5x = 10 Which problem requires the same strategy (combining lik

e terms)? A) 5x=20 B) 3(x + 5) = 20 C) x ÷ 4= 30 D) 3x - 2x = 10
Mathematics
2 answers:
Tamiku [17]3 years ago
6 0
D) 3x - 2x = 10 is the answer to this equation 
Alexxx [7]3 years ago
4 0

Answer:

D) 3x - 2x = 10

Explanation:

To combine like terms, you add or subtract terms that have the same variables and exponents.  In the problem we are given, 3x and 5x are like terms; we would add them together and then continue solving.

In choice A, there are no like terms to combine.

In choice B, we would use the distributive property; after that, there are no like terms to combine.

In choice C, we would cancel the 4; there are no like terms to combine.

Choice D has two like terms, 3x and 2x.  We would subtract them and then continue solving.

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A prism has total surface area of 360 m2 and volume of 60 m². If the length, width,
Karolina [17]

Answer:

480

Step-by-step explanation:

I did the test and this is what it said in the review.

3 0
3 years ago
Solve by substitution. Show each step of your work.
zaharov [31]

5x + y = 15

y = -5x + 15

Substituting y= -5x+15 from first equation into second equation:

3x + 2y = 16

3x + 2·(-5x + 15) = 16

3x - 10x + 30 = 16

-7x + 30 = 16

7x = 30 - 16 = 14

x = 2

Substituting x=2 into the first equation:

5x + y = 15

5(2) + y = 15

10 + y = 15

y = 15 - 10

y = 5

So your final answers are x=2 and y=5.

3 0
2 years ago
Read 2 more answers
Determine whether the random variable is discrete or continuous. In each​ case, state the possible values of the random variable
Slav-nsk [51]

Answer:

a) Discrete Variable

b) Continuous Variable

Step-by-step explanation:

We are given the following in the question:

Discrete and Continuous:

  • Discrete data are the data whose value can be expressed in whole number. They cannot take all the values within an interval.
  • Discrete variables are usually counted than measured.
  • Continuous variable can be expressed in the form of decimals. They can take any value within an interval.
  • Continuous variables are usually measured than counted.

​(a) The number of free dash throw attempts before the first shot is made. ​

Since the number of shots made will always be expressed in whole numbers and the number of shots made will counted and not measured. Thus, number of free dash throw attempts before the first shot is made. is a discrete variable.

(b) The distance a baseball travels in the air after being hit.

The distance is a continuous variable as its value can be expressed in decimals. Also distance is always measured and not counted. Thus, distance a baseball travels in the air after being hit is a continuous variable.

4 0
3 years ago
Please answer in detail
sammy [17]

Answer:

y=5x-1 I think because the snd option doesn't make sense but you should try y =5x-1

8 0
2 years ago
Find the equation of the line passing through the points A(3,2) and B(6,3)
icang [17]

Answer:

y = \frac{1}{3} x+1

Step-by-step explanation:

m = m = \frac{change in y}{change in x} \\m = \frac{3 - (2)}{6 - (3)}\\m = \frac{1}{3} \\Find the value of b using the equation of a line \\y = mx+b\\y =( \frac{1}{3} )x + b\\2 =( \frac{1}{3} ) * (3) + b\\cancel common factor\\1 + b = 2\\b = 1\\y = \frac{1}{3} x + 1

5 0
3 years ago
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