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eduard
3 years ago
8

Evaluate the expression 2x+ y when x = 3. y=1.​

Mathematics
2 answers:
Mkey [24]3 years ago
8 0

Answer:

\boxed {\tt 7}

Step-by-step explanation:

We are given the expression

2x+y

and asked to evaluate when x=3 and y=1. Therefore, we must substitute 3 in for x and 1 in for y.

2(3)+1

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction.

Multiply 2 and 3.

6+1

Add 1 and 6.

7

The expression 2x+y evaluated at x=3 and y=1 is equal to 7.

Katen [24]3 years ago
7 0

Answer:

2x+y+x=3+y=1

2x+x+y+y+3=1

2x+2y+3=1

2x+2y+3-3=1-3

2x+2y=-2

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yuradex [85]

When you go into this problem, you want to figure out your marble ammount to 50 so in this case we will say C for color and 50 for the total ammount of marbles.

We know 15 are pink, 8 are black, 2 are green, 18 are clear, and 7 are striped

15P/50

8B/50

2G/50

18C/50

7S/50 for a total of 50 marbles

Now we use the chart to decide our awnsers  

A. We know our propability of drawing a green and clear is 20/50 which if we simplify is a 2/5 ratio. If We put this in perspective 2/5 is rare and is unlikley to even.

B. We know a striped marble is 18/50 or 1.8/5 ratio which is mainly unlikely

C. We have 23/50 marbles that are black and pink, our propability is about 2.3/5 and gives us an even chance to get one of these

D. We know we have 33/50 marbles that are pink and clear and gives us a 3.3/5 chance of getting one of  these and gives us an even to likely chance of getting one of these.

E. If we have a total of 17 marbles in these 3 colors, we have a 1.7/5 chance of getting one of these and is probably impossible to unlikey.

4 0
2 years ago
George usually takes 1.5 hours to mow his neighbor’s grass and trim the bushes. Today he has only 0.75 of the usual amount of ti
g100num [7]
Anyhoot, you can multiply 1.5 by 0.75 to find the time. And you can multiply by 60 to get 67.5 minutes, aka, 1.125 hours
4 0
3 years ago
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8a - 7b + 2a - 4b Please include the steps on how to solve it.
Troyanec [42]

Answer:

10a-11b is ur answer

Step-by-step explanation:

combine like terms

8a+2a=10a

-7b-4b=-11b

(always make sure to but in alphabetic order)

10a-11b

hope this helps

6 0
3 years ago
A firm has a beta of 1.3 and a debt-to-equity ratio of .4. The market rate of return is 11.6
Citrus2011 [14]

Beta= 1.3

Debt to equity ratio= 0.4

Market rate of return= 11.6%

= 11.6/100

= 0.116

Tax rate= 32%

= 32/100

= 0.32

Risk free rate=  3.3%

= 3.3/100

= 0.033

Pretax cost of debt= 7.2%

= 7.2/100

= 0.072

The firm's WACC can be calacluated as follows

RS= 0.033+1.3(0.116-0.033)

= 0.033+1.3(0.083)

= 0.033+0.1079

= 0.1409

WACC= (1/1.4)(0.1409)+(2/1.4) (0.072)(1-0.32)

= (0.7142)(0.1409) + (1.4285)(0.072)(0.68)

= 0.1006+0.0699

= 0.1705(100)

= 17.05%

Hence the firm's WACC is 17.05%

6 0
2 years ago
Evaluate j/4 when j=12
lilavasa [31]

Answer:

3

Step-by-step explanation:

\frac{j}{4} =  \frac{12}{4} = 3

4*3=12

3*4=12

12/4=3

12/3=4

Hope this helps ;) ❤❤❤

8 0
3 years ago
Read 2 more answers
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