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Ahat [919]
2 years ago
6

The sum of twice a number and 3 times the same number as 40. What is the number?

Mathematics
2 answers:
Gnom [1K]2 years ago
6 0

Answer:

Let the number be x

According to Question ,

2x + 3x = 40

5x = 40

x = 8

therefore , the number is 8

hope that helps uh...☺

Sergio [31]2 years ago
3 0
Let the number be x
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4 0
3 years ago
A blueprint for a house shows the height of the house to be 3 3/8 inches. The actual house is 21 1/3 feet tall. What is the unit
Amanda [17]
6.32ft per inch (rounded to the hundredth place).

You can get this number by dividing the total number of feet by the total number of inches 
6 0
3 years ago
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
Alisiya [41]
The answer is <span>2(–4y + 13) – 3y = –29

Step 1: Express </span><span>x from the second equation
Step 2: Substitute x into the first equation:

The system of equations is:
</span><span>2x – 3y = –29 
x + 4y = 13

Step 1: 
</span>The second equation is:    x + 4y = 13
Rearrange it to get x:         x = - 4y + 13

Step 2:
The first equation is:          2x – 3y = –29 
The second equation is:    x = - 4y + 13
Substitute x from the second equation into the first one:
2(-4y + 13) - 3y = -29

Therefore, the second choice is correct.
5 0
3 years ago
Write the equation 12 − y = 2x − 5 in slope-intercept form. What are the slope and y-intercept? A. y=2x−17,m=2, y-intercept (0,−
MrRissso [65]

Answer:

D

Step-by-step explanation:

12-y=2x-5

+5        +5  ( add 5 to both sides)

17-y=2x

-17    -17  (Subtract 17 to get y by itself)

-y=2x-17

divide by -1 because y cant be negative

y=-2x+17

m=-2 and y-intercept= 17

I hope thats right :)  

8 0
2 years ago
What's the slope of y=20+15x
Ivenika [448]
The slope of this would be 15
5 0
3 years ago
Read 2 more answers
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