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tatuchka [14]
3 years ago
9

Cual es la sustitución de x/2+3=7

Mathematics
1 answer:
Maslowich3 years ago
5 0

Answer:

conio

Step-by-step explanation:

You might be interested in
Find two consecutive odd integers such that their product is 71 more than 3 times their sum.
SVETLANKA909090 [29]
Let's put this in terms of a system of equations. Let's call the numbers x and y, with x being the larger integer and y the smaller one. Since they are consecutive odd integers, we know that:
x = y + 2
The constraint is:
xy= 3(x+y) + 71         Simplify
xy = 3x + 3y + 71       Plug in (y+2) for x:
(y + 2) y = 3(y + 2) + 3y + 71         Simplify
y² + 2y = 3y + 6 + 3y + 71              Subtract 6y from  both sides, add 71+6
y² -4y = 77
y² - 4y - 77 = 0
Factor:
(y - 11) (y+7) = 0
y = 11 or y=-7

When y = 11, x = 13, since x = y+2
Plug in to make sure:
xy = 3(x+y) + 71
11*13 = 3 (11 + 13) + 71
143 = 3 (24) + 71
143 = 72 + 71
143 = 143               
Our values work! 
Answer: 11, 13
4 0
3 years ago
Here Is My Last Question I Took A Snip Of 30 Points
coldgirl [10]

Answer:

u did change it

7 0
3 years ago
Can someone help me find the volume of this?
GalinKa [24]
To find the volume of any cube you need to know the length, width and height. The formula to find the volume multiplies the length by the width by the height. The good news for a cube is that the measure of each of these dimensions is exactly the same. Therefore, you can multiply the length of any side three times.
5 0
3 years ago
A ships triangular signal flag has a base of 8 inches and an area of 64 square inches. What is the height of the signal flag
Firlakuza [10]
A = (1/2)bh
64 = (1/2)(8)h
16 = h
The height is 16 inches
7 0
3 years ago
An airplane is flying from New York City to Los Angeles the distance it travels in Miles D is related to the time in seconds T b
tatiyna

Answer:

It takes 85 seconds to go 12.75 miles

Step-by-step explanation:

We are given

An airplane is flying from New York City to Los Angeles

the distance it travels in Miles D is related to the time in seconds T by the equation

d=0.15T

we are given to find time when distance is 12.75 miles

so, we can set d=12.75

and then we can solve for T

12.75=0.15T

We can divide both sides by 0.15

T=\frac{12.75}{0.15}

T=85

So,

It takes 85 seconds to go 12.75 miles

6 0
3 years ago
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