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seraphim [82]
3 years ago
5

Two more than a certain number is 15 less than the product of ⅞ and the number.

Mathematics
1 answer:
brilliants [131]3 years ago
4 0

Answer:

let the number = x

two more than the number = ( x + 2 )  

product of the number and ⅞ = ⅞x

if you add 15 to ( x + 2 ) the result will ⅞x

( x + 2 ) + 15 = ⅞x

8x + 16 +  120 = 7x

x = -136

Step-by-step explanation:

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Use the elimination method to solve the system of equations. Choose the correct ordered pair<br>​
UkoKoshka [18]

Answer:

Answer is B

Step-by-step explanation:

12x - y = 25 \\ 9x + y = 17 \\ x =  \frac{17 - y}{9}  \\ 12( \frac{17 - y}{9} ) - y = 25 \\

\frac{204}{9}  -  \frac{12}{9} y - y = 25 \\  \frac{204}{9}  -  \frac{21y}{9}  = 25 \\  -  \frac{21y}{9}  = 25 -  \frac{204}{9}  \\  -  \frac{21y}{9} =  2.33 \\ - 21y =  20.997 \\ y =  - 0.99

y =  - 1 \\ x =  \frac{17 - y}{9}  \\ x =  \frac{17 -  - 1}{9}  =  \frac{18}{9}   \\ x = 2

5 0
3 years ago
Helpp me pleasee ╹◡╹
SashulF [63]

Answer:

It would be 4:6

Step-by-step explanation:

2*2=4

3*2=6

they both multiply by 2

hopefully that makes sense.

6 0
3 years ago
Read 2 more answers
What is 2x-3=4(x-5)? And also what is 2x squared=50?
Ierofanga [76]
2x - 3 = 4(x - 5)
2x - 3 = 4x - 20
4x - 2x = 20 - 3
2x = 17
x = 8 1/2

2x² = 50
x² = 25
x = \pm√25
x = \pm5


6 0
4 years ago
Suppose that you are in a class of 33 students and it is assumed that approximately 15% of the population is left-handed. (give
AysviL [449]
15% of 33 =

= 15% * 33

= 0.15 * 33

= 4.950 students in that class are left-handed
3 0
4 years ago
One number is eight more than twice another. If their difference is 25, what is the larger number?
Vladimir79 [104]
You can set up an system of equations
x=2y+8
x-y=25

Substitute x in to the second equation
2y+8-y=25
y+8=25
y=17

Substitute the y back in to the first equation.
x=2(17)+8=42
7 0
3 years ago
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