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aleksandr82 [10.1K]
3 years ago
15

7x + y = 15 x = y+ 1

Mathematics
1 answer:
vodka [1.7K]3 years ago
6 0

Answer:

download mathspace tbh that will help you more then anyone on here can

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What's The Answer? Good Luck!
ra1l [238]
I guess b it should be
6 0
3 years ago
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Someone please help with A, B and C?
Sergeu [11.5K]
A.)

3×4=12; 12×4= 48; 48×2= 96; 96+1= 97

B.)

3×4=12; 12+4=16; 16×2= 32; 32+3=35

C.)

3×4=12; 12+4=16; 16×2= 32; 32+1=33

The answer is B
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3 years ago
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The sum of two numbers is 9. And the sum of their reciprocals is 1/2.find the numbers
Musya8 [376]
Set up a system of equations:

x + y = 9
1/x +1/y = 1/2

The easiest way to solve would be substitution.
x + y = 9 can be solved for y:

y = 9 - x

Then plug this into the second equation and solve for x:

1/x + 1/(9-x) = 1/2
(9-x) + x = x(9-x)/2
9 = (9x-x²)2
18 = 9x - x²
x² - 9x + 18 = 0
(x-6)(x-3) = 0
x = 6, 3

You can check your answer by plugging the two numbers back into both of the equations:

6 + 3 = 9
1/6 + 1/3 = 1/2

The two numbers are 6 and 3.
7 0
3 years ago
What is the rate of change for the data in the table?
salantis [7]

Answer:

C

Step-by-step explanation:

Trust Bro

3 0
3 years ago
Anchara drops a penny from a height of 60 feet above the ground. The equation h=-16t^2 + 60 models the penbys height h i feet as
weeeeeb [17]

Answer:

t = 1.94 seconds

Step-by-step explanation:

we have to solve the following polynomial equation:

-16t² + 60 = 0

16t² = 60

t² = 60/16 = 3.75

t = √3.75 = 1.936491673 seconds

the equation also has another possible answer = -1.936491673 seconds, but since time cannot be negative, we have to dismiss that option

7 0
3 years ago
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