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Lilit [14]
3 years ago
12

Help me again and ty.

Mathematics
1 answer:
prisoha [69]3 years ago
6 0
I believe the answer is c
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What is the solution to y=-2x+7 and y=5x-7
Alexandra [31]

Answer:

x-2,y= 3, it can also be written as (2 ,3)

Step-by-step explanation:

2x-7y=5x-7-2x-7=5x-75x+2x=

7+77x=14x=2y=5x-7=5*2-7=10-..

4 0
2 years ago
Maria bought seven boxes a week later half of all her boxes were destroyed in a fire there are only 22 boxes left with how many
OlgaM077 [116]

Answer:

Step-by-step explanation:

she started off with 44 boxes

8 0
3 years ago
Help me plz thank you
nevsk [136]

Answer:

1) Distance=Speed*time

90=(x+1)*(x)+(2x+5)(x-1)

90=x^2+x+2x^2-2x+5x-5

3x^2+4x-95=0

2) 3x^2+4x-95=0. Using quadratic formula, we get

x=(-4±sqrt(16-4*3*(-95)<u>)</u>)/6, x=5 or - 19/5 but since x also represents time, it can't be negative.

3) Total time take she took for the journey is x+x-1=2x-1=2*5-1=9 hours

4 0
3 years ago
Given the system of equations, what is the value of the system determinant?
weeeeeb [17]
2x + y = 8
x - y = 10
--------------add
3x = 18
x = 6

x - y = 10
6 - y = 10
-y = 10 - 6
-y = 4
y = -4

solution is : (6,-4)
6 0
3 years ago
Read 2 more answers
What's the answer to this questions?
tia_tia [17]
I believe the answer is 2 :) .
6 0
3 years ago
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