LindaCat78
31.03.2021 •
Mathematics
WILL GIVE BRAINLST
HAVE AN AMAZING DAY :)
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Ответ:
9.
10. y = 8x + 12
Step-by-step explanation:
9.
12x = 4(x + 2) + 20
12x = 4x + 8 + 20
12x - 4x = 28
8x = 28
x = 28/8
x = 7/2
10.
Slope (m) = 8
Line is crossing y-axis at (0, 12)
y-intercept (b) = 12
Equation of line in slope-intercept form is given as:
y = mx + b
Plugging the values of m and b in the above equation, we find:
y = 8x + 12
Ответ:
£56
Step-by-step explanation:
since 3kg costs £42
1kg will be £42/3 which will be equal to £14
4kg will cost £14×4 which will be £56