gernawhitaker23 gernawhitaker23

27-10-2020
Mathematics

contestada

y=3x-4
y= 10x - 7
Round to the nearest hundredth.

Respuesta :

LazyBun LazyBun

27-10-2020

Answer: See below

Explanation:

y = 3x - 4
y = 10x - 7

Solve by substitution:

3x - 4 = 10x - 7
3x - 10x = -7 + 4
-7x = -3
x = -3/-7
x = 3/7
x = 0.42

Substitute x value to find y:

y = 10(0.42) - 7
y = 4.2 - 7
y = -2.8

Therefore, x = 0.42 and y = -2.8

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