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natali 33 [55]
3 years ago
6

Solve the value of y for the given values of x: 4x = 3y - 7; x= 4,5,6

Mathematics
2 answers:
julia-pushkina [17]3 years ago
5 0
Thhe easiest way would be to solve for y first
4x=3y-7
add 7
4x+7=3y
divide both sides by 3
(4x+7)/3=y

try each
x=4
(4(4)+7)/3=y
(16+7)/3=y
(23)/3=y
7 and 2/3=y
(4,7.66666)


x=5
(4(5)+7)/3=y
(20+7)/3=y
(27)/3=y
9=y
(5,9)

x=6
(4(6)+7)/3=y
(24+7)/3=y
(31)/3=y
10 and 1/3=y
(6,10.333)



(4,7.66666)
(5,9)
(6,10.333)

when x=4, y=7 and 2/3
when x=5, y=9
when x=6, y=10 and 1/3



AlekseyPX3 years ago
4 0
Rearranging the equation gives y = (4x + 7) / 3. Directly substitute the values of x given to the equation.

A. 4 :   y = ((4)(4) + 7) / 3 = 23/3
B. 5 :   y = ((4)(5) + 7) / 3 = 9
C. 6 :   y = ((4)(6) + 7) / 3 = 31/3
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The distance from Parrot Point Airport to the Ivy Cliffs is 178 miles at and angle of 7.1 degrees northeast. There is a wind blo
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Answer:

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We resolve the distance moved by the wind and plane into horizontal and vertical components. The direction moved horizontally by the plane is 178sin7.1 = 22 miles.

Since the wind is moving south east, it is at 45 south of east or a bearing of 135.

Since the wind speed is 30 mph and it takes 2 hours to complete the trip, the horizontal distance moved by the wind is vtcos135 = 30 × 2cos45 = 42.43 miles

Also, the vertical displacement moved by the wind is vtsin135 = -30 × 2 sin45 = -42.43 miles

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The total horizontal displacement of the plane is 22 miles + 42.43 miles = 62.43 miles

The total vertical displacement of the plane is 176.64 miles - 42.43 miles =   134.21 miles

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The direction of this displacement is thus

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= tan⁻¹(134.21/62.43)

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Answer:

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Step-by-step explanation:

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