3 years ago

Solve simultaneously 3x + 4y = 2 and 4x - y = 9

Mathematics

1 answer:

Contact [7]3 years ago

3 0

Answer:

x=2

y= -1

Step-by-step explanation:

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PLEASE HELP ASAP- WILL MARK BRAINLIEST

babymother [125]

V1 = V2 + 18

V1 =

$3 \times 6 \times x$

V2 =

$\frac{4 \times 7 \times x}{2}$

Do the maths...

$3 \times 6 \times x = \frac{4 \times 7 \times x}{2} + 18$

$18x = 14x + 18$

$4x = 18$

$x = 4.5$

The volume of the rectangular prism is 81 cubic feet.

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4 years ago

Sam left his school at 3:05. He walked at a speed of 3.2 mph. 15 minutes later, Al started running after him, and he caught up w

KonstantinChe [14]

Total time taken by Sam before Al caught up with him = 15+10 = 25 minutes

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Al takes 10 minutes to cover that distance. Therefore,
Al's speed = Distance/time = (4/3)/(10/60) = (4/3)*(60/10) = 8 mph

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3 years ago

A car company tested a sports car on a road with different inclines. The test driver tested the car by driving a distance of x m

lara [203]

Answer:

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Step-by-step explanation:

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3 years ago

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pentagon [3]

Answer:

a) B

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3 years ago

Im thinking of a number 1-100 who ever is closer will get brainiest

fomenos

Answer:

i guess 87

Step-by-step explanation:

am i right?

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3 years ago