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3 years ago

2x-3y=8 . How do I solve this ?

Mathematics

2 answers:

shepuryov [24]3 years ago

8 0

X equal what umber,and y equal what number?

Firdavs [7]3 years ago

3 0

If we're solving for x:
First we have to add 3y to both sides.
2x - 3y + 3y = 8 + 3y
2x = 3y + 8
Last, we divide both sides by 2.
2x/2 = 3y+8/2
Answer: x = 3/2y + 4

If we're solving for y:
First, we have to add -2x to both sides.
2x - 3y + -2x = 8 + -2x
Last, we divide both sides by -3.
-3y/-3 = -2x + 8/-3
Answer: y = 2/3x + -8/3

I hope this helps! :>

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The cost of renting a bicycle, y, for

Vilka [71]

Answer:

Step-by-step explanation:

1(10) + 12= 22

2(10) + 12= 32

etc.....

6 0

3 years ago

A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat

aivan3 [116]

The group rent 11 river rent tubes and 4 cooler tubes.

Step-by-step explanation:

Rent for river rent tube = $20

Rent for cooler tubes = $12.50

Total spent = $270

Total tubes rented = 15

Let,

x be the number of river rent tube.

y be the number of cooler tubes.

According to given statement;

x+y=15 Eqn 1

20x+12.50y=270 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=15)\\20x+20y=300\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(20x+20y)-(20x+12.50y)=300-270\\20x+20y-20x-12.50y=30\\7.50y=30$

Dividing both sides by 7.5

$\frac{7.5y}{7.5}=\frac{30}{7.5}\\y=4$

Putting y=4 in Eqn 1

$x+4=15\\x=15-4\\x=11$

The group rent 11 river rent tubes and 4 cooler tubes.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Consider the following system of equations

Vera_Pavlovna [14]

Hsisvskevwovewhsjsbaoaa

3 0

3 years ago

How do you do find a? And how can you tell if it is sin, cos, or tan?

xxMikexx [17]

30 60 90 triangle
ratio of short leg : hypo = x : 2x

given short leg x = 4 ft
so hypo a = 2x = 2 * 4 = 8

answer
a = 8 ft
----------------------------------------------
P.S.
if you need to do by using cos sin tan then
Cos (60) = Adj/Hypo = 4/a

a = 4/cos(60) as you know cos(60) = 1/2
so
a = 4 /(1/2 = 4 * 2/1 = 8

answer: a = 8 ft

6 0

3 years ago

Read 2 more answers

Is 3/4 proportional to 6/15

LiRa [457]

answer:

step-by-step explanation:

step one- cross multiply

3*15=4*6

step two- multiply

3*15=45 4*6=24

step three- simplify

45=24

45 and 24 aren't equal, therefore 3/4 and 6/15 are not proportional

good luck :)

i hope this helps

have a nice day !!

4 0

3 years ago