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3 years ago

PLEASE HELP x+4y=6 x+y=3 Solve for x and y

Mathematics

2 answers:

slamgirl [31]3 years ago

7 0

I don't understand the y after the 4... but would it be x=2 y=1 ?

ohaa [14]3 years ago

5 0

X is 2 and y is 1 ;)

You know 4 is really close to six, so even if you put y as two, 4x2 is 8 and you can't add anything to get to six, so you can automatically tell it is 1.
Knowing that, you can easily solve X.
Ask yourself "What do you add to 4 to get 6?) and you get 2.
In the next problem, 1+2 is 3, which proves your answer.

Hope this helped

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A department store sold 51 51 shirts one day. All short-sleeved shirts cost $14.00 $ 14.00 each and all long-sleeved shirts cost

Dmitrij [34]

Answer:

28 short-sleeved shirts were sold and 23 long-sleeved shirts were sold.

Step-by-step explanation:

We can solve this question by a system of equations.

I am going to say that:

x is the number of short-sleeved shirts sold.

y is the number of long-sleeved shirts sold.

A department store sold 51 shirts one day.

This means that $x + y = 51$

All short-sleeved shirts cost $14.00 each and all long-sleeved shirts cost $23.00 each. Total receipts for the day were $921.00.

This means that

$14x + 23y = 921$

How many of each kind of shirt were sold?

We have to solve the system of equations.

$x + y = 51$

$x = 51 - y$

--------------

$14x + 23y = 921$

$14(51 - y) + 23y = 921$

$714 - 14y + 23y = 921$

$9y = 207$

$y = \frac{207}{9}$

$y = 23$

--------

$x = 51 - y = 51 - 23 = 28$

28 short-sleeved shirts were sold and 23 long-sleeved shirts were sold.

7 0

3 years ago

What is the time elaspsed between 11:00 and 2:15

hichkok12 [17]

From 11 am to 2:15 pm it is 3 hrs and 15 min

4 0

3 years ago

Read 2 more answers

2. Solve 3 + 4x > –5 for x.<br> a. x -1.75<br> c. x > -2

trasher [3.6K]

Answer:

x>-2

Step-by-step explanation:

Simplify both sides of the inequality.

4x+3>−5

Subtract 3 from both sides.

4x+3−3>−5−3

4x>−8

Divide both sides by 4.

4x/4>-8/4

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3 years ago

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Help! Does anyone know which answer is correct?

guapka [62]

What you do is solve all of the equations using the coordinates given for l and m

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4 years ago

What is bigger .7 or 7/9?

GalinKa [24]

7/9 is greater than .7 because when you turn 7/9 into a decimal you get 0.7 repeating decimal, which you can round to get 0.8 which is greater than 0.7. So furthermore, you can conclude that 7/9 is bigger than 0.7 which is your answer :)
Hope it helps!
Mark as brainliest answer!

5 0

4 years ago