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stiv31 [10]
3 years ago
10

How many solutions does the system have? 3x + y = 8 2 + 2y = 8

Mathematics
1 answer:
REY [17]3 years ago
3 0

Answer:

x=2,y=2

Step-by-step explanation:

This question is a simultaneous equation

So let's solve

3x+y=8...(1)

2x+2y=8....(2)

Multiply (1) by 2

6x+2y=16...(3)

Substrate (2) From (3)

4x=8

Let's make x the subject of formula by dividing both sides by 4

x=2

So let's substitute the value of x into (1)

3x+y=8

3(2)+y=8

6+y=8

y=8-6

y=2

Therefore x is 2,y is 2

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Which expression gives the best estimate of 45 percent of 76?
jonny [76]

Answer:

<h2>1/2 of 80</h2>

Step-by-step explanation:

45% is close to 1/2 (50%) and 76 is close to 80, so 1/2 of 80 is the best answer.

1/2 of 80 is 40

45% of 76 is 76 x 0.45 is 34.2

6 0
3 years ago
Leon charged $75 at an interest rate of 12.5% how much will Leon have to pay after one month if he makes no payments
OlgaM077 [116]

So basically, let's look at the given. In the problem, Leon is charged a fee of 75. The interest rate would be 12.5 % if he doesn't pay his due amount. So in order to get the total amount that he has to pay if he doesn't pay on time, you just need to multiply 75 with 12.5% or simply 0.125. If you do this, you will get 9.375. After that, you add 9.375 to the principal amount which is 75 and you will get 84.375. So Leon has to now pay a total of 84.375.

I hope this HELP! :)

4 0
3 years ago
HELP ROUND 479065.389037 TO THE NEAREST THOUSAND
exis [7]
ROUND 479065.389037 TO THE NEAREST  THOUSAND = <span>479,000</span>
8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Clarge%7B%20%5Cboxed%7B%20%5Cbold%7B%20%5Cpmb%7BNonsense%20%3D%20Reported%21%21%7D%7D%7D%7D"
GarryVolchara [31]
  • y=-9x-11

Compare to y=mx+b

  • m=-9=slope

Parallel lines have equal slopes

Now

equation in point slope form

  • y-6=-9(x+4)
  • y-6=-9x-36
  • y=-9x-30
5 0
2 years ago
A local pizza shop has a membership program for frequent buyers. The membership costs $15 per month and members get a discounted
MrMuchimi

Answer:

$34

$26.5

Step-by-step explanation:

Membership cost per month = $25

Price of a slice of pizza for members= $1.50

How much would Aaliyah have

to pay the pizza shop if she bought 6 slices of pizza this month

Total cost of Aaliyah on 6 slices of pizza = membership cost per month + prices of 6 discounted pizza

= $25 + $1.50(6)

= $25 + $9

= $34

What would be the

monthly cost for a slices of pizza

Monthly cost of Aaliyah a slices of pizza = membership cost per month + price of 1 discounted pizza

= $25 + $1.5

= $26.5

7 0
2 years ago
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