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german
3 years ago
9

Tao uses elimination to solve the following system of linear equations.

Mathematics
2 answers:
olasank [31]3 years ago
8 0

Answer:

(0,4) or A

Step-by-step explanation:

Edge 2021

Wewaii [24]3 years ago
5 0

Given:

The system of equation is:

-2x+4y=16

2x+2y=8

To find:

The solution of the given system of equations.

Solution:

We have,

-2x+4y=16              ...(i)

2x+2y=8                ...(ii)

Add (i) and (ii) to eliminate the variable x.

6y=24

y=\dfrac{24}{6}

y=4

Putting y=4 in (ii), we get

2x+2(4)=8

2x+8=8

2x=8-8

2x=0

Divide both sides by 2.

x=0

Therefore, the solution of given system of equations is (0,4). Hence, the correct option is A.

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3 0
3 years ago
SOLVE FOR M <br><br> −4m+7=−5
Masteriza [31]

Answer:

m=3

Step-by-step explanation:

-4m+7= -5

Combine like terms.Put +7 on other side.

-4m= -5-7

-4m= -12

It's -4 times m = -12 right ?

So the answer is m=3 because m= -12/-4

6 0
2 years ago
An ivy contains 5 mg of drug per ml and the patient needs to receive 100mg per hour what is the infusion in ml/hr
SashulF [63]

Answer:

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7 0
3 years ago
Sommer wants to buy a new car. She currently drives a car that gets 24 miles per gallon. She is contemplating buying a car that
frozen [14]

answer

$962.50

set up equation

first, we want to find out how many gallons of gas she'll save a year

x1 = gallons for old car

x2 = gallons for new car

gallons saved = x1 - x2 since she uses more gallons with the old car with a lower miles per gallon

then, find how much she saves on gas by multiply the price per gallon (3.85) by gallons saved

price saved = gallons saved * price

price saved = (x1 - x2) * 3.85

gallons with old car

to find the number of gallons, we divide the number of miles (15000) by miles per gallon (24 for the old car)

x1 = 15000 / 24

x1 = 625

gallons with new car

use the same process as with the old car, but with 40 miles per gallon instead

x2 = 15000 / 40

x2 = 375

plug in values

price saved = (x1 - x2) * 3.85

price saved = (625 - 375) * 3.85

price saved = 250 * 3.85

price saved = $962.50

3 0
3 years ago
From 16 bagels to 0 bagels
KengaRu [80]
There was 16 bagels, and now there is 0 bagels. So what you do is subtract 16 from 16 to get 0.
7 0
3 years ago
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