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3 years ago

Solve this simultaneous equation using subsitution 5x-4y=-1 2x+y=10

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

3 0

Answer:

HIVNRDHGFHEHGDUOWHEDWUGUPEJKGODRFHYEHFUJDJBVCN SUFCEKGGUFVEUVFGVDBCUEGYYHDYGWEGYDCBEOGE

Step-by-step explanation:

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When you subtract them you get the answer 57.99

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3 years ago

a cell phone company charges $80 per month for unlimited talk, text, and data. write an expression to determine the amount you h

Lunna [17]

Answer:

80x

Step-by-step explanation:

If you pay 80 a month then to find the total you have paid after any number of months you would multiply amount times time which in this case is 80

a constant is the a number on its own so in this case there would be none

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2 years ago

ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.

fomenos

Answer:

C. The graph of G(x) is the graph of F(x) flipped over the y-axis and compressed vertically.

Step-by-step explanation:

The negative in front of the 2 made the function flip over the y-axis. While the 2, compressed the function a little, making it so the function touched 2, vertically.

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2 years ago

The basketball boosters are selling school t-shirts for 20 dollars and pants for 45 dollars. Last week they sold 100 items and c

lana66690 [7]

He sold 76 shirts and 24 pants.

Step-by-step explanation:

Given,

Cost of one t-shirt = $20

Cost of one pants = $45

Total items sold = 100

Total sales = 2600

Let,

x be the number of t-shirts

y be the number of pants

According to given statement;

x+y=100 Eqn 1

20x+45y=2600 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=100)\\20x+20y=2000\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(20x+45y)-(20x+20y)=2600-2000\\20x+45y-20x-20y=600\\25y=600$

Dividing both sides by 25

$\frac{25y}{25}=\frac{600}{25}\\y=24$

Putting in Eqn 1

$x+24=100\\x=100-24\\x=76$

He sold 76 shirts and 24 pants.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

Sandra is opening a savings account which compounds interest quarterly. Her banker gave her the following function to find the a

anygoal [31]

A ..... Because .....

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3 years ago