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3 years ago

PLEASE HELP IM STRUGGLING!!!

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

6 0

Answer:

10. 0.99
11. -60
12. 5.5

Step-by-step explanation:

<u>Use the slope formula:</u>

m = (y2 - y1)/(x2 - x1)

10.

m = (6.24 - 3.27)/(5 - 2) = 2.97/3 = 0.99

11.

m = (240 - 360)/(3 - 1) = -120/2 = -60

12.

m = (8.84 - 6.09)/(7 - 2) = 2.75/5 = 5.5

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mylen [45]

The cafeteria sold 41 corn chips and 80 potato chips.

Step-by-step explanation:

Let,

Corn chips = x

Potato chips = y

Price of corn chips = $0.80

Price of potato chips = $0.60

According to given statement;

x+y= 121 Eqn 1

0.80x+0.60y=80.80 Eqn 2

Multiplying Eqn 1 by 0.80

$0.80(x+y= 121)\\0.80x+0.80y=96.80\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(0.80x+0.80y)-(0.80x+0.60y)=96.80-80.80\\0.80x+0.80y-0.80x-0.60y=16\\0.20y=16$

Dividing both sides by 0.20

$\frac{0.20y}{0.20}=\frac{16}{0.20}\\y=80$

Putting y=80 in Eqn 1

$x+80=121\\x=121-80\\x=41$

The cafeteria sold 41 corn chips and 80 potato chips.

Keywords: linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

Find the diffrence between 7/8 and 1/2 and find the sum of 1/5 and 2/3

trapecia [35]

Answer:

3/8 and 13/15

Step-by-step explanation:

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3 years ago

My brother is wondering what 100÷1,000,000 equals.

alexandr402 [8]

Answer:

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Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Monty invested $8600 in a savings account with a yearly interest rate of 5% for 12 years. How much simple interest did he earn?

Korvikt [17]

SI=P*R*T
=8600*0.05*12
=5160

hope this helps!!

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3 years ago

Read 2 more answers

Please help I need an answer ASAP !

Mila [183]

Well, 4+1=5, so we need to first find:
$150 \div 5 = 30$
Ivan gets
$30 \times 4 = 120$
Tanya gets
$30 \times 1 = 30$
$120 - 30 = \boxed{90}$

6 0

3 years ago

PLEASE HELP IM STRUGGLING!!!​

PLEASE HELP IM STRUGGLING!!!