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In-s [12.5K]
2 years ago
6

Which of these systems of equations would be best solved using the subtraction​ method?

Mathematics
2 answers:
algol132 years ago
5 0
I ain’t got a clue but good luck in life and make sure you stay in school and stay safe brb
Solnce55 [7]2 years ago
4 0

Answer:

diagram a has a slope of 4

diagram b has a slope of 1/4

diagram c has a slope of -1/4

Step-by-step explanation:

have a great day :D

You might be interested in
Sam and Mary collect marbles. “If you give me 5 marbles I’ll have twice as many as you.” said Sam to Mary.
ivann1987 [24]

Answer:

54 marbles

Step-by-step explanation:

The question is a word problem leading to a simultaneous equation

Let 'x' represent the initial number of marbles with Sam, and let 'y' represent the initial number of marbles with Mary,

If Mary gives Sam 5 marbles, we have;

x + 5 = 2 × (y - 5)...(1)

If Sam gives Mary 4 marbles, we get;

x - 4 = y + 4...(2)

From equation (1), we get;

x + 5 = 2 × (y - 5) = 2·y - 10

x = 2·y - 10 - 5 = 2·y - 15

x = 2·y - 15...(3)

From equation (2), we have;

x - 4 = y + 4

∴ x = y + 4 + 4 = y + 8

x = y + 8...(4)

Equating the two values of 'x' in equation (3), and equation (4), we get;

2·y - 15 = y + 8

2·y - y = 8 + 15 = 23

∴ y = 23

From equation (4), we get;

x = y + 8 = 23 + 8 = 31

x = 31

The total number of marbles they have altogether = x + y

However, x + y = 23 + 31 = 54

Therefore;

The total number of marbles they have altogether = 54 marbles.

7 0
3 years ago
mr. Smith is putting in a new floor in his bathroom he has already filled 25 ft.² of floor measuring 10‘ x 6‘ what percent has h
Salsk061 [2.6K]

Answer:

41.67%

Step-by-step explanation:

tiled \: percent =  \frac{25}{10 \times 6}  \times 100 \\ \\   =  \frac{2500}{60}  \\  \\  =  41.6666667\% \\  \\  \approx \: 41.67\%  \\

7 0
3 years ago
Define the term inflation
shtirl [24]

Answer:

the action of inflating something or the condition of being inflated.

or

a general increase in prices and fall in the purchasing value of money.

Hope this helps

Step-by-step explanation:


3 0
3 years ago
Solve these problems and show your work! ONLY HAND WRITTEN answers will be accepted! When
Dahasolnce [82]

For Kohl’s:

Purchase Price:

$60

Discount:

(60 x 25)/100 = $15.00

Final Price:

60 - 15.00 = $45.00

You would save $15.00 from Kohl’s and pay only $45.00

For Target:

Purchase Price:

$38

Discount:

(38 x 15)/100 = $5.70

Final Price:

38 - 5.70 = $32.30

You would save $5.70 from Target and pay only $32.30

Hope this helps! :)

3 0
3 years ago
Please help with this question
Dafna1 [17]
The answer is (-2,-3)  Thank you and please rate if I helped you! Thanks again!
4 0
2 years ago
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