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Semmy [17]
3 years ago
11

The matrix method is being used to solve the system of equations x + 2y = 4 and 3x - y = 6.

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
8 0

Answer: b) multiply row 1 by -3 and add the result to row 2


Step-by-step explanation:


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Monica has $20. She needs to buy a gallon of milk that costs $2.50. She also wants to buy yogurt, which costs $1.20 a cup. What
Kitty [74]

We are given : Cost of a gallon of milk = $2.50.

Cost of a cup of yogurt = $1.20.

Total money Monica has = $20.

Number of cups of yogurt Monica can buy = x.

And inequality made is also correct

1.20x + 2.5 ≤ 20.

Now, we need to solve it for x.

Subtracting 2.5 from both sides, we get

1.20x + 2.5 -2.5 ≤ 20 - 2.5.

1.20x ≤ 17.5

Dividing both sides by 1.20, we get

1.20x/1.20 ≤ 17.5/1.20.

x ≤ 14.5833...

Because it's less than 15, so final answer is : 14 is  greatest number of cups of yogurt Monica can buy.



3 0
3 years ago
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If there is 1/6 of a cake and mitchell only wants 3/12 of it, how much of the cake does he want?
Debora [2.8K]
Are there choices to choose from?
5 0
3 years ago
Read 2 more answers
What’s the answer because I need to know the answer
Alex787 [66]

Answer: x = -5

Step-by-step explanation: you add -3 to the other side, which will look like x = 3 - 8

7 0
3 years ago
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The 12 students in the Environmental Club represent 10% of the students in the seventh grade. How many students are in the seven
Anna11 [10]

Answer:

60

Step-by-step explanation:

8 0
2 years ago
Bella is making button barrettes. She allows each of her friends to reach into er bag of buttons and randomly pick a color.
slava [35]

Answer:

Total no. of buttons = 300 + 700 + 1000

+ 500 = 2500

Possibility for a person to pick a pink button = 300/2500 = (3/25)%

Amount of pink buttons she can expect her friends to pick = 50(3/25) = 6

She can expect to make 6 pink barrettes

Step-by-step explanation:

4 0
3 years ago
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