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RSB [31]
2 years ago
6

3 folders cost $2.91 dollar sign . Which equation would help determine the cost of 2 folders? WRITE THE LETTER IN THE SPACE BELO

W.
Mathematics
1 answer:
Anna11 [10]2 years ago
3 0

Answer:

$1.94

Step-by-step explanation:

Cost of 3 folders = $2.91

We need to find the cost of 2 folders.

First we will find the cost of 1 folder

1 folder = $2.91/3 = $0.97

To find the cost of 2 folders, multiply $0.97 and 2

2 folders = $0.97 × 2

= $1.94

Hence, the cost of 2 olders is $1.94.

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the sum of two numbers is 63. one ninth of the first number plus one sixth of the second number is 21. find the numbers
PSYCHO15rus [73]

Answer: x= -189, y =252

Step-by-step explanation:

Let the first number be x and second number be y

so

x + y = 63

x = 63-y

now

1/9 of x + 1/6 of y = 21

x/9 + y/6 = 21

substituting x's value from equation i

(63-y)/9 + y/6 = 21

(378-6y+9y)/54 = 21

378+3y = 1134

3y = 1134-378

so, 3y = 756

so, y = 756/3

so, y = 252

now

x = 63-252

so, x = -189

6 0
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Suppose a seventh grader birthday is today,and she is 12 years old.how old was she 3 1/2 years ago?draw a number line
sleet_krkn [62]
She was 8.5 or 8 1/2
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The square root of -100 = ___ + ___i
ddd [48]

Answer:

The square root of -100 is 10i

Step-by-step explanation:

7 0
3 years ago
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Can someone please help me on this problem.
Rasek [7]
Your answer should be 101°. 52+53+154= 259. 360-259= 101. Hope that helps
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Who can help me with this worksheet ASAP need it for my tomorrow and I have a lot of homework to do please someone help me
RUDIKE [14]

Answer:

  1. 5n square root 5
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