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3 years ago

13

Marisol buys 3 notebooks that each cost the same amount and 1 calculator that costs $9. The total cost is $21. How much does eac

h notebook cost?

2 answers:

adoni [48]3 years ago

4 0

Answer: 4 dollars for each notebook

Step-by-step explanation:

21-9= 12

12/3=4

each notebooks costs 4 dollars

kondaur [170]3 years ago

4 0

Answer:

$4

Step-by-step explanation:

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Help please i need help with my homework

Sedbober [7]

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3 ( x ) + 55 = 85

Answer To Solving Y:

Let's solve your equation step-by-step.

3x + 55 = 85

Step 1: Subtract 55 from both sides.

3x + 55 − 55 = 85 − 55

3x = 30

Step 2: Divide both sides by 3.

3x / 3 = 30 / 3

x = 10

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Answer To The Angle:

( 3 ) ( 10 ) + 55 = 85

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2 ( y ) - 5 = 95

Answer:

Let's solve your equation step-by-step.

2y − 5 = 95

Step 1: Add 5 to both sides.

2y − 5 + 5 = 95 + 5

2y = 100

Step 2: Divide both sides by 2.

2y / 2 = 100 / 2

y = 50

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Answer To The Angle:

( 2 ) ( 50 ) − 5 = 95

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Please don't come at me if I am wrong.....:\

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But, the anwer should be 180 degrees

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3 years ago

Nathan packs 30 boxes in 2 hours.how many boxes can he pack in an 10 hour shift

Advocard [28]

Question :

nathan packs 30 boxes in 2 hours.how many boxes can he pack in an 10 hour shift?

30 boxes in 2 hours = 15 box in 1 hour

so

10 * 15 = 150

150 boxes is your answer

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3 years ago

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Trying to solve this problem but I can’t

vlabodo [156]

Answer:

option c I think as the correct answer.

Step-by-step explanation:

hope this helps you.

4 0

2 years ago

Read 2 more answers

9c + 5a + 5a + b<br> Kssjjdkdd

Troyanec [42]

Answer:

10a+b+9c

Step-by-step explanation:

first you have to join the like terms then you add them then you write the answer, I hope you understood

9c+5a+5a+b

9c+10a+b

10a+b+9c

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2 years ago

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Find the perimeter of the triangle to the nearest whole unit.<br> 18.<br> 16.<br> 14.<br> 12.

devlian [24]

Answer:

14

Step-by-step explanation:

Perimeter of the ∆ = sum of the length of the 3 sides.

The length of the 3 sides can be calculated by using the distance formula, $d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$ , to find the distance between the vertices of the ∆.

The coordinates of the 3 vertices are:

(-1, 3), (2, 2), (-2, -2)

Distance between (-1, 3) and (2, 2):

Let,

$(-1, 3) = (x_1, y_1)$

$(2, 2) = (x_2, y_2)$

$d = \sqrt{(2 -(-1))^2 + (2 - 3)^2}$

$d = \sqrt{(3)^2 + (-1)^2}$

$d = \sqrt{9 + 1} = \sqrt{10} = 3.2 units$

Distance between (2, 2) and (-2, -2)

Let,

$(2, 2) = (x_1, y_1)$

$(-2, -2) = (x_2, y_2)$

$d = \sqrt{(-2 - 2)^2 + (-2 - 2)^2}$

$d = \sqrt{(-4)^2 + (-4)^2}$

$d = \sqrt{16 + 16} = \sqrt{32} = 5.7 units$

Distance between (-2, -2) and (-1, 3)

Let,

$(-2, -2) = (x_1, y_1)$

$(-1, 3) = (x_2, y_2)$

$d = \sqrt{(-1 -(-2))^2 + (3 -(-2))^2}$

$d = \sqrt{(1)^2 + (5)^2}$

$d = \sqrt{1 + 25} = \sqrt{26} = 5.1 units$

Perimeter of triangle = 3.2 + 5.7 + 5.1 = 14.0 units

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3 years ago