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vlabodo [156]
3 years ago
9

A silk ribbon costs $5.60 for 0.8m. How much does 3.25m of this silk ribbon cost?

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
8 0
We can first find how much the ribbon cost for 1m by setting an equation.

Let $y be the cost for 1m:

0.8y = 5.60
y = 5.60 ÷ 0.8
y = 7

Now that we know 1m of ribbon cost $7, we can proceed to find how much 3.25m ribbon cost by mutiplying the length with the cost:

7 x 3.25
=$22.75

Therefore the answer is $22.75.

Hope it helps!
taurus [48]3 years ago
5 0

Answer:

$22.75

Step-by-step explanation:

#1) Find how much 1m of ribbon costs=  $5.60 divided by 0.8m= $7

#2) Look at how much does it cost for an amount of ribbon, 3.25m.

#3) Lastly, multiply $7 by 3.25 to equal to $22.75.

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1. 70  2. 85  3. 63  4. 20  5. They are vertical angles

Step-by-step explanation:

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3 years ago
At Pizza Pi, 40% of the pizzas made last week had extra cheese. If 8 pizzas had extra cheese, how many pizzas in all were made l
Natalija [7]

Answer:

20 pizzas.

Step-by-step explanation:

40% = 8

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3 0
3 years ago
Please help 8 points each but beware if you use my points for no reason I'll report you
zlopas [31]

Answer:

V = 32

Step-by-step explanation:

Comment

I think you should try this one yourself after I post my answer. Estimation is a very valuable tool -- the more you use it, the handier it gets.

Formulas

pi = 3

V = 4/3 * pi * r^3

Givens

r = 2

pi = 3

Solution

V  = 4/3 * pi * r^3                     Substitute values for symbols

V = 4/3 * 3 * 2^3                      Cancel the 3s

V = 4 * 2^3                               Expand the 2s

V = 4 * 2 * 2 * 2                       Find V

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4 0
2 years ago
Read 2 more answers
What dose this = to? triangles = to 180 buts all i know
lara31 [8.8K]

7. Straight lines are also = to 180°


If you look at the diagram, when you add the two angles together, they form a straight line.

Since the angles add up to 180°, you can do:

(x + 25)° + (4x + 5)° = 180°

x + 25 + 4x + 5 = 180        Combine like terms

5x + 30 = 180         Subtract 30 on both sides

5x = 150       Divide 5 on both sides

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3 0
3 years ago
Learn with an example
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Answer: 10,000

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5,000 * 2 = 10,000

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