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schepotkina [342]
3 years ago
15

Joanne bought a box of pens for $3.75. There are 100 pens in a box. The pens individually cost 7 cents. How much money did she s

ave? A. $3.25 B. $0.38 C. $7.00 D. $10.75
Mathematics
2 answers:
lesantik [10]3 years ago
7 0

Answer:

The answer is C) $7.00

PtichkaEL [24]3 years ago
4 0

Answer: A $3.25

Step-by-step explanation:

Each pen cost 7pm. So 100 pens would have cost 7p x 100 = $7

She bought a box of hundred for $3.75

He actually saved:

7 - 3.75 = 3.25

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Kasey needs to get 80% of his questions correct on his math test to get B for the quarter. If his test has 60 questions, how man
Neko [114]

Answer:

80                  4                    4

___ x 60 = ____ 60 =    _____ x 12 = 48 questions he will need to get right.

100                 5                    1

6 0
3 years ago
The volume of air inside a rubber ball with radius r can be found using the function V(r) = four-thirds pi r cubed. What does V
mr Goodwill [35]

Answer:

The volume of the rubber ball when the radius equals five-sevenths feet

4 0
3 years ago
Read 2 more answers
Eddie sells homemade pies for $10 each. marsha sells pies for $8, and on one particular day, sells 3 more pies than eddie sells.
serg [7]
Eddie sold 12 pies and Marsha sold 15 pies.
They both made $120.
Find multiples of 8 that are divisible by 10
5 0
4 years ago
Find the probability
4vir4ik [10]

Answer is in a box.

The bag contains 6 red marbles, 8 blue marbles and 9 green marbles, that is 23 marbles.

The probability that one of the 23 marbles will be picked is 1 or 100%, we are picking a marble for sure.

So what is the probability you will pick for example one of the 6 red marbles? It is 6 out of 23 but since we need percentages multiply by 100,

\frac{6}{23}\cdot100\approx26.09\%

The probability to pick a blue marble is,

\boxed{\frac{8}{23}}\cdot100\approx34.78\%

And the probability to pick a green marble is,

\frac{9}{23}\cdot100\approx39.13\%

To check that everything is right you can sum all the probabilities; the probability that it will be either red, blue or green is 100% so the individual probabilities must sum to 100%, and they do,

26.09\%+34.78\%+39.13\%=100\%

Hope this helps :)

8 0
3 years ago
For a circle with a diameter of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a len
Sholpan [36]

Answer:

\boxed{\boxed{\theta=150^{\circ}}}

Step-by-step explanation:

We know that,

\text{Arc length}=r\cdot \theta

where,

r = radius,

θ = central angle in radian.

Given,

diameter = 6 m, so radius = 3 m.

\text{Arc length}=\dfrac{5}{2}\pi

Putting the values,

\Rightarrow \dfrac{5}{2}\pi=3\theta

\Rightarrow \theta=\dfrac{5}{2\times 3}\pi

\Rightarrow \theta=\dfrac{5}{6}\pi=\dfrac{5}{6}\times 180^{\circ}=150^{\circ}


3 0
3 years ago
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