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natima [27]
3 years ago
7

Alicia bought a notebook and several erasers at the student store. The graph shows the relationship between the total cost of he

r items and the number of erasers she purchased.
What is the cost of each eraser?

a
$1.00
b
$2.00
c
$1.50
d
$3.50

Mathematics
2 answers:
melomori [17]3 years ago
6 0
<h3><u>Answer:</u></h3>

Option: C is the correct answer.

$ 1.50 is the cost of 1 eraser.

<h3><u>Step-by-step explanation:</u></h3>

Alicia bought a notebook and several erasers at the student store.

Let the cost of 1 eraser=$ x.

Now from the scatter plot we could see that when Alicia did not bought any eraser then her total cost =$ 2.

That means cost of a notebook=$ 2.

Now when she buys a notebook and two eraser then she pays=$ 5.

i.e.

Total cost=cost of notebook+ 2× cost of 1 eraser

Total cost=cost of notebook+2×x

i.e.

5=2+2x

⇒ 2x=5-2

⇒ 2x=3

⇒ x=1.5

Hence, cost of one eraser is:

$ 1.50

bija089 [108]3 years ago
4 0

Answer:

(B) $1.50

Step-by-step explanation:

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