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3 years ago

In the seventh grade, Rachel read 15 books.

Mathematics

2 answers:

UNO [17]3 years ago

8 0

Answer:

20%

Step-by-step explanation:

andre [41]3 years ago

4 0

Answer:

20%

Step-by-step explanation:

Calculate percentage change

from V1 = 15 to V2 = 18

(V2−V1)|V1|×100

=(18−15)|15|×100

=315×100

=0.2×100

=20%change

=20%increase

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Answer:

The student should charge $210 for typing the paper ⇒ answer C

Step-by-step explanation:

* Lets explain how to solve the problem

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* At first lets find his rate per hour

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Lucy is raising money for a school trip by selling lollipops and bags of

sukhopar [10]

<h3>16 lollipops and 9 bags of chips are sold</h3>

Solution:

Let "x" be the number of lollipops sold

Let "y" be the number of bags of chips sold

Cost of 1 lollipop = $ 1.50

Cost of 1 bag of chip = $ 1.75

Yesterday Lucy made $39.75 from selling a total of 25 lollipops and bags of chips

Therefore,

x + y = 25

y = 25 - x -------- eqn 1

Yesterday Lucy made $39.75

Therefore,

number of lollipops sold x Cost of 1 lollipop + number of bags of chips sold x Cost of 1 bag of chip = 39.75

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