Mathematics
11.12.2020 21:41
118
484
7
Solved by an expert
A, b and c are positive integers a : b = 3:8 and b:c = 6:11
A, b and c are positive integers
a : b = 3:8 and b:c = 6:11
Show Answers
a : b = 3:8 and b:c = 6:11
coollid876
4,9(16 marks)
$10
Step-by-step explanation:
Assume the price of the phone case is x.
Assume the price of the charging cord is y.
Discounted price for phone case : 15% * x
= 0.15x
Discounted price for charging cord = 0.15y
Expression is therefore:
0.15x + 0.15y = 4.20
0.15 * 18 + 0.15y = 4.20
2.7 + 0.15y = 4.20
0.15y = 4.2 - 2.7
y = 1.5/0.15
y = $10
Popular Questions about the subject: Mathematics
During a figure skating routine, Jackie and Peter skate apart with an angle...
Mathematics
18.03.2023 11:14
Elena is programming a video game. She needs to simulate the power-up that...
Mathematics
27.02.2023 08:43
2. Find the coefficient of y^2 in the expression (1-2y)^4...
Mathematics
07.04.2021 05:42
Find the volume of each figure.Round to the nearest tenths...
Mathematics
27.04.2023 10:04
902 If the probability that a person will die in the next year is what is...
Mathematics
27.09.2021 21:44
Two sides and an angle (SSA) of a triangle are given. Determine whether the...
Mathematics
25.06.2020 01:30
The square number is 19 less than 100, what is the number?...
Mathematics
10.08.2021 04:12
In an experiment with 50 trials, the number 5 occurred 30 times, the number...
Mathematics
15.11.2022 21:25
Find the equation of a circle with center at (-2,-7) and a radius with endpoint...
Mathematics
10.03.2021 15:24
Given: P(A) = 0.77 P(B) = 0.05 P(A and B) = 0.5 Find P(A or B) 0.0385 O 0.27...
Mathematics
06.08.2022 11:55
New questions by subject
Four friends are going to the movies. The cost of one ticket is $9.50, and...
Mathematics
28.05.2022 01:09
(X + 75) (X+ 125) solve for X A.-10 B.10 C.180 D.125...
History
15.02.2020 17:41
You are a manager in a large information systems consulting company, managing...
Business
09.02.2022 13:03
More than of Americans eat ice cream at least once a month. About of these...
Mathematics
11.02.2023 02:59
Do the atoms in BeS share or gain/lose electrons? Share Gain/Lose...
Chemistry
09.05.2022 18:16
What is a good answer to why did you choose to go to this school? (It s an...
English
10.04.2021 14:00
Mary is cutting strips of paper for a craft project. Each strip is 1/6 of...
Mathematics
09.05.2022 09:03
PLEASE HELPPP !Conjugate each word in either present subjunctive/indicative...
Spanish
27.12.2022 05:03
Many people who have been diagnosed with major depressive disorder find their...
Advanced Placement (AP)
12.01.2021 17:37
Find out answers to questions
from an AI-bot
from an AI-bot
Get full access
Answers
