Answer:
percentage applied to pants and sweater is 80%, and that applied to shirt and shoes is 70%
Step-by-step explanation:
<u>Question in English</u>
Leticia and Marta have gone Shopping in the sales. The First has bought $ 42 pants and a $ 24 shirt, and the second has bought a $ 28 sweater and $ 60 shoes. After applying the discounts, Leticia has paid $ 50.4 and Marta $ 64.4. Calculate the percentages of discounts applied knowing that the percentage applied to the pants and the sweater matched and that applied to the shirt and shoes as well.
<u>Solution</u>
Leticia = 42 + 24 = 50.4
Marta = 28 + 60 = 64.4
The percentage applied to the pants and the sweater coincided (that is, it is x) and that applied to the shirt and shoes also (that is, it is y)
Thus,
1) 42x + 24y = 50.4
2) 28x + 60y = 64.4
obtaining and in 1 we have
y = 50.4 - 42x / 24
y = 2.1 - 1.75x
Substituting and in 2 we obtain
28x + 60y = 64.4
28x + 60 (2.1 - 1.75x) = 64.4
28x + 126 - 105x = 64.4
126 - 64.4 = 105x - 28x
x = 61.6 / 77
x = 0.8
Substituting x into 1 gives:
42x + 24y = 50.4
42 (0.8) + 24y = 50.4
33.6 + 24y = 50.4
y = 50.4 -33.6 / 24
y = 0.7
Therefore, the percentage applied to pants and sweater is 80%, and that applied to shirt and shoes is 70%
Answer:
Option (3)
Step-by-step explanation:
We have to divide polynomial given as (x³ - 21x² + 147x - 343) by (x - 7) by synthetic division.
7 | 1 -21 147 -343
<u> ↓ 7 -98 343 </u>
1 -14 49 0
Therefore, quotient is (x² - 14x + 49) and the remainder will be 0.
Option (3) will be the answer.
Answer:
Step-by-step explanation:
The set of integers consists of zero ( ), the positive natural numbers ( , , , …), also called whole numbers or counting numbers , and their additive inverses (the negative integers , i.e., −1, −2, −3, …). The set of integers is often denoted by a boldface Z ( ) or blackboard bold mathbb (Unicode U+2124 ℤ) standing for the German word Zahlen ( , numbers ).
-Hope this helps
-GoldenWolfX
Ticket for a pantomime cost $80 for children. A party of 25 pays $143 in total. how many adults were there in the party?
can anyone answer this?
can anyone answer this
