Answer:
22 and 7
Step-by-step explanation:
Let x and y be the two numbers we are looking for:
The statement “their sum is 29” means x + y = 29
The statement “their difference is 15” means x - y = 15
we get this system:
x + y = 29 (1)
x - y = 15 (2)
Let’s solve it :
(1) + (2) ⇒ x + y + x - y = 29 + 15 ⇒ 2x = 44 ⇒ x = 44/2 = 22
Now we replace x by 22 in equation (1) :
22 + y = 29 ⇒ y = 29 - 22 = 7
Answer:
$5.71
Step-by-step explanation:
20-5.88=14.12
14.12-8.41=5.71
Your answer is 8x hope that helps
Hello!
Let 'a' stand for adult tickets and 'c' for children tickets.
a + c = 15
(Both adult and children tickets make up a total of 15 tickets).
30a + 20c = 330
a = 3
c = 12
A N S W E R:
William bought 3 adults tickets and 12 children's tickets.
Answer:
20 %
Step-by-step explanation:
% Increase = Increase/Original value × 100 %
Data:
Original = $25
This year = $30
Calculations:
Increase = This year - original
= 30 - 25
= $5
% Increase = 5/25 × 100 %
= 20 %
The percent increase of the price of the necklace was 20 %.
