Answer:
Step-by-step explanation:
let price of one pretzel=x
price of one soda=y
3x+4y=11.25 ...(1)
5x+2y=8.25 ...(2)
multiply by 2
10x+4y=16.50 ...(3)
(3)-(1) gives
7x=5.25
x=0.75
from (1)
3(0.75)+4y=11.25
2.25+4y=11.25
4y=11.25-2.25
4y=9
y=9/4=2.25
cost of one pretzel=$0.75
cost of one soda=$2.25
Answer:
Euro
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
we starting by (3²) because it between brackets
then 9-3= 6
Take the denominator from the second fraction and divide it by the numerator of through first fraction
Answer:
The answer to your question is: the third option
Step-by-step explanation:
x² + 5x = - 1
x² + 5x + 
= -1 + 
(x + 
)² = - 1 + 25/4
(x + )² = (-4 + 25) / 4
(x + )² = 21/4
(x + ) = ± 
x = 
x = 
