Plug y=2x+1 into <span>x+2y=17, we have:
x+ 2(2x+1)= 17
</span>⇒ x+ 2*2x+ 2*1= 17 (distributive property)
⇒ x+ 4x+ 2= 17
⇒ 5x= 17-2
⇒ 5x= 15
⇒ x= 15/5
⇒ x= 3
<span>
y= 2x+1= 2*3+1= 7
Final answer: x= 3, y= 7~</span>
Answer:
d.
1/8% higher; $1018.75
Step-by-step explanation:
edge21'
good luck, i hope this helps :)
Answer:
The answer is 286 dollars.
Step-by-step explanation:
To find the 5% of a number is to multiply it by 0.05. 286x0.05 is 14.3
286+14.3 is equal to approximately 300 dollars.
This can be solve by establishing equations.
let x be the miles mrs. storey drove
y be the miles mr storey drovee
the first equation is
y = 3x
second equation
x + y = 3200
then substitute equation 1
x + 3x = 3200
4x = 3200
x = 800 miles mrs storey drove
y = 3x = 2400 miles mr storey drove
14% * 3.09 million = 432,600
