First make 20 into a fraction, then solve; 3/5 · 20/1. 60/5 = 12. Hope that helps!
Answer:
31.3
Step-by-step explanation:
Order of Operations, Division goes first, then Addition.
19.4/2 = 9.7
20.6 + 9.7 = 31.3
Number of adults' tickets (x): $7.50x + $4.00(500 - x) = $3,312.50 $7.50x + $2,000.00 - $4.00x = $3,312.50 $3.50x = $1,312.50 x = 375
No. of children's tickets (500 - x): = 500 - 375 = 125
Answer: 375 adults' tickets, 125 children's tickets
Proof (Receipts totaled $3,312.50): = (375 tickets * $7.50) + (125 tickets * $4.00) = $2,812.50 + $500.00 = $3,312.50
Answer:
Values for x = -1 + 7i and -1 - 7i
Step-by-step explanation:
we have an equation,
(x+1)^2 = -49
We need to solve this equation for all values of x:
(x+1)^2 = - 49
Taking square root both sides
√((x +1)^2) = √-49
x + 1 = ± 7i
Subtract both sides by 1
x = -1 ± 7i
Hence we get two values for x = -1 + 7i and -1 - 7i
Answer:
No
Step-by-step explanation:
Step 1: Write equation
8u - 1 = 6u
Step 2: Solve for <em>u</em>
- Subtract 6u on both sides: 2u - 1 = 0
- Add 1 to both sides: 2u = 1
- Divide both sides by 2: u = 1/2
∴ u = -1/2 is NOT a solution.
