<u><em>Answer: y=27 and 27=y *The answer should be positive sign.*</em></u>
Step-by-step explanation:
multiplication property of equality is multiplying both sides of an equation by the same number does not change the equation.
a*c=b*c
division property of equality is dividing both sides of an equation by the same non-zero number does not change the equation.
a/c=b/c for c≠0
multiply by 3 both sides of an equation.
3*2/3y=18*3
simplify.
18*3=54
2y=54
divide by 2 both sides of an equation.
2y/2=54/2
simplify by equation.
54/2=27
27*2=54
54/27=2
2*27=54
y=27
Hope this helps!
Thanks!
Have a great day!
Answer:
11
Step-by-step explanation:
5 times 3 {subracted by} 2 times 2
15 - 4 = 11
After conducting some mathematical operations, we know that the 3 friends will get $28 back in change from a $100 bill.
<h3>
What are mathematical operations?</h3>
- An operation is a function in mathematics that transforms zero or more input values into a clearly defined output value.
- The operation's arity is determined by the number of operands.
- In mathematics, addition, subtraction, multiplication, division, and modular forms are the five basic operations.
So, the change they will get back from $100:
The Coaster is $4.50:
4.50 × 3 (friends) = 13.5
13.5 × 2 (Twice) = $27
The Slide $4.00:
4.00 × 3 (friends) = 12
12 × 2 (Twice) = $24
The Drop $3.50:
3.50 × 3 (friends) = 10.5
10.5 × 2 (Twice) = $21
Change:
100 - (27 + 24 + 21)
100 - 72
$28
Therefore, after conducting some mathematical operations, we know that the 3 friends will get $28 back in change from a $100 bill.
Know more about mathematical operations here:
brainly.com/question/28937023
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Complete question:
You and three friends are going to Wonderland Water Park. Your group plans to ride each water ride twice. Prices are shown in this table.
How much change will your group get back from a $100 bill?
Wonderland Water Park
The Coaster is $4.50
The Slide $4.00
The Drop$3.50
Answer:
The 95% confidence interval is "87.94, 91.86".
Step-by-step explanation:
The given values are:
Sample batches,
n = 25
Sample mean concentration,
= 89.9 mg
Amount of chemical,
σ = 5
α = 0.05
The critical value from Z table will be:
= 
= 
= 
Now,
The confidence interval will be:
= 
On substituting the values, we get
= 
= 
= 
Lower limit will be:
= 
= 
Upper limit will be:
= 
= 
Answer:
i cant sorry
Step-by-step explanation:
