mandy,jermey and lily went to an amusement park during their summer vacation mandy spent 16.25$ at the amusement park jermey spent $3.40 more than mandy spent lily spent 2times as much money as Jeremy spent how much did lily spend at the amusement park

Answers

Answer 1
Answer: Mandy: $16.25
Jermey: $16.25 + $3.40 = $19.65
Lily: $19.65 x 2 = $39.30
For Lily you would take the total of Jermey and times it by 2.

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What is the value of the expression x + (–y) when x = –3.8 and y = 1.7?A.
–2.1

B.
5.5

C.
2.1

D.
–5.5

Answers

-3.8 + (-1.7) =   -3.8 - 1.7 

-5.5     the answer is D 
D. -5.5

x + (-y)
(-3.8) + (-1.7)
= -5.5

PLEASE HELPPPPP FASSSTT

Answers

Answer:

a, c, d

Step-by-step explanation:

~Please only answer if you know for sure~
-Thank you-

Answers

Ok, so I am changing this answer to the correct one based on what you said

Area (Square) = length times width 

1yard^2⇒3feet^2⇒9^2

Then take 9 and divide 180 sq feet from it

180 ÷ 9  = 20 sq yards

Then multiply 20 by $15

20×$15=$300

Answer:

$300
180 square feet

So 

3 feet = 1 yard
9 square feet = 1 square yard

180/9 = 20 square yards

20 x 15 = $300

which is your final answer (:

A car travels at a constant speed. What is the car's speed between checkpoints, expressed as a unit ratecheck point a 1:00 120 miles
check point B 3:00 208 miles

Answers

find the time difference which is equal to 2hrs
now find the distance traveled which is 88 miles
now divide the distance with time and answer is 44 miles/hour

Solve and check. r\6=5 2\3

a. 34

b. 30 2\3

c. 20

d. 17\18

              ASAP

Answers

r/6 = 5 2/3

Multiply 6 to both sides:

r = 5 2/3 * 6

Convert 5 2/3 into an improper fraction:

r = 17/3 * 6

Multiply 6 to the numerator:

r = 102/3

Divide:

r = 34

So your answer is A
the answer is A. R= 34

The human population of Earth was approximately 6 billion in 1998. If the rate ofpopulation growth from then on was 2.3% per year, what would be the best
approximation for the human population (in billions) of Earth in 2020?

Answers

Answer:

  9.89 billion

Step-by-step explanation:

At that rate of growth, the population is multiplied by 1.023 each year. After 22 years, the population would be ...

  6·1.023^22 ≈ 9.89 . . . billion

Answer:

Let the equation for the population (P) growth be given by

P = P0ert, where P0 is the initial population in billioins at time t,

                           t is the number of years since 1987,

                           r is the rate of growth of population/year

In this case P0 = 5 billion and r = 0.02.  Putting these values into the equaation:

P = 5e0.02t

Year 1995 is 8 years after 1987, then the population would be

P = 5e0.02*8 = 5e0.16 ≈ 5.87 billion people

Step-by-step explanation: