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3 years ago

Bill buys a new machine.

Mathematics

1 answer:

EastWind [94]3 years ago

5 0

Answer:

For a, the machine depreciates 20% of its current value each year. So, It will lose 20% of its value in the first year. Then in the second year, it will lose 20% of THAT value (not of the original value) and so on.

b) Since the machine loses 20% of its value each year, it retains 80% of its value each

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Mikel gave a $1.32 tip for an order that cost $8.80. Determine whether or not each tip below is proportional to Mikel's tip. $2.

ludmilkaskok [199]

Answer:

1. Proportional

2. Not proportional

3. Proportional

Step-by-step explanation:

Mike's proportion

Michael gave $1.32 tip for an order that cost $8.80

$1.32÷$8.80=0.15

Given

1. $2.22 for $14.80

$2.22÷$14.80 =0.15

It is proportional to Mike's tip

2. $1.86 for $10.50

$1.86÷$10.50=0.1771

It I not proportional to Mike's tip

3. $0.78 for $5.20

$0.78÷$5.20=0.15

It is proportional to Mike's tip

Therefore,

1. Proportional

2. Not proportional

3. Proportional

5 0

3 years ago

What are the coordinates of this polygon's vertices?

Ostrovityanka [42]

coordinates are (x,y)

so for each point, go across the x axis and up the y axis

for the first point, you go over 1 unit and up one unit so the point is

(1,1)

for the second point, you go over 1 unit, but up 4 units so the point is

(1,4)

for the third point, you go over 5 units and up 1 unit so the point is

(5,1)

so your answer is

B) (1,1), (5,1), and (1,4)

5 0

3 years ago

Read 2 more answers

What is the answer to Y = -1/2x + 2

puteri [66]

Step-by-step explanation:

first ..

subtract 2 on both sides 2-2...2-y

then you should have 1/2x =y-(-2) then divide

6 0

3 years ago

Kim works as a server in a restaurant. She is serving the table where a group of her friends are eating. Her friends always tip

Lisa [10]

if the bill was $23.60, and the tip was 15%, kim will earn $3.54. the overall total of the meal would be $27.14 :)

Anwser will be $3.54

15% = .15 ( to convert percent to decimal, change the % to . and move the decimal two places to the left)

23.60 * .15 = 3.54

8 0

3 years ago

For the following geometric sequence find the recursive formula: {-1, 3, -9, ...}.

Artyom0805 [142]

Based on these first few terms, we can deduce that the next term is computed by switching the sign of the previous one, and multiplying it by 3: we start with -1, we switch the sign (1) and multiply by 3 (3); then again we switch the sign (-3) and multiply by 3 (-9), and so on.

Since switching sign is the same as multiplying by -1, we can compute every next term by multiplying the previous one by -3:

$a_1 = -1\\a_2 = a_1\cdot(-3) = (-1)\cdot(-3)=3\\a_3 =a_2\cdot(-3)=3\cdot(-3)=-9$

So, the recursive formula is

$a_n = -3a_{n-1}$

because it states precisely that the next term is -3 times the previous one.

6 0

3 years ago