Just 2 slope questions of math!!! please help <3 i would genuinely appreciate it

Answers

Answer 1

Answer:

Answer:

B: -5/4

Step-by-step explanation:

Starting from the point on the left at (-3,-2), you go to the left 4 which is the positive direction, and down 5 which is the negative direction. This brings you to the other point at (1,-3).

Hope this helps! :)

Answer 2

Answer: Answer: b:=5/4..............

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NEED HELP FAST PLEASE URGENT!!!!( the James family went out to eat and their total bill was $110. Since the service was great, they will leave a 20% tip. How much money should the family leave for tip? Answer is in money format and should include the dollar sign in front of the solution)
Help thx.............. :)
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A rhombus has a perimeter of 217cm. How do I find the length of each side?

Answers

since a rhombus has 4 equal sides, you can do 217 ÷ 4 which is 54.25, so each angle is 54.25 cm long.

A rhombus has 4 equal sides,, so divide 217 by 4.

Which equations illustrate the associative property of addition? Choose exactly two answers that are correct. A. (11 + 2.2) + (–5) = 11 + [2.2 + (–5)]
B. –3 • (5 + 8.5) = –3 • 5 + (–3) • 8.5
C. + 1.8 = 1.8 +
D. –7 + [4 + (–2.1 • 6)] = (–7 + 4) + (–2.1 • 6)

Answers

Solutions

Associative Property is a rule that refers to grouping. The rule is "a + (b + c) = (a + b) + c".

The correct answers are (A) and (D)

(A) = (11 + 2.2) + (–5) = 11 + [2.2 + (–5)]

(D) = –7 + [4 + (–2.1 • 6)] = (–7 + 4) + (–2.1 • 6)

How much is 20% of $350.00? How do I find this answer?

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20% of 350.00 is 70, you find this by multiplying 20% by 350 to get your final answer.

A percent is a decimal multiplied by 100. 0.5, for example, is 50% because 0.5 x 100 is 50. So 20% is 0.2. Multiply 350 by 0.2 to get 20 percent of 350

350 x 0.2= 70
$70 is 20% of 350

If someone could help me with this problem it'd be very much appreciated!! *sorry for the quality btw

Answers

Okay, lets write down what we do know...

4 out of the 12 cups are decaf, so the odds of selecting a decaf cup by random is 4/12 or 1/3

Alternatively 8 of the 12 cups are caffeinated, so the odds of selecting a caffeinated cup by random is 8/12 or 2/3

P(decaf)=1/3
P(caf)=2/3

But those odds are only for the first cup picked. The second cup has 4 probabilities...

1. Picking a decaf cup for the second time

2. Picking a decaf cup for the first time

3. Picking a caf cup for the second time

4. Picking a caf cup for the first time

So lets find the probability of each event...

1. Picking a decaf cup for the second time. If a decaf cup has already been picked, then the odds of drawing another one is 3/11

2. Picking a decaf cup for the first time. If a decaf cup hasn't already been picked, then the odds of drawing one is 4/11

3. Picking a caf cup for the second time. If a caf cup has already been picked, then the odds of drawing one is 7/11

4. Picking a caf cup for the first time. If a car cup hasn't already been picked, then the odds of drawing one is 8/11.

Okay, so now we can solve for the various possibilities.

1. Picking a decaf cup for the second time
1/3*3/11=3/33

2. Picking a decaf cup for the first time
2/3*4/11=8/33

3. Picking a caf cup for the second time
2/3*7/11=14/33

4. Picking a caf cup for the first time
2/3*8/11=16/33

Both cups were caffeinated, so neither were decaf.

Answer= Neither cup is decaf.

The cost, £C, of hiring a lorry to travel n miles is given by C=a+bn
where a and b are constants.
The cost of travelling 100 miles is £82. the cost of travelling 250 miles is £157

a find out the value of a and b
b work out the cost of hiring a lorry to travel 300 miles

Please show working out clearly, ill award a brainliest answer!!!!!

Answers

Answer:

Part a) a = 32 and b = 0.5

Part b) £182 is the cost of hiring.

Step-by-step explanation:

Given expression is C = a + bn

where C is the cost of hiring a lorry, n is the distance covered and a, b are two constants.

Part a).

We have to find the constants a and b.

Now we will find the system of equations to find the value of constants.

The cost of travelling 100 miles is £82.

82 = a + 100b ---------(1)

The cost of travelling 250 miles is £157

157 = a + 250b --------(2)

Now we will subtract equation 2 from 1.

157 - 82 = (a + 250b) - (a + 100b)

75 = 150b

b = $(75)/(150)=0.5$

Now we put the value of b in equation 1

82 = a + 100×(0.5)

82 = a + 50

a = 82 - 50 = 32

a = 32 and b = 0.5

Part b).

We have to find the cost of hiring a lorry to travel 300 miles.

C = a + bn

C = 32 + (0.5)(300)

C = 32 + 150

C = £182

Part A:
C= a + bn

Make the two equations out of the words:
82 = a + b100 * 2.5 = 205 = a + b250
157 = a+ b250

Subtract the two,
205 = a + b250
- ( 157 = a + b250)
48 = a

Find b by substituting in a:
82 = a + b100
82 = 48 + b100
34 = b100
b = 0.34
Answer for part a: a = 48 , b = 0.34

Part B:
C = a +bn <- when n = 300 , put in a and b, then solve
C = 48 + 0.34(300)
C = 48 + 102
C = 150

Cost when hiring a lorry to travel 300 miles is 150 pounds

At 10:05 a.m., there are 2 microscopic bacteria cells in the bottle. At 10:15 a.m., there are 8 cells in the bottle. At what time will there be 64 cells in the bottle?

Answers

Answer:

At 10:20 a.m., there will be 16 cells in the bottle.

At 10:30 a.m. there will be 64 cells in the bottle .

Step-by-step explanation:

at 10:30 there will be 64 bacteria