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laila [671]
3 years ago
7

If I sent out 200 letters and got 80 responses. If I want 20 more responses how many more letters do I have to send out

Mathematics
1 answer:
yawa3891 [41]3 years ago
7 0

Answer:

Step-by-step explanation:

50

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Initial value question help
ValentinkaMS [17]

Answer:

Initial amount of fish: 530

Population increase or decrease: decrease

Decrease rate: 92%

Step-by-step explanation:

P(t) = Size/population of fish after t years

t = numbers of years

Good luck! :D

7 0
3 years ago
Please help me : ]
blondinia [14]

Given point doesn't satisfy the inequality

Step-by-step explanation:

In order to check, if an inequality is satisfied by the point or not the point is put in the inequality

Given inequality is:

5x-2y+1>0

Putting the point (-2,-1) in the inequality

5(-2)-2(-1)+1>0\\-10+3+1>0\\-10+4>0\\-6>0

As -6 cannot be greater than zero,

So,

Given point doesn't satisfy the inequality

Keywords: Inequality, properties

Learn more about inequality at:

  • brainly.com/question/12884373
  • brainly.com/question/12896802

#LearnwithBrainly

7 0
3 years ago
I have 2 questions. Please help me with them. Thank you.
zavuch27 [327]
(x+8)^(2) + (y+9)^(2) = 169
(x+8)^(2) + (y+9)^(2) = 13^2

h = -8
k = -9
r = 13

answer
A. center (-8,-9)
radius = 13



--------------


(x-7)^2  + y^2 = 225
(x-7)^2  + y^2 = 15^2

h = 7
k = 0
r = 15

answer
B. center (7,0)
radius = 15
6 0
3 years ago
What is the unit rate for y=0.75x
Eva8 [605]
The unit rate is 0.75 per x
8 0
3 years ago
Use the 95% rule and the fact that the summary statistics come from a distribution that is symmetric and bell-shaped to find an
Nonamiya [84]

Answer:

Intervals = (1,064) , (1,036)

Step-by-step explanation:

Given:

Use 95% method

Mean = 1,050

Standard deviation = 7

Find:

Intervals.

Computation:

95% method.

⇒ Intervals = Mean ± 2(Standard deviation)

⇒ Intervals = 1,050 ± 2(7)

⇒Intervals = 1,050 ± 14

⇒ Intervals = (1,050 + 14) , (1,050 - 14)

⇒ Intervals = (1,064) , (1,036)

4 0
3 years ago
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