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IRINA_888 [86]
4 years ago
8

one of the requirements of becoming a court reporter is the ability to type 225 words per minute. Donald can currently type 180

words per minute, and believes that with practice he can increase his typing speed by 5 words per minute each month. Which of the following represents the number of words per minute that don't believe he'll be able to type M months from now?<br /> A) 5+180m<br /> B) 225+5m<br /> C) 180+5m<br /> D) 180-5m
Mathematics
1 answer:
Sedaia [141]4 years ago
7 0
D because it is always subtract 5 words every month
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WILL MARK BRAINLIEST
LekaFEV [45]
Suppose we have a generic equation of the form:
 ax ^ 2 + by ^ 2 + ax ^ 2 + cx + dy = f&#10;

 1) The first thing you must do to complete squares is to group similar terms of the form:
ax ^ 2 + cx + by ^ 2 + dy = f&#10;

 2) The second step is to complete the squares.

 3) The third step is factor the quadratic equation

 4) The fourth step is to identify the center and the radius

 Answer:
 
the first step in finding the center of the circle by completing the square is:
 
C group like terms
8 0
3 years ago
A boy spent 20% of his money on books and 20% of the remainder on food.If he had $2000 left, how much money did he have at first
DENIUS [597]

Answer:

\$3,125

Step-by-step explanation:

Let s represent the amount of money he initially started with.

After he spent 20% on books, he will have 100\%-20\%=80\% of his initial money left. We can represent this as 0.8s.

Following that, the boy spends 20% of the remainder of his money on food. Similarly, he will have 100\%-20\%=80\% of the remainder of money he had left after he purchased the books. Therefore, he ends up with 0.8(0.8s)=0.64s of his money left.

Since we're given that he had $2,000 after all these transactions, we have the following equation:

0.64s=\$2,000

Divide both sides by 0.64 to isolate and solve for s:

s=\frac{2,000}{0.64}=\boxed{\$3,125}

Therefore, the boy had $3,125 to begin with.

7 0
3 years ago
Read 2 more answers
How do you solve 2z - 31 = -9z + 24?
Schach [20]

2z−31=−9z+24

Add 9z to both sides.

2z−31+9z=−9z+24+9z

11z−31=24

 Add 31 to both sides.

11z−31+31=24+31

11z=55

Divide both sides by 11.

11z/11=55/11

z=5

6 0
3 years ago
Read 2 more answers
First person to reply gets brainliest
aniked [119]

Answer:

I'm not first, but thanks for the points! Have a nice day! :D

Step-by-step explanation:

6 0
3 years ago
I just need help cause if I don’t I don’t know what imma do
erica [24]

Answer:

P(32) = \frac{1}{90}

P(Odd) = \frac{1}{2}

P(Multiples\ 5) = \frac{1}{5}

Step-by-step explanation:

Given

Sample Space = 10 to 99

First, we calculate the sample size (n)

n = 99 - 10 + 1

n = 90

Solving (a): P(32)

In 10 to 99, there is only 1 32.

So,

P(32) = \frac{n(32)}{n}

P(32) = \frac{1}{90}

Solving (b): P(Odd)

There are 45 odd numbers between 10 and 99

i.e.

n(Odd)  = 45

So:

P(Odd) = \frac{n(Odd)}{n}

P(Odd) = \frac{45}{90}

P(Odd) = \frac{1}{2}

Solving (c): P(Multiple of 5)

There are 18 multiples of 5 between 10 and 99

i.e

P(Multiples\ 5) = \frac{18}{90}

P(Multiples\ 5) = \frac{1}{5}

4 0
3 years ago
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