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3 years ago

10

Calvin types 4 pages in 1/5 hour. The average page contains 250 words. What is Calvin’s approximate typing speed in words per mi

nute?

2 answers:

Cerrena [4.2K]3 years ago

7 0

Calvins aproximate typibg speed per minute is 5000.

Kitty [74]3 years ago

7 0

I think us one page because if it say's that over hot and a half he read's 4 pages that means that it's one and a half page

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Solve the equation: 5 + 2(3 + 2x) = x + 3(x + 1)

Ann [662]

Answer:

No solutions

Step-by-step explanation:

In this question, you would be solving for x.

Solve:

5 + 2(3 + 2x) = x + 3(x + 1)

Use the distributive property.

5 + 6 + 4x = x + 3x + 3

Combine like terms.

11 + 4x = 4x + 3

Subtract 4x from both sides.

11 = 3

Since we don't have an "x value", there are no solutions.

"No solutions" would be your answer.

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2 years ago

Whats 8 2.5% of 75?Write your answer as a decimal.

Katena32 [7]

216 % hope this helps !!

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3 years ago

Read 2 more answers

Harold bought 3 pounds od red applesand 4.2 pounds of green apples from Blue Star Company,where both kinds of apples were $1.75

alexandr1967 [171]

3(1.45)+4.2(1.75)= 5.25+7.35= 12.6 therefore Harold spent $12.60 on apples.

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3 years ago

If a number is divided into two but such. One part is 10 more than the other is the two parts in the ratio of 5 to 3 find number

alexandr1967 [171]

15 and 25 are the parts, 40 is the number

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2 years ago

In an effort to determine whether any correlation exists between the price of stocks of airlines, an analyst sampled six days of

vovikov84 [41]

Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

46.8 45.41 2190.24 2062.0681 2125.188

47.93 15.7 2297.2849 246.49 752.501

51.78 49.58 2681.1684 2458.1764 2567.2524

52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

7 0

3 years ago