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velikii [3]
4 years ago
15

Everyday Jin reads for 0.75 hours in the mornings and 1.25 hours in the evening. He uses the expression 0.75d + 1.24d to keep tr

ack of the number of hours he has read for any number of days, d. If Jim reads for 20 days, how many hours has he read?
Please please please answer. Overdue
Mathematics
1 answer:
Llana [10]4 years ago
7 0

Answer:

Step-by-step explanation:

0.75d + 1.25d.......for 20 days

0.75(20) + 1.25(20) = 15 + 25 = 40 hrs <===

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kozerog [31]

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3 years ago
HELPPPP DUE SOON!!! WILL MARK BRAINLYIST AND 10 POINTS
larisa86 [58]

Answer:

688.7

Step-by-step explanation:

Top and Bottom

Area = 3/4 * pi * r^2

r = 6

Area = 3/4 * 3.14 * 6^2

Area =                                                               84.78

Don't round yet.

Vertical surface

Vertical surface = 3/4 * pi * d * h

d = 12 inches (the diameter)

Vertical surface = 3/4 * 3.14 * 12 * 15

Vertical surface =                                          423.9

Two inner faces

They are both rectangles

Area = 2 * L * W

L = 15

w=6

Area = 2 * 15 * 6                           <u>                  180</u>

Total                                                               688.68

Total = 688.7

7 0
3 years ago
How do I simplify this problem?
tamaranim1 [39]
I think you would just have to find the square roots
4 0
3 years ago
3x+1. I need to find and write an equation for x
Alchen [17]

Answer:

x =\frac{-1}{3}

Step-by-step explanation:

As the given algebraic expression is

3x+1

In order to solve the expression 3x+1 for x, we have to

3x+1=0

Step 1: Subtract 1 from both sides

3x+1-1=0-1

3x=-1

Step 2: Divide both sides by 3.

\frac{3x}{3} =\frac{-1}{3}

x =\frac{-1}{3}

Therefore, x =\frac{-1}{3}

<em />

<em>Keywords: equation, solution</em>

<em>Learn more equation solving from brainly.com/question/8806877</em>

<em>#learnwithBrainly</em>

8 0
3 years ago
What is the following sum ? 4sqrt(5) + 2sqrt(5)
tekilochka [14]

Answer:

6sqrt(5)

Step-by-step explanation:

8 0
3 years ago
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