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alexandr402 [8]
2 years ago
6

Journal Write a subtraction problem involving

Mathematics
1 answer:
AleksandrR [38]2 years ago
7 0

Answer:

Problem: 5.24 - 4.93

Step-by-step explanation:

You subtract just like a normal Addition problem however you MUST make sure the decimal point line up,...

5.24\\4.93\\

1st: subtract the 3 from the 4 [0.01]

2nd: subtract the 9 from the 2 (make the 2 a 12 (by carrying a one from the 5 (which then becomes a 4))) [0.30]

3rd: Finally subtract the 4 from the 4,... 0

<em>Answer = 0.31,...</em>

A more summed up answer: Subtracting (and adding for that matter) decimals happens exactly like normal. However you MUST MAKE SURE that your decimal points are lined up,... if you are subtracting a 0.09 from a 4.5 and the 4.5 doesn't have a hundredths place just remember that you can add a 0 on the end (4.50) without chancing it's value. (and then just subtract like normal)

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Hello I need help on this math question​
Zigmanuir [339]

Answer:

50.24\ cm ^2

Step-by-step explanation:

Let's start by finding the radius of this circle.

D=2r\\8=2r\\\text{Divide both sides by 2}\\r=4

Note that in the equation:

A=\pi r^2

"A" stands for area and "r" stands for radius.

Now, let's substitute the given values into the equation.

A=\pi r^2\\A=3.14*(4)^2\\A=3.14*16\\A=50.24\ cm^2

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2 years ago
HELPPPP ITS TIMEDDD WILL GIVE BRAINLYISTTTT
Morgarella [4.7K]
I’m pretty positive it’s 4 units. good luck!
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3 years ago
If the food is good or if I eat too much, I'll exercise. How do you write this compound statement in symbols.
Naily [24]
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8 0
3 years ago
Tamara has money in a savings account
olga2289 [7]

Answer:

  • 1.03a

Step-by-step explanation:

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  • Interest rate = 3% per month

<u>Amount after a month:</u>

1. ........................

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4 0
3 years ago
. A retailer sold 10 packs of pens in 3 days. There were 48 pens in each pack. He sold twice as many pens on Sunday than on Mond
Marizza181 [45]

Answer:

The number of pens sold on Monday is 107 pens

Step-by-step explanation:

total pack of pen sold by the retailer in 3 days =  10 packs

total number of pens in the 10 packs = 48 x 10 = 480 pens

let the number of pens sold on Monday = x

let the number of pens sold on Sunday = y

let the number of pens sold on Tuesday = z

He sold twice as many pens on Sunday than on Monday

y = 2x ------equation (1)

He sold 55 pens fewer on Tuesday than on Sunday

y = z + 55 ------equation (2)

total number of pens sold in the three days

y + z + x = 480  ------equation (3)

from equation (1) make x the subject of the formula

x = y/2

from equation (2) make z the subject of the formula

z = y - 55

substitute the value of x, and z into equation (3)

y + y/2 + y - 55 = 480

2y + y/2 = 480 + 55

5y/2 = 535

5y = 535 x 2

5y = 1070

y = 1070 / 5

y = 214

The number of pens sold on Monday is:

x = y / 2

x = 214 / 2

x = 107 pens

Thus, the number of pens sold on Monday is 107 pens

5 0
3 years ago
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