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____ [38]
3 years ago
15

How many 4-digit number are divisible by 7,8,10 and 25​

Mathematics
1 answer:
saw5 [17]3 years ago
6 0

9514 1404 393

Answer:

  7

Step-by-step explanation:

In order for a number to be divisible by all of 7, 8, 10, and 25, it must be a multiple of the least common multiple of those numbers.

  LCM(7, 8, 10, 25) = 7×8×25 = 1400

There are floor(10,000/1,400) = 7 4-digit numbers divisible by 7, 8, 10, and 25. They are ...

  1400, 2800, 4200, 5600, 7000, 8400, 9800

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A science museum has a spherical model of the earth with a diameter of 6.5 m. What is the volume of the model? Use 3.14 for and
natka813 [3]

radius = diameter/2

radius = 6.5/2  =   \frac{13}{4}m

<span>volume  </span>=  \frac{4}{3} x \pi x (radius)³

              =  \frac{4}{3} x \pi x ( \frac{13}{4})^3

              =  \frac{4}{3} x \pi x \frac{2197}{64}

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3 years ago
I need help figuring out the answers for this
Gennadij [26K]
<h2>Step-by-step explanation:</h2>

Interest, is an additional money paid for borrowing money. it could be simple or compound interest.

simple interest= p×T×R/100

when interest is compounded annually

F= p(1+r)^t

F= future value

p= principal

r= rate

t= time

compound interest is calculated based on the initial and accumulated interest.

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F= p(n+r)^n

F= 10000(1+0.02)^1

F= 10000×1.02= $10200

interest= 10200-10000

interest = $200

second year

F = 10200(1+0.02)^1

F=10200×1.02= $10404

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interest= $204

third year

F= 10404(1+0.02)^1

F= 10404(1.02)

F = $10612.08

interest= 10612.08-10404

interest= $208.08

<h2>Bob's interest</h2><h2>I= p×t×R/100</h2>

first year

I=10000×1×0.02/100

interest= $2

second year

I= 10000×2×0.02/100

interest= $4

for the third year

I =10000×3 × 0.02/100

interest= $6

<h2>check answer above for final computation</h2>

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2 years ago
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harkovskaia [24]

Answer:

The answer is hank.

Step-by-step explanation:

  3c+9-9 = 417-9.

c=136

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2 years ago
Simplify 0.75 (5v+11)-0.25 (11+v)
SVETLANKA909090 [29]
The answer is 3.5v+5.5
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3 years ago
A block of glass has a mass of 22.5g and a volume of 9cm cubed.
melisa1 [442]

Answer:

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Step-by-step explanation:

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