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3241004551 [841]
3 years ago
10

How many 3 come while writing from1 to 400​

Mathematics
2 answers:
Bogdan [553]3 years ago
7 0

Answer:

I'm pretty sure it's 195 times

Step-by-step explanation:

(3, 23, 30-39 (extra for 33), 43, 53, 63, 73, 83, 93) x 5 = 95

95 + 100 (from 300's) = 195

ella [17]3 years ago
6 0

Answer:

pretty sure it's 195 times

Step-by-step explanation:

(3, 23, 30-39 (extra for 33), 43, 53, 63, 73, 83, 93) x 5 = 95

95 + 100 (from 300's) = 195

why do you kneed to know this

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A cone has a circular base of radius 8m. Given that the total surface area of the cone is 350m^2, find the slant height
Gnom [1K]
<h3>Hello There!!</h3><h3><u>Given</u></h3>

Radius of Circular Base Of Cone= 8m

Total Surface Area= 350m²

<u>Considering</u> Slant Height as l

<h2><u>Solving</u></h2>

<u>We </u><u>know</u><u>,</u>

Total Surface Area= Curved Surface Area of Cone+ Area of circular Base

i.e.,

350 { \text{m}}^{2}  = \pi \times r \times l + \pi \times  {r}^{2}

350  = \pi \times r(l \times r) \\  \\  \implies 350 = 3.142 \times 8(l + 8) \\  \\  \implies  \frac{350}{3.142 \times 8}  = l + 8 \\  \\  \implies 13.924 = l + 8 \\  \\ \implies l = 13.924 - 8 \\  \\   \therefore l = 5.924 \:  \text{cm}

So, Slant Height= 5.924 cm

<h3><u>Hope This Helps</u></h3>
8 0
2 years ago
Gregg’s phone plan charges $.50 per text message plus $.70 a day. Howard’s plan charges $.30 a text plus $2.50 a day. For what n
Kaylis [27]

Answer:

x=9

Step-by-step explanation:

.5x+.7 = .3x+2.5

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.2x=1.8

/.2    /.2

x=9

.5(9)+.7=5.2

.3(9)+2.5=5.2

4 0
3 years ago
Qual o valor de cos45° + sen30° /cos60°
Airida [17]
Well, this question needs to be in English, but if you're asking for 45° + 30°+ 60° it = 135<span>° 
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7 0
3 years ago
A table cost $350 there is also a sales tax of 7% how much does the table cost including the sales tax
beks73 [17]

Answer:

$374.50

Step-by-step explanation:

hope this helps plz mark brainliest

7 0
3 years ago
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In a fitness program, Pedro does 20 sit-ups on the first day, and increases this by 2 sit-ups everyday. Determine the day when t
Fittoniya [83]

Answer:

day 540

Step-by-step explanation:

He increases his number of situps by 2 each day meaning on day 1 he'd do 2 extra, on day 2 he'd do 4 extra, on day he'd do 6 extra etc. We can show this by saying +2x where x is the day he is on.  Then since he started with 20 we have to add 20 so it would be 20+2x.  We want to know what day it is when he does 1100 situps so we can set our equation equal to 1100 and solve for X which is the day it would be.

20+2x=1100

2x=1080

I hope this helps and please don't hesitate to ask if there is anything still unclear!

x=540

5 0
3 years ago
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