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amm1812
4 years ago
10

Can someone help please!!!!

Mathematics
1 answer:
lara [203]4 years ago
8 0

Answer:

1000 * 3^{9} Bacteria after 18 hours,

Step-by-step explanation:

The condition given in the problem is that the number of bacterial triple after every 2 hours.

So, after 2 hours, total bacteria= 1000 * 3

So, after 4 hours, total bacteria= 1000 * 3 * 3

Therefore, the general format for the number of bacteria is 1000 * 3^{n}, where n is the number of times the bacteria has tripled.

In 18 hours, there are \frac{18}{2} ties that the bacteria has tripled.

Therefore, the no. of bacteria after 9 hours= 1000 * 3^{9}

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Answer:

D & B

Step-by-step explanation:

7 0
3 years ago
Can someone help me please?
algol13

Answer:

x= 17

Step-by-step explanation:

6x+12=3x+63

Solve :)

7 0
3 years ago
The angle measures of a triangle are 2x+5 degrees 6x-5 degrees and 7x degrees. What is the value of x?
pav-90 [236]

Answer:

x = 12

Step-by-step explanation:

We know that the total angle measure of a triangle is 180 degrees, so the sum  of all the angles should be 180 degrees.

Therefore, we can add all the angles, set them equal to 180 and solve for x

2x+5 + 6x-5 + 7x = 180

We can combine all the x terms and all the numerical terms on the left side of the equation to get:

(2x+6x+7x) + (5-5) = 180

15x = 180

Then we can divide both sides by 15 to isiolate x

15x = 180

x = 180/15 = 12

6 0
3 years ago
Which angle is congruent to B
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3 0
3 years ago
A supplier sold a scanner machine for Rs 41,400 with 15% VAT after allowing 10% discount on it's marked price and gained 20%. By
victus00 [196]

3%

Answer:

Selling price with VAT {15%} = Rs 41400

S.P +15% of S.P =Rs 41400

S.P(1+15%)=Rs 41400

S.P=Rs 41400/1.15

Selling price without VAT =Rs 36000

Again

Discount = 10%

M.P =S.P+ Discount % of M.P

M.P-Discount% of M.P= S.P

M.P(1-Discount%)=Rs 36000

M.P(1-10%)=Rs 36000

M.P=Rs 36000/0.9

Marked Price = Rs 40,000

again

Discount =Discount % of M.P

=10% of 40000

=Rs 4,000

Again

Profit=20%

For 20% profit

Cost price = (S.P*100)/(100+profit%)

=(36000*100)/(100+20)

= Rs 30000

For 24% profit

selling price = (100+profit%)*C.P/100

=(100+24)*30000/100

=Rs 37200

Again

Discount = 40000–37200 = Rs2800

Discount % = discount/M.P*100%

=2,800/40,000* 100 = 7%

Finally

Discount percent to be reduced =10%–7%= 3%

3 0
2 years ago
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