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3 years ago

I BEG YOU I WILL GIVE BRAINIEST PLSSS

Mathematics

1 answer:

Norma-Jean [14]3 years ago

7 0

Answer:

its for the points U w U

Step-by-step explanation:

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A traffic officer is monitoring traffic on a windy section of road that has a speed limit of 55 miles per hour. A car speeds pas

Whitepunk [10]

Answer:

The relative speed of the passing car is 13 miles per hour.

Step-by-step explanation:

$v = \frac{x}{t} \\ v = 13 \frac{mile}{hours} \\ t = 1 \: min \: = \frac{1}{60} \: hours \\ 13 = \frac{x}{ \frac{1}{60} } \\ 13 = \frac{60 \: x}{1} \\ x = \frac{13}{60} miles \: \\ and \: we \: are \: done.$

i hope i have been useful buddy.

good luck ♥️♥️♥️♥️♥️.

4 0

4 years ago

wo crafty bacteria fall into a pot of milk which has recently been sterilized. They reproduce at a rate of 4% per day. Determine

RideAnS [48]

Answer:

Number of bacteria after 100 days is 1237.

Step-by-step explanation:

Since bacterial growth is a geometrical sequence.

Therefore, their population after time t will be represented by the expression

$S_{n}=\frac{a(r^{n}-1)}{r-1}$

Where a = first term of the sequence

r = common ratio of the sequence

n = duration or time

Since first term of the sequence = number of bacteria in the start = 1

Common ratio = r = (1 + 0.04) = 1.04

$S_{100}=\frac{1[(1.04)^{100}-1)]}{1.04-1}$

= $\frac{(50.5049-1)}{(0.04)}$

= 1237.64 ≈ 1237 [Since bacteria can't be in fractions]

Therefore, number of bacteria after 100 days is 1237.

7 0

3 years ago

Solve two step equations with fractions

MrRa [10]

Whatever you do to one side you do to he other

6 0

3 years ago

You have a 20 % total purchase coupon . You total is $134.22 if you use the coupon what does your total is $134.22 if you use th

Romashka-Z-Leto [24]

Answer:

$107.38

Step-by-step explanation:

FIRST WAY:

Since you have a 20% discount, that is equivalent to two-tenths of $134.22

Step 1: find the discount.

0.2 x 134.22 = 26.844 (round to 26.84)

Now that you have the discount, simply subtract that discount from your original price.

Step 2: find the final price.

$134.22 - $26.84 = $107.38

SECOND WAY:

A faster way to solve problems like this is to find the percentage of cash you are going to pay with the coupon. To do so, simply convert your percentage value to its corresponding decimal value relative to the original.

<em>Layman's terms: just subtract the 20% from 100% to get 80%.</em>

Step 1: find the percentage to be paid.

100% - 20% = 80% OR 1 - 0.2 = 0.8

Now that you have the percentage you need to pay, just multiply that percentage by the original amount.

Step 2: find the final payment.

$134.22 x 0.8 = $107.38

3 0

3 years ago

Square the binomial<br>(2x - 3)²

n200080 [17]

Step-by-step explanation:

Change it into this

(2x-3)(2x-3)

Then multiply the insides and outsides and add them

(2x*2x) + (2x* -3) + (-3*2x) + (-3*-3)

Simplify

4x^2 - 6x -6x + 9

Simplify again

4x^2 - 12x + 9

6 0

3 years ago