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gizmo_the_mogwai [7]
3 years ago
6

I NEED THE CORRECT ANSWER IN ORDER TO PASS PLS HELP!

Mathematics
2 answers:
AnnZ [28]3 years ago
8 0

Answer:

c. ½x + 4 = 12; x = 16

Step-by-step explanation:

1/2 x ( Half of the allowance spent at movies & x is allowance )

1/2x + 4 ( Earned additional $4 )

1/2x + 4 = 12 ( Had $12 at the end of the week )

Check:

1/2 16 +4 = 12

8 + 4 = 12

12 = 12

Correct!

astra-53 [7]3 years ago
5 0

Answer:

The answer is C.1/2x+4=12; x=16 :)

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Bacteria in a culture increase at a rate proportional to the number of bacteria present. An initial population of 300 triples in
beks73 [17]

Answer:

<em>After 24 hours, there will be 4191 bacteria present in the culture.</em>

<em></em>

Step-by-step explanation:

Initial number of bacteria = 300

amount in 10 hrs = 3 x 300 = 900

time taken = 10 hours

Bacterial growth is exponential, ans so we use the equation

N = N'e^{kt}

where N is the final amount

N' is the initial amount

k is the growth constant

t is the time

For this first case, we have

900 = 300 x e^{k*10}

3 = e^{10k}

take natural log of both sides, we'll have

ln 3 = ln e^{10k}

1.0986 = 10k

k = 1.0986/10 = 0.10986

using the growth constant above, we calculate for a day which is 24 hours

N = N'e^{kt}

N = 300 x e^{0.10986*24}

N = 300 x e^{2.637}

N = 300 x 13.97

N = <em>4191 bacteria</em>

3 0
3 years ago
2) The United States can be divided into four geographical regions: Northeast, South, Midwest, and
Rudiy27

Answer:

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Step-by-step explanation:

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6 0
3 years ago
P = nc - e and p is 4520 and n is 3000 and e is 700 what is the value of c
adoni [48]

Answer:

c= 1.74

Step-by-step explanation:

4520 = 3000(c)-700

4520=3000c-700

+700             +700

5220=3000c

c=1.74

to check to see if this is right you would do this:

4520=3000(1.74)-700

4520=5220-700

4520=4520

3 0
3 years ago
How to do this question
madam [21]

Answer:

4\sqrt{3} -3\sqrt{2} (or) 2.68556

Step-by-step explanation:

first you're going to simplify the radical expression:

-\sqrt{12} becomes -2\sqrt{3}

\sqrt{18} becomes 3\sqrt{2}

2\sqrt{27} becomes 6\sqrt{3}

your equation should now be -2\sqrt{3} -3\sqrt{2} +6\sqrt{3}

next you're going to collect like terms -2\sqrt{3} +6\sqrt{3} =4\sqrt{3}

so your final answer is 4\sqrt{3} -3\sqrt{2}

7 0
3 years ago
What is the inverse of this equation and why?​
Tema [17]

Answer:

Step-by-step explanation:

A=\sqrt{3}-1\\/2

A^{-1}=\frac{2}{\sqrt{3}-1 }

<u>We take reciprocal of the value for taking inverse.</u>

Place of numerator and denominator exchange.

3 0
3 years ago
Read 2 more answers
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