2 years ago

PLEASE EXPLAIN I NEED THIS

Mathematics

1 answer:

vichka [17]2 years ago

7 0

Blah Norah don’t know what I want to do lol lol I bet you are you lol

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A cab company charges $5 per cab ride, plus an additional $1 per mile driven. How long is a cab ride that costs $14?

marishachu [46]

Answer:

The answer is 9 miles.

Step-by-step explanation:

14-5=9.

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2 years ago

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In the formula A(t) = A0ekt, A(t) is the amount of radioactive material remaining from an initial amount A0 at a given time t an

Alenkasestr [34]

Answer: 693 years

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

$A(t) =A_0e^{kt}$

k = rate constant

t = time taken for decomposition = 1

$A_0$ = Initial amount of the reactant

$A_t$ = amount of the reactant left = $A_0-\frac{0.1}{100}\times A_0=0.999A_0$

$0.999A_0=A_0e^{k\times 1}$

$0.999=e^k$

$k=-0.001year^{-1}$

for half life : $t=t_\frac{1}{2}$

$A_t=\frac{1}{2}A_o$

Putting in the values , we get

$\frac{1}{2}A_0=A_0e^{-0.001\times t_\frac{1}{2}$

$t_\frac{1}{2}=693 years$

Thus half life of this isotope, to the nearest year is 693.

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3 years ago

4x + 11y = 7<br> 4x + 3y = -1

Serhud [2]

Answer:

x= - 1

y= 1

Step-by-step explanation:

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2 years ago

The sum of two exterior angles of an isosceles triangle is equal to 240°. What are the measures of the interior angles? THERE AR

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Dang that’s crazy, send me some pics and you got a deal

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3 years ago

A ribbon that is 22 3/4 inches long has to be divided into 7 equal pieces

denis-greek [22]

Answer:

3 1/4 inches

Step-by-step explanation:

22 3/4 ÷ 7

21÷7=3

1 3/4 = 7/4

7/4= 1/4+1/4+1/4+1/4+1/4+1/4+1/4

3 1/4 inches

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3 years ago

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