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Zigmanuir [339]

3 years ago

7

Three friends each create 4 bags of starter bread dough. After ten days, each of those four bags is divided into four more bags

of dough. How many days pass before 192 bags of dough are created?

1 answer:

Marysya12 [62]3 years ago

3 0

It pass 48 days ( please comment if is right

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The maximum height of a vehicle that can safely pass under a bridge is 12 feet 5 inches. A truck measures 162 inches in height.

AlladinOne [14]

Height of the truck =m 162 inches Height of the bridge under which vehicles pass = 12 feet 5 inches = (12 * 12) + 5 inches = 144 + 5 inches = 149 inches We arrived at the above deduction from the fact that 1 feet is equal to 12 inches. Now Difference in height of the truck and the bridge is = 162 - 149 inches = 13 inches So the truck is 13 inches taller than the maximum height of the bridge. The correct option among all the options that are given in the question is the second option or option "B". I hope it helps you

8 0

3 years ago

A scientist begins with 250 grams of a radioactive substance. After 250 minutes, the sample has decayed to 32 grams. Rounding to

s2008m [1.1K]

Answer:

Part 1 : $A=250 e^{-0.008223t}$

Part 2 : Half life is 84 minutes ( approx )

Step-by-step explanation:

Part 1 : Suppose the function that shows the amount( in grams ) of the substance after t minutes,

$A=A_0 e^{kt}$

If t = 0 min, A = 250 grams,

$250=A_0 e^{0}$

$\implies A_0 = 250$

If t = 250, A = 32 grams,

$32 = A_0 e^{250k}$

$32 = 250 e^{250k}$

$0.128 = e^{250k}$

Taking ln both sides,

$\ln(0.128) = 250k$

$\implies k =\frac{\ln(0.128)}{250}=-0.008223$

Hence, the equation that shows this situation,

$A=250 e^{-0.008223t}$

Part 2 : If A = 250/2 = 125,

$125 = 250 e^{-0.008223t}$

$0.5 = e^{-0.008223t}$

Taking ln both sides,

$\ln(0.5) = -0.008223t$

$\implies t =\frac{\ln(0.5)}{-0.008223}\approx 84$

Therefore, the half life of the substance would be 84 minutes.

8 0

3 years ago

60+60×0+1 can you solve this for me please

Likurg_2 [28]

60+60×0+1= 61

So your answer is 61.

Hope I Helped!!!

7 0

3 years ago

Ksju [112]

Answer:

1/24

Step-by-step explanation:

5/12 - 3/8=?

The first step is to find a denominator (bottom number) that is the same for both fractions. In this case, 24 works.

10/24 - 9/24 = ?

1/24

8 0

3 years ago

Read 2 more answers

The function of f(x) varies directly with x, and f(x)=48 when x=8.<br> Evaluate f(x) when x=2

lara31 [8.8K]

Here's the equation for direct variation. k=y/x [ f(x)=y]
Find k
k= 48/8=6
6=y/2
y=12
Hope this helps.

5 0

3 years ago