2 years ago

How long should a person take to travel 2000m at an average speed of 5m/s

Mathematics

1 answer:

zimovet [89]2 years ago

8 0

Answer:

400

Step-by-step explanation:

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Evaluate the expression 2×2×2[1/4+4(36÷12)]

frez [133]

$2*2*2[\frac{1}{4}+4(36:12)]=8(\frac{1}{4}+4*3)=8*(\frac{1}{4}+12)=8*12,25=98$

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2 years ago

abby has saved 67% of the money she needs to buy a new camera that cost $156.00 how much more money does she need to buy a new c

worty [1.4K]

Answer:

$51.48

Step-by-step explanation:

Percent left: 100%-67%=33%

33% can also be expressed as the fraction 33/100

Then, 33% of 156 is 156*33/100=51.48

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3 years ago

Find percent 15 yards to 18 yards

Katen [24]

The answer is 8.333333333

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3 years ago

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The amount of radioactive uranium changes with time. The table below shows the amount of radioactive uranium f(t) left after tim

aniked [119]

Answer:

$f(t) = 100(0.25)^t$

Step-by-step explanation:

The general exponential function is,

$f(t)=ab^t$

The points given in the table are,

$(0,100),(0.5,50),(1,25)$

Putting $(0,100),(1,25)$ in the general equation, we get

$\Rightarrow 100=ab^0$

$\Rightarrow a=100$

And

$\Rightarrow 25=ab^{1}$

$\Rightarrow ab=25$

Putting the value of a,

$\Rightarrow 100b=25$

$\Rightarrow b=0.25$

Now the exponential function becomes,

$f(t) = 100(0.25)^t$

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3 years ago

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Find the equation of the line passing through (1,3) and perpendicular to y=-4/3-2

Effectus [21]

Answer:

x=1

Step-by-step explanation:

Find the negative reciprocal of the slope of the original line and use the point-slope formula.

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3 years ago