1 year ago

What’s the answer of this problem

Mathematics

1 answer:

Elden [556K]1 year ago

3 0

Answer:

no b 11 sq.units is the answer

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Two out of every 5 costumers at a restaurant use cash to pay for their meal. What percent of the costumers pay with cash?

Gnoma [55]

Answer:

40%

Step-by-step explanation:

Percent means out of 100

Multiply the top and bottom by 20 to get the bottom to 100

2/5 * 20/20 = 40/100

The percent is 40%

6 0

2 years ago

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The value of a certain car decreases by 16% each year. What is the 1⁄2-life of the car?

svet-max [94.6K]

Answer:

The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

$V(t) = V(0)(1-r)^{t}$

In which V(0) is the initial value and r is the constant decay rate, as a decimal.

The value of a certain car decreases by 16% each year.

This means that $r = 0.16$

$V(t) = V(0)(1-r)^{t}$

$V(t) = V(0)(1-0.16)^{t}$

$V(t) = V(0)(0.84)^{t}$

What is the 1⁄2-life of the car?

This is t for which V(t) = 0.5V(0). So

$V(t) = V(0)(0.84)^{t}$

$0.5V(0) = V(0)(0.84)^{t}$

$(0.84)^{t} = 0.5$

$\log{(0.84)^{t}} = \log{0.5}$

$t\log{0.84} = \log{0.5}$

$t = \frac{\log{0.5}}{\log{0.84}}$

$t = 3.98$

The half life of the car is 3.98 years.

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3 years ago

Which letter labels a vertex? A only B C A and D

vladimir1956 [14]

Answer:

the answer is C.

Step-by-step explanation:

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2 years ago

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Is this correct? (im checking my answers)

zzz [600]

$1L=1,000mL\to1mL=\dfrac{1}{1,000}L=0.001L\\\\0.743mL=0.743(0.001L)=0.000743L\\\\Answer:\ \boxed{0.000743}$

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3 years ago

Explain your work !!!! What is 17^3 A. 20 B. 4913 C. 51 D. 306

Travka [436]

A number raised to an exponent is that number multiplied by itself that number of times.

17^3 = 17 x 17 x 17 = 4913

The answer is B.

4 0

2 years ago

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