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Romashka [77]
4 years ago
12

n the proportion 1 over z equals fraction numerator begin display style 4 over 5 end style over denominator 8 end fraction which

number is equal to z in the proportion?
Mathematics
1 answer:
pav-90 [236]4 years ago
4 0

Answer:

z=10

Step-by-step explanation:

we have

\frac{1}{z}=\frac{(4/5)}{8}

solve for z

z(\frac{4}{5})=8

z=8*5/4

z=10

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Situation:
FromTheMoon [43]

Answer:

5.6 days

Step-by-step explanation:

We are given;

Initial Mass; N_o = 25 g

Mass at time(t); N_t = 25/2 = 12.5 (I divide by 2 because we are dealing with half life)

k = 0.1229

Formula is given as;

N_t = N_o•e^(-kt)

Plugging in the relevant values;

12.5 = 25 × e^(-0.1229t)

e^(-0.1229t) = 12.5/25

e^(-0.1229t) = 0.5

(-0.1229t) = In 0.5

-0.1229t = -0.6931

t = -0.6931/-0.1229

t = 5.6 days

4 0
3 years ago
A bottle holds 2 pints. A carton holds 3 cups. What is the total the two containers hold in fluid ounces?
DaniilM [7]

Answer:

56 Fluid Ounces

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4 0
3 years ago
Read 2 more answers
How to find the LCD of fractions
horrorfan [7]
Example: \frac{3}{5}+ \frac{4}{9}
Look at the denominator of the fractions, and then see whether there is a common prime number associated with them.
In this example, since 5 and 9 (3*3) do not have any common prime numbers, you just multiply these numbers together and get 45.
There, we just found the LCD of fractions.

6 0
4 years ago
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Sally has just finished her thirty-fifth year with her company and is getting ready to retire. During her thirty-five years, Sal
lubasha [3.4K]

Answer:

$19153.26

Step-by-step explanation:

Here is the complete question: Sally has just finished her thirty-fifth year with her company and is getting ready to retire. During her thirty-five years, Sallys average annual salary was 45,603 How much can Sally expect to receive from Social Security annually if she were to retire today? (Assume she will receive 42% of her average annual salary.)

Given: Sally´s average salary while working is $45603.

           Sally will receive 42% of her average annual salary as social security.

Now, finding annual income of sally after retirement.

Sally´s income from social security after retirement= \frac{42}{100} \times 45603= \$ 19153.26

∴ Sally receive $ 19153.26 annually from social security.

7 0
4 years ago
Let μ = 160 and σ = 16. find the z-score for the score, x = 150.
cricket20 [7]
Put the given values in the formula
z=\dfrac{x-\mu}{\sigma}
and evaluate.
  z = (150 -160)/16 = -10/16
  z = -5/8

The z-score for the score x=150 is -5/8 = -0.625.
8 0
3 years ago
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