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guapka [62]
3 years ago
9

Write the fraction 22/100 and 22/1000 as decimals how are the values of the digit two related in each of the decimals

Mathematics
1 answer:
Sonja [21]3 years ago
8 0
Jus look up 22/100 and 22/1000 as a decimal then compare the digit 2 in them
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When solving the equation such as 2/3 x = 4/5 , why would you multiply both sides of the equation by the reciprocal of ?
Aloiza [94]

2/3 x = 4/5

multiply both side by 3/2  it gets x alone

2/3 * 3/2 = 1

2/3 x * 3/2 = 4/5 * 3/2

x = 12/10

x =6/5

x = 1 1/5

3 0
4 years ago
DOES ANYONE KNOW THIS PLEASE HELP IM TIMED FOR 5 minutes
Marrrta [24]

Answer:

y= 5x......eqn(1)

-2x+2y= 12......eqn(2)

now

substituting value of eeqn(1) in eqn(2) ,

-2x+2(5x) =12

-2x + 10x = 12

8x = 12

X = 12 ÷ 8

X= 3/2

now put value of X in eqn (1)

y= 5x

y = 5 × 3/2

y = 15/2

Step-by-step explanation:

not sure any ans but I tried my best : )

3 0
3 years ago
A model for tumor growth is given by the Gompertz equation dV dt = a (In b-, In V) V where a >0 and b >0 are constants and
Xelga [282]

Answer:

V(t) = b^{(1-e^{-at})}

Step-by-step explanation:

We are given the following information in the question:

\displaystyle\frac{dV}{dt} = a (In b - In V) V

where a > 0 and b > 0.

\displaystyle\frac{dV}{dt} = a (In b-In V) V\\\\\displaystyle\frac{dV}{dt} = -aV(ln\frac{V}{b})\\\\\frac{dV}{V(ln\frac{V}{b})} = (-a)dt\\\\\text{Put } ln\frac{V}{b} = z\\\\\text{Integrating both sides}\\\\\int \frac{dV}{V(ln\frac{V}{b})} = \int (-a)dt\\\\\text{We get}\\\\\int \frac{dz}{z} = \int (-a)dt\\\\\\\text{where C is the constant of integration}

V(0) = 1~ mm^3\\V(t) = b.e^{e^{-at+C}}\\\text{Putting t =0, V(0) = 1}\\\\V(0) = 1 = b.e^{e^{C}}\\\\V(t) = b^{(1-e^{-at})}

where v(t) is the required tumor volume as a function of time that has an initial tumor volume of V(0) = 1 cubic mm.

5 0
3 years ago
PreCalc work, Need help with writing piece wise functions with graphs level 2. Giving branliest.
Natalija [7]

The piece-wise linear functions can be written as follows:

  • f(x) = -0.5x + 3, x < 5.
  • f(x) = -5, x = 5
  • f(x) = -x  + 9, x > 5.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For x less than 5, the y-intercept is of b = 3 and the function also gos through (2,2), hence the slope is:

m = (2 - 3)/(2 - 0) = -0.5.

Hence the rule is:

f(x) = -0.5x + 3, x < 5.

When x = 5, the function is constant at -5, hence:

f(x) = -5, x = 5

For x less than 5, the function goes through points (6,3) and (7,2), hence the slope is:

m = (2 - 3)/(7 - 6) = -1.

Then:

y = -x + b

When x = 6, y = 3, hence the y-intercept is given as follows:

3 = -6 + b

b = 9.

Hence the rule is:

f(x) = -x  + 9, x > 5.

More can be learned about linear functions at brainly.com/question/25537936

#SPJ1

3 0
2 years ago
Divide. Reduce the answer to lowest terms.<br> 3/8 divided by 1/7
fredd [130]
<h3>Answer:</h3>

2 \frac{5}{8}, or \frac{21}{8}

<h3>Explanation:</h3>

Use the Keep Change Flip method.  Change the sign to multiplication and flip the second fraction.  \frac{3}{8}*\frac{7}{1}

Multiply the numerators and the denominators separatley.  \frac{3*7}{8*1}=\frac{21}{8}

This cannot be simplified further, but it can be converted to a mixed number (as opposed to an improper fraction).  \frac{21}{8}=2 \frac{5}{8}

5 0
3 years ago
Read 2 more answers
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