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stepladder [879]
3 years ago
7

What 9917.14285714 times 7 not using a calculator???

Mathematics
1 answer:
Neko [114]3 years ago
8 0

Answer:

69420

Step-by-step explanation:

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I forgot how to do this​
adoni [48]

Answer:

\boxed{ \bold{  \huge{ \boxed{ \sf{1}}}}}

Step-by-step explanation:

\sf{ \frac{1}{2}  \times 2}

Multiply the numerators for the numerator and multiply the denominators for its denominator and reduce the fraction obtained after multiplication into lowest term.

\dashrightarrow{ \sf{ \frac{1 \times 2}{2 \times 1} }}

\dashrightarrow{ \sf{ \frac{2}{2} }}

\dashrightarrow{ \sf{1}}

Or, You can simply reduce the fraction with 2, which results to 1.

Hope I helped!

Best regards! :D

6 0
3 years ago
What is 35% divided by 200
yanalaym [24]

Answer:

0.00175

Step-by-step explanation:

5 0
3 years ago
If a globe rotates 150 degrees in 5 seconds, how many rotations does it make in 30 seconds? I got 900 seconds for my answer am I
Maksim231197 [3]

Start with a proportion, to get the number of degrees in 30 seconds:

         (150 degrees / 5 seconds) = ('D' degrees / 30 seconds) .

Cross multiply the proportion:  (150 x 30) = 5 x D

                                                     4,500  =  5 x D

Divide each side by  5 :                  900 = D

The globe turns 900 degrees in 30 seconds.

How many rotations is that ?
Each rotation is 360 degrees.
So 900 degrees is
                               (900 / 360) = <em>2.5 rotations</em> in 30 seconds.


8 0
3 years ago
Is this equation linear: 2x+5xy-3=0
Lina20 [59]

What is linear equation?

An equation between two variables that gives a straight line when plotted on a graph.

2x + 5xy - 3 = 0

x (2 + 5y) -3 = 0

x ( 2 + 5y ) = 3

2 + 5y = 3 / x

5y = (3/x) - 2

y = ( (3/x) - 2) / 5

According to the graph i don't think it's a linear equation.

3 0
3 years ago
For some constants a and b let \[f(x) = \left\{ \begin{array}{cl} 9 - 2x &amp; \text{if } x \le 3, \\ ax + b &amp; \text{if } x
Viktor [21]

Answer:

The value of a+b is 4.

Step-by-step explanation:

The given function is

\[f(x) = \left\{ \begin{array}{cl} 9 - 2x & \text{if } x \le 3, \\ ax + b & \text{if } x > 3. \end{array} \right.\]

It is given that for some constants a and b the function f has the property that f(f(x))=x for all x.

For x≤3,

f(x)=9-2x

For x>3,

f(x)=ax+b

At x=0,

f(0)=9-2(0)=9

f(f(0))=f(9)\Rightarrow a(9)+b=9a+b

Using property f(f(x))=x,

f(f(0))=0

9a+b=0                     .... (1)

At x=1,

f(1)=9-2(1)=7

f(f(1))=f(7)\Rightarrow a(7)+b=7a+b

Using property f(f(x))=x,

f(f(1))=1

7a+b=1                     .... (2)

Subtract equation (2) from equation (1).

9a+b-(7a+b)=0-1    

2a=-1

Divide both sides by 2.

a=-\frac{1}{2}

Substitute this value in equation (1).

9(-\frac{1}{2})+b=0

b=\frac{9}{2}

The value of a is -\frac{1}{2} and value of b is \frac{9}{2}. The value of a+b is

a+b=-\frac{1}{2}+\frac{9}{2}

a+b=4

Therefore the value of a+b is 4.

5 0
3 years ago
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