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Mademuasel [1]
2 years ago
6

?/5 =8/10 type the missing number that makes this fraction equal

Mathematics
2 answers:
RideAnS [48]2 years ago
6 0

Answer:

4

Step-by-step explanation:

\dfrac 8{10} = \dfrac{8 \times 0.5}{10 \times 0.5} = \dfrac 45

SOVA2 [1]2 years ago
5 0
<h2>- - - - - - - - - - - - - - - - - - </h2><h3>\frac{?}{5}  =  \frac{8}{10}</h3><h3>Let's take the missing number as x.</h3>

<h3>\frac{x}{5}  =  \frac{8}{10}</h3><h3>Means = Extremes </h3><h3>x \times 10 = 5 \times 8</h3><h3>x =  \frac{5 \times 8}{10}</h3><h2>___</h2><h3>(Cancel by 2 table)</h3><h3>x =  \frac{5 \times4 }{5}</h3><h2>___</h2><h3>(Cancel by 5 table, So that we cancel 5 in the denominator and numerator)</h3><h3>x = 4</h3><h2>- - - - - - - - - - - - - - - - - -</h2>

<h2>Therefore, The missing number is 4. </h2>
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Complete the equation...
Nimfa-mama [501]

Answer:

x^2 -14x +49

( x-7)^2

Step-by-step explanation:

x^2 -14x

We are completing the square

Take the coefficient of x

-14

Divide by 2

-14/2 = -7

Square it

(-7)^2 = 49

Add it

x^2 -14x +49

Take the -7

( x-7)^2

8 0
3 years ago
Read 2 more answers
A department store, on average, has daily sales of 28,651.79. the standard deviation pf sales is $1000. On Tuesday, the store so
adelina 88 [10]

Answer:

Tuesday's Z-score is 7.56

Step-by-step explanation:

We are given that a department store, on average, has daily sales of 28,651.79 and the standard deviation of sales is $1000.

Also, it is given that on Tuesday, the store sold $36,211.08 worth of goods.

Let X = Daily sales of goods

So, X ~ N(\mu = 28,651.79, \sigma^{2} =1000^{2})

The z-score probability distribution is given by;

        Z = \frac{X-\mu}{\sigma} ~ standard normal N(0,1)

Now, Tuesday,s Z-score is given by;

      Z = \frac{36,211.08-28,651.79}{1000} = 7.56

Yes, Tuesday was an unusually good day as on this day more worth of sales takes place as compared to the average daily sales of $28,651.79 .

5 0
3 years ago
Help!! Find missing value for each quadratic function
Svetllana [295]

I'll do the first one to get you started. The answer is -3

=================================================

Explanation:

When x = -1, y = 0 as shown in the first column. The second column says that (x,y) = (0,1) and the third column says (x,y) = (1,0)

We'll use these three points to determine the quadratic function that goes through them all.

The general template we'll use is y = ax^2 + bx + c

------------

Plug in (x,y) = (0,1). Simplify

y = ax^2 + bx + c

1 = a*0^2 + b*0 + c

1 = 0a + 0b + c

1 = c

c = 1

------------

Plug in (x,y) = (-1,0) and c = 1

y = ax^2 + bx + c

0 = a*(-1)^2 + b(-1) + 1

0 = 1a - 1b + 1

a-b+1 = 0

a-b = -1

a = b-1

------------

Plug in (x,y) = (1,0), c = 1, and a = b-1

y = ax^2 + bx + c

0 = a(1)^2 + b(1) + 1 ... replace x with 1, y with 0, c with 1

0 = a + b + 1

0 = b-1 + b + 1 ... replace 'a' with b-1

0 = 2b

2b = 0

b = 0/2

b = 0

------------

If b = 0, then 'a' is...

a = b-1

a = 0-1

a = -1

------------

In summary so far, we found: a = -1, b = 0, c = 1

Therefore, y = ax^2 + bx + c turns into y = -1x^2 + 0x + 1 which simplifies to y = -x^2 + 1

------------

The last thing to do is plug x = 2 into this equation and simplify

y = -x^2 + 1

y = -2^2 + 1

y = -4 + 1

y = -3


3 0
3 years ago
23. Tara is driving 30 miles per hour. How long will it take her to travel 60 miles?
lys-0071 [83]

Answer:

2 hours

Step-by-step explanation:

30×1=30

30×2=60

4 0
3 years ago
HELP PLEASE!!!
lbvjy [14]

Answer:

Create equivalent expressions in the equation that all have equal bases, then solve for  

x

.

Exact Form:

5/3

Decimal Form:

x

=

1.6

Mixed Number Form:

x

=

1  2/3

7 0
3 years ago
Read 2 more answers
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