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stepan [7]
3 years ago
11

Scott was considering the equation 5 - x = 12. He said, "That seems

Mathematics
1 answer:
den301095 [7]3 years ago
7 0

Answer:

-7

Step-by-step explanation:

5 - x = 12  \\ 5 - 12 = x \\   - 7 = x

it is possible because x is just a letter representing the unknown nos

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- Find the coordinates of A if B(0,5.5) is the midpoint of AC and C has coordinates<br><br> (-3,6).
emmainna [20.7K]

Given:

Coordinates of point C are (-3,6).

Point B(0,5.5) is the midpoint of AC.

To find:

The coordinates of A.

Solution:

Let the coordinates of point A are (a,b).

Formula for midpoint:

Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)

Using the above formula, the midpoint of A(a,b) and C(-3,6) is

B=\left(\dfrac{a+(-3)}{2},\dfrac{b+6}{2}\right)

(0,5.5)=\left(\dfrac{a-3}{2},\dfrac{b+6}{2}\right)

On comparing both sides, we get

\dfrac{a-3}{2}=0

a-3=0

a=3

and,

\dfrac{b+6}{2}=5.5

b+6=11

b=11-6

b=5

Therefore, the coordinates of point A are (3,5).

8 0
4 years ago
54 is what percent of 24? Enter your answer in the box.
jeka94

Answer:

12.96

Step-by-step explanation:

54 percent *24

= (54/100)*24

= (54*24)/100

= 1296/100 = 12.96

Now we have: 54 percent of 24 = 12.96

Question: What is 54 percent of 24?

We need to determine 54% of 24 now and the procedure explaining it as such

Step 1: In the given case Output Value is 24.

Step 2: Let us consider the unknown value as x.

Step 3: Consider the output value of 24 = 100%.

Step 4: In the Same way, x = 54%.

Step 5: On dividing the pair of simple equations we got the equation as under

24 = 100% (1).

x = 54% (2).

(24%)/(x%) = 100/54

Step 6: Reciprocal of both the sides results in the following equation

x%/24% = 54/100

Step 7: Simplifying the above obtained equation further will tell what is 54% of 24

x = 12.96%

Therefore, 54% of 24 is 12.96

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3 years ago
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Veseljchak [2.6K]

Answer:

Step-by-step explanation:

(23,0)

23 computers

the they make 0 dollars

6 0
3 years ago
5a - 2b -3 + 2b - 6a simplify the expression and then write an equivalent expression. Please anyone help me it's my first questi
svet-max [94.6K]

Step-by-step explanation:

simplify the expression into like terms

so 5a-2b-3+2b-6a (add all a and b together)

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The cost of a tablet after a 20% discount can be represented by the expression t-0.2t. Simplify the expression
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0.8t

Steps are on paper.

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