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8090 [49]
3 years ago
7

(x-19)/2=(x-7)/1step by step please ​

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

X=-5

Step-by-step explanation:

Since anything divided by one is still that number, then (x-7)/1 becomes x-7. So our equation now looks like:

(X-19)/2=(x-7).

Multiplying both sides by 2, we get

X-19=2x-14

Adding 19 to both sides:

X=2x+5

Subtract 2x from both sides:

-x=5

Multiplying both sides by -1, we get:

X=-5

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253 - 17 X3<br> 85 + 52 - 36
julia-pushkina [17]

Answer:

253-17*3 = 253-51 = 202

Step-by-step explanation:

85+52-36 = 147-36 = 111

4 0
3 years ago
Nick and his cousin Sara have the same birthday, but Nick is four years older than Sara. Let the variable X relresent Nick's age
Ronch [10]

Answer:

Let X represent Nick's age and Y represent Sara's age.

Then, it is given that: Nick is four years older than Sara.

We write the statement as:

X=4+Y

or Y=X-4

The only ordered pairs (X,Y) which satisfy the equation are: (0,-4) and (4,0) as you can see in the graph also.

In the graph X axis represents the age of Nick's age and Y-axis represent the age of Sara's age and the line Y=X-4 represents the relationship between the age of both.



6 0
3 years ago
What is the perimeter of triangle DEF
LuckyWell [14K]
Remember that A squared plus B squared equals C squared.

Since sides F_D and D_E are both 3, the answer cannot be 4.2 or 2.4.

SO basically you just add 3 + 3 = (The side F_E, which you can get by putting numbers in the formula), you should get your answer.

3² + 3² = Line EF²
9 + 9 = Line EF²
18 = Line EF²
√18

You get the idea. Hope this helps!
7 0
3 years ago
Read 2 more answers
Please help me find DOMAIN/RANGE and the EQATION
kaheart [24]

Answer:

domain:

( -  \infty , \infty )

range:

( -  \infty ,4]

equation:

y =  - 2(x - 3) {}^{2}  + 4

Step-by-step explanation:

domain is all X values and the X values will extent till infinity in both negative and positive direction, the range is all y values and the y value will go from negative infinity all the way to 4, where the graph stops.

4 0
3 years ago
Select the correct answer. What is the factored form of this expression? 216p^6+1
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Answer:

adad

Step-by-step explanation:

awddf

6 0
3 years ago
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