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brilliants [131]
3 years ago
8

Find the two numbers whose sum is54 and whose difference is 4

Mathematics
2 answers:
Andrew [12]3 years ago
7 0
Sum of 54: X + Y = 54
Difference is 4: X - Y = 4

Solve for one variable first.

X = 4 + y (rewritten from second equation)

Now plug into the first equation for x

4 + y + y = 54
4 + 2y = 54 (subtract 4)
2y = 50 (divide by 2)
Y = 25

Now use Y to solve for X

X - 25 = 4 (add 25 on each side)
X = 29
harkovskaia [24]3 years ago
4 0

Answer: I can not see the picture

Step-by-step explanation:

can you show it?

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antiseptic1488 [7]

The value of x is 35° and the value of y is 72.5°

Hope this helps! If you have any more questions or need any further explanation then please comment down below or message me! Good luck!

3 0
3 years ago
Which polynomial identity will prove that 49-4=45
goldfiish [28.3K]
Consider the polynomial identity (difference of squares):
(x+y)(x-y) = x² - y²

Set x =7 and y = 2 to obtain
(7+2)*(7-2) = 7² - 2²
9*5 = 49 - 4
45 = 49 - 4
This is the result required, obtained by using difference of squares.

Answer: Difference of squares.
3 0
3 years ago
Jackie and Diane went to dinner at a nice restaurant and ordered seafood and salads. The following is their check:
nikklg [1K]

Answer:

tmr

Step-by-step explanation:

6 0
3 years ago
(01.02 LC)Simplify 9 − (−4).
levacccp [35]

Answer:

13

Step-by-step explanation:

When we subtract a negative, it is like adding

9 -  -4

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13

3 0
3 years ago
Read 2 more answers
Moises is determining the solution to the system of equations that is show below. Equation representing line A: mc018-1.jpg Poin
dimulka [17.4K]
Answer:
equation of line is:
y = -2x - 6

Explanation:
The general form of the line is:
y = mx + c
where:
m is the slope of the line
c is the y-intercept

(a) getting the slope of the line:
slope of the line is calculated using the following rule:
slope of line (m) = (y2-y1) / (x2-x1) = (-24--12) / (9-3) = -2
The equation now becomes:
y = -2x + c

(b) getting the y-intercept:
The two given points belong to the line. Therefore, to get the y-intercept, we will use one of the points and substitute in the equation and solve for c.
I will use the point (3,-12)
y = mx + c
-12 = -2(3) + c
-12 = -6 + c
c = -12 + 6
c = -6

Based on the above, the equation of the line is:
y = -2x - 6

Hope this helps :)
6 0
3 years ago
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