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kari74 [83]
3 years ago
15

Solve this expression 5(4x-13).

Mathematics
2 answers:
vlabodo [156]3 years ago
5 0
The expression can be simplified down to 20x-65
aleksklad [387]3 years ago
3 0
5(4x - 13)

Simplify.

(5 · 4x) + (5 · -13)

Simplify.

20x + (-65)

Get rid of the parenthesis.

20x - 65

~Hope I helped!~
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29
kramer

Answer: C (1.25, 10.25)

Step-by-step explanation:

4 0
3 years ago
Help pls Use the substitution method to solve the system of equations. Choose the
AURORKA [14]
If I’m using substitution the answer is A
6 0
3 years ago
The line l with equation x - 2y + 2 = 0 crosses the y-axis at the point P. The line
Sauron [17]

Answer:

Area of ΔPQR is 28 units²

Step-by-step explanation:

-P is the point with coordinates ( 0, y-intercept for line x-2y+2 =0)

-rearrange the equation in the point-slope form y=mx+b  to find the y coordinate of the point P( 0, b)

x-2y+2 = 0, subtract x and 2 from both sides

-2y = -x-2, divide by -2 both sides

y= (1/2)x +1 so b=1 and P (0, 1)

-Q  is the point with coordinates ( 0, y-intercept for line 3x+y -15 =0)

-rearrange the equation in the point-slope form y=mx+b  to find the y coordinate of the point Q( 0, b)

3x +y -15 =0, subtract 3x and add 15 to both sides

y= -3x +15 so b=15 and Q(0,15)

-R is the intersection of the two lines so is the solution of the system of equations y= (1/2)x +1 and y= -3x +15

(1/2)x +1 =  -3x +15, add 3x and subtract1

(1/2) x+3x = 15-1, combine like terms

(7/2)x = 14 , multiply both sides by 2

7x = 28, divide both sides by 7

x= 4

y= (1/2)x +1 = (4/2) +1 =3 so R(4,3)

- the area of ΔPQR is (base *height)/2

base= 15-1= 14

height = 4

A= (14*4)/2 = 14*2 = 28

6 0
3 years ago
A large cube has 5 layers, each with 5 rows of 5 small cubes. How many small cubes will the larger cube contain? Explain Please
boyakko [2]
25 because you have to multiply 5✖️5 which equals 25. 5 is the 5 layers and the other 5 for the 5 rows.
6 0
3 years ago
The _______________ of 25 equals 5. *
Fittoniya [83]
Square root.

5^2 = 25 so sqrt25 = 5
8 0
3 years ago
Read 2 more answers
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