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laiz [17]
3 years ago
14

Solve the system by substitution. y = 7x – 20 y = 2x

Mathematics
1 answer:
g100num [7]3 years ago
4 0

Answer:

x=4 y=8

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation

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Área and volume <br><br> Length: 19-1/2' and width 66-3/8'
goblinko [34]

Answer:

the area is -155/8

Step-by-step explanation:

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3 0
4 years ago
A =5, b = 12 c =?<br><br><br><br> Pls help I don’t know how to do this
nataly862011 [7]

Answer:

: Use the Pythagorean Theorem

{c}^{2}  =  {a}^{2}  +  {b}^{2}

{c}^{2}  =  {5}^{2}  +  {12}^{2}

{c}^{2}  = 25 + 144

{c}^{2}  = 169

c =  + 13

6 0
3 years ago
a blueprint has a scale of 1/8 in = 1 foot the drawing shows width of a window to be 3/4 inches wide what is the actual of the w
kobusy [5.1K]
6 Feet.

Divide the width of the window in the blueprint by the set scale, 1/8.
8 0
3 years ago
Select all the correct answers. <br> will mark brainliest for correct answer <br> pls take ur time
Daniel [21]

Answer:

I think it's B, C, E

4 0
3 years ago
Read 2 more answers
If s(x) = x – 7 and t(x) = 4x2 – x + 3, which expression is equivalent to (t*s)(x)
lesya [120]
S(x) = x - 7; t(x) = 4x² - x + 3

(t · s)(x) = (4x² - x + 3)(x - 7) = (4x²)(x) + (4x²)(-7) - (x)(x) - (x)(-7) + (3)(x) + (3)(-7)

= 4x³ - 28x² - x² + 7x + 3x - 21 = 4x³ - 29x² + 10x - 21
8 0
3 years ago
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