3 years ago

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

Mathematics

1 answer:

Gnom [1K]3 years ago

6 0

Answer:

i would say b

Step-by-step explanation:

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An employee worked 36 hours last week. This week, she worked 15% less hours. How many hours did she work this week?

Lelu [443]

Answer: 30.6

Step-by-step explanation: she worked 30.6 hours be cause if you think 36 of 15% it is 30.6 hours she worked

5 0

2 years ago

Please help! I also don’t understand a). My friend did it for me when I wasn’t looking so if you could explain that too, that’s

Rzqust [24]

Answer:

3.5 n

Step-by-step explanation:

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2 years ago

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Find the Perimeters of the rectangle whale degonal is 5cm and lenght is 4cm

amid [387]

Answer:

Step-by-step explanation:

First, we have to get the breadth value.

By the pythagoras theoreom,

Diagonal²=length² + breadth²

breadth = √( Diagonal²- length²)

breadth = √( 5² - 4²)

breadth = √9

breadth= 3

Perimeter of a rectangle = 2x ( length + breadth)

= 2 x ( 4 + 3)

= 2 x 7

= 14

3 0

3 years ago

Find dy/dx by implicit differentiation and evaluate the derivative at the given point.xy = 12, (-4, -3)

mojhsa [17]

Xy=12
xdy/dx + y = 12
xdy/dx = 12 - y
dy/dx= (12-y) /x
dy/dx | x=-4 ,y=-3 = (12-(-3))/(-4)
= (12+3)/-4 = -15/4

4 0

3 years ago

Write an equation of the line that passes through the point (2,3) with slope 3.

djyliett [7]

Answer:

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

We have the slope m = 3, and the point (2, 3).

Put the value of slope and the coordinates of the given pint (x = 2, y = 3) to the equation of a line:

$3=3(2)+b$

$3=6+b$ subtract 3 from both sides

$-3=b\to b=-3$

Finally:

$y=3x-3$

5 0

3 years ago