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3 years ago

Courtney save $6.18 each week. How much will Courtney have saved after 14 weeks?

1 answer:

n200080 [17]3 years ago

3 0

$86.52

6.18•14=86.52

I hope this helps and have a great day (Also brainliest would be appreciated but you don’t have to) :)

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I need someone to solve this math problem by elimination for me. 3X+2y=6 -x+y=-2

FinnZ [79.3K]

3x + 2y = 6 ⇒ -3x - 2y = -6
-x + y = -2 ⇒ -3x + 3y = -6
 -5y = 0
 -5 -5
 y = 0
 3x + 2(0) = 6
 3x + 0 = 6
 - 0 - 0
 3x = 6
 3 3
 x = 2
 (x, y) = (2, 0)

8 0

2 years ago

luis makes a 4% commision on his sales in a sporting goods store. For a $70 purchase, how much commision does Luis earn?

Fiesta28 [93]

He made $2.80 because if you multiply 70 by .04 it’s 2.8

4 0

3 years ago

An airplane needs to reach a velocity of 203.0 km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary

Aliun [14]

Answer:

1.59 m/s²

Step-by-step explanation:

Acceleration = change in Velocity over time. Mathematically it is represented as Δv/Δt

Given values in the question:

Final velocity 203.0 km/h which is equal to (203/3.6)m/s = 56.39 m/s
distance 2000 m
Initial velocity is 0 m/s

To use the equation for acceleration time is needed.

velocity= distance/time

(203/3.6) = 2000/time mltiplying both sides by time

(203/3.6) x time = 2000 making time subject of the formula

time = 2000/(203/3.6)

time = 35.47 seconds

Substituting into the acceleration equation

acceleration =Δv/Δt

=(56.39- 0)/35.47

= 56.39/35.47

=1.59 m/s²

6 0

3 years ago

A liter of water contains about 3.35•10^25 molecules. A certain river discharges about 2.3•10^7 litter of water every second. Ab

dimaraw [331]

Answer:

Jaylynn draws a hen with a scale of

22 units on her graph paper represents

6cm6, space, c, m. The hen is

1616 units tall in the drawing.

A hen on graph paper. A 16-unit long line is labeled, "height." A 2-unit long scale is labeled, "6 centimeters."

6 cmheight

What is the height, in

cmc, m, of the actual hen?

Step-by-step explanation:

7 0

3 years ago

Please. Answer Fast! Use composition to determine if G(x) or H(x) is the inverse of F(x) for the

s344n2d4d5 [400]

Answer:

A. H(x) is an inverse of F(x)

Step-by-step explanation:

The given functions are:

$F(x)=\sqrt{x-2}$

$G(x)=(x-2)^2$

$H(x)=x^2+2$

We compose F(x) and G(x) to get:

$(F\circ G)(x)=F(G(x))$

$(F\circ G)(x)=F((x-2)^2)$

$(F\circ G)(x)=\sqrt{(x-2)^2-2}$

$(F\circ G)(x)=\sqrt{x^2-4x+4-2}$

$(F\circ G)(x)=\sqrt{x^2-4x+2}$

$(F\circ G)(x)\ne x$

Hence G(x) is not an inverse of F(x).

We now compose H(x) and G(x).

$(F\circ H)(x)=F(H(x))$

$(F\circ H)(x)=F(x^2+2)$

$(F\circ H)(x)=\sqrt{x^2+2-2}$

We simplify to get:

$(F\circ H)(x)=\sqrt{x^2}$

$(F\circ H)(x)=x$

Since $(F\circ H)(x)=x$ , H(x) is an inverse of F(x)

3 0

3 years ago