Please answer this question.1m of ribbon costs £3.20. find the cost of 1 and 1/4 m

Answers

Answer 1

Answer: $\begin{array}{ccc}1m&-&\£3.20\n\n1(1)/(4)m&-&x\end{array}\n-------------\nmultiply\ on\ the\ cross\n-------------\n1\cdot x=1(1)/(4)\cdot3.20\n\nx=1.25\cdot3.20\n\nx=4\n\nAnswer:\£4.00$

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Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute. Which of the following piecewise functions represents charges based on Andrew's cell phone plan?

Answers

Answer:

$f(x)=\left\{\begin{array}{l}19,\ \ x\le 300\n \n19+0.39(x-300),\ \ x>300\end{array}\right.$

Step-by-step explanation:

Andrew has a cell phone plan that provides 300 free minutes each month for a flat rate of $19. For any minutes over 300, Andrew is charged $0.39 per minute.

Let x be the number of minutes Andrew uses per month and f(x) be the charges based on Andrew's cell phone plan.

If $x\le 300,$ then $f(x)=19.$

If $x>300,$ then first 300 minutes are free and each minute of next (x-300) minutes costs $0.39, therefore

$f(x)=19+0.39(x-300).$

Hence,

$f(x)=\left\{\begin{array}{l}19,\ \ x\le 300\n \n19+0.39(x-300),\ \ x>300\end{array}\right.$

Answer:

19, x≤ 300

19+.39(x-300), x>300

Step-by-step explanation:

I just did this quiz

Explaining How to Sve an ea
What should you do to solve the equation?
45 = x + 38
O Subtract 38 from both sides.
O Add 38 to both sides.
O Subtract 45 from both sides.
O Add 45 to both sides.

Answers

You subtract 38 from both sides

Answer:

Subtract 38 from both sides.

Step-by-step explanation:

THAT DA ANSWER

Eric has saved $18,300 toward a down payment on a house. He makes a salary of $59,750 a year. What is the maximum he could afford to borrow to buy a house?a) $90,500
b) $101,200
c) $119,500
d) $137,800

Answers

i think its b, i hope this is the rigth answer this was a little tough...

Find the distance between the two points and round to the nearest tenth. (-2,2) and (3,-5)

Answers

Answer:

8.6 I think

Step-by-step explanation:

d=√((x_2-x_1)²+(y_2-y_1)²)

A belt runs a pulley of radius 8 inches at 60 revolutions per minute. a) Find the angular speed in radians per minute. b) Find the linear speed in inches per minute.