Ask question

Ask question

All categories

2 years ago

9

Danny had 20 minutes to do a three-problem quiz. He spent 9 1/4 minutes on question A and 5 4/5 minutes on question B. How much

time did he have left for question C?

1 answer:

Travka [436]2 years ago

6 0

Answer:

4 19/20

Step-by-step explanation:

9 1/4 + 5 4/5 = 15 1/20

20- 15 1/20 = 4 19/20

You might be interested in

Ben has a cell phone plan that provides 200 free minutes each month for a flat rate of $39. For any minutes over 200, Ben is cha

faltersainse [42]

Answer:

$\left\{\begin{matrix}39 & x\leq 200\\ 39+(x-200)\times 0.35 & x>200\end{matrix}\right.$

Step-by-step explanation:

We are given that Ben has a cell phone plan that provides 200 free minutes each month for a flat rate of $39.

We are also told that For any minutes over 200, Ben is charged $0.35 per minute.

let x be the minutes used each month

So, if $x\leq 200$

So, coat will be $39

If $x>200$

So, Ben is charged $0.35 per minute

So, when $x>200$

So, charge = $39+(x-200)\times 0.35$

So, the piecewise functions accurately represents charges based on Ben's cell phone :

$\left\{\begin{matrix}39 & x\leq 200\\ 39+(x-200)\times 0.35 & x>200\end{matrix}\right.$

4 0

3 years ago

Read 2 more answers

Which phrase matches the algebraic expression below? (1 point)<br> 3(x + 7) + 10

svp [43]

Answer:

Add 10 to three times the value of x minus 7.

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Which numbers are perfect squares? Check all that apply.

blagie [28]

Answer:

16, 100, 1,

Step-by-step explanation:

A perfect square is a number multiplied by itself to get that number. So 16 would be 4*4 and 100 would be 10*10, then 1 would just be 1*1

7 0

2 years ago

Read 2 more answers

Find the percent decrease. Round to the nearest percent.<br><br><br> From 90°F to 70°F

Goryan [66]

Answer:

22

Step-by-step explanation:

90*x = 70

x = 7/9

x = 78%

100-78 = 22

3 0

2 years ago

How do you write 30 dollars in words?

Dimas [21]

$30.00 in words: thirty dollars.

7 0

2 years ago