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2 years ago

11

An internet site sells 75 feature type cell phones. The ratio of the number of smartphones to the number of feature phones is 3:

5. How many cell phones are smart phones?

1 answer:

Alex777 [14]2 years ago

4 0

There are 45 smart phones

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Compare 1/5 and 0.201

Scrat [10]

$We\ convert\ \frac{1}{5 }\ into\ decimal\\\\
\frac{1}{5}=\frac{20}{100}=0,2\\\\\
Now\ compare\ \frac{1}{5}=0,2\ and\ 0,201:\\\\
0,201>\frac{1}{5}$

8 0

3 years ago

What is the nth term of the sequence? 4, 2, 0, –2, ..

tatuchka [14]

' n ' the 'n'th term

1    4
2    2
3    0
4 -2 .

In general, the 'n'th term of the sequence is A(n) = 6 - 2n .

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3 years ago

Solve 2x2 - 6x = -8.

erma4kov [3.2K]

Answer:

x=2

Step-by-step explanation:

8 0

3 years ago

Someone solve this please.

Archy [21]

Answer:

16x+2

Step-by-step explanation:

Perimeter- Length+width x2

(6x+4+2x-3)2

(8x+1)2

16x+2

6 0

2 years ago

Samantha ran on a fitness track for 20 min, and then walked for 15 min. Her running rate was 230 ft per minute faster than her

Mnenie [13.5K]

Answer:

560 ft/min

Step-by-step explanation:

Let r represent Samantha's running rate in feet per minute. Then r-230 is her walking rate. We can use the relation ...

distance = speed × time

to write an equation for the total distance Samantha went.

20r + 15(r -230) = 16150

35r - 3450 = 16150 . . . . eliminate parentheses, collect terms

35r = 19600 . . . . . . . . . . add 3450

r = 560 . . . . . . . . . . . . . . divide by the coefficient of r

Samantha ran 560 feet per minute.

5 0

3 years ago