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3 years ago

Jenny can type 1,200 words in just 15 minutes. How many words can she types in anhour?

Mathematics

1 answer:

seropon [69]3 years ago

7 0

She can type 4,800 words in one hour.

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3, 0, -3, 0, 3, 0 what's the pattern

Goshia [24]

The pattern is minus three, minus three, plus three , plus three and keep going like that

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4 years ago

Find the 100th and the nth term for each of the following sequences.80,140,200

Alina [70]

Answer

a(n) = 60n + 20

a(100) = 6020

Step-by-step explanation:

Given the following sequences

80, 140, 200

$\begin{gathered} \text{The given sequence is }80,\text{ 140, 200} \\ \text{Step 1: find the common difference} \\ \text{common difference= next term - previous term} \\ \text{Common difference = 140 - 80} \\ \text{Common difference = 60} \\ \text{common difference = 200 - 140} \\ \text{common difference = 60} \\ \text{Hence, the common difference is 60} \\ \text{The nth term of an arithmetic progression is} \\ a(n)\text{ = a + (n - 1) x d} \\ \text{where a = first term, n = no of terms, and d = common difference} \\ a(n)\text{ = 80 + (n - 1) x 60} \\ \text{open the parenthesis} \\ a(n)\text{ = 80 + 60n - 60} \\ a(n)\text{ = 60n + 80 - 60} \\ a(n)\text{ = 60n + 20} \\ \\ \text{ Find the 100th term} \\ \text{let n = 100} \\ a(100)\text{ = 60(100) + 20} \\ a(100)\text{ = 6000 +2}0 \\ a(100)\text{ = 6020} \end{gathered}$

7 0

1 year ago

Money all I really want is money 5+6x2=?

timofeeve [1]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Express 25% of 500<br>ahhh can't solve it

Vinvika [58]

Answer:

125

Step-by-step explanation:

25/100×500

25×5

125

Hope this helps you

6 0

3 years ago

X sqaured plus 4x plus 20 equlas 12x minus 5

skelet666 [1.2K]

Answer:

x² + 4x + 20 = 12x - 5

x² + 4x - 12x + 20 + 5 = 0

x² - 8x + 25 = 0

Δ = √b² - 4ac

= √(-8)² - 4×1×25

= √64-100

= √(-36)

x ∉ R

3 0

3 years ago

Read 2 more answers