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Musya8 [376]
3 years ago
9

(Fractions) Rewrite the expression using fithteenths. 2/5 - 1/3 =

Mathematics
1 answer:
Anastasy [175]3 years ago
6 0

Answer:

1/15

Step-by-step explanation:

2/5-1/3=6/15-5/15=1/15

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Write an explicit formula for a_n, the nth term of the sequence 4, -20, 100, ...
saw5 [17]

Answer:

a_{n} = 4 (-5)^{n-1}

Step-by-step explanation:

There is a common ratio r between consecutive terms , that is

r = - 20 ÷ 4 = 100 ÷ - 20 = - 5

This indicates the sequence is geometric with nth term ( explicit formula )

a_{n} = a₁ (r)^{n-1}

where a₁ is the first term and r the common ratio

Here a₁ = 4 and r = - 5 , then

a_{n} = 4 (-5)^{n-1}

3 0
3 years ago
Carol is one-sixth of an inch taller than dave.dave is fifty-eight and a half inches tall.how tall is carol
katrin2010 [14]
C=1/6 of x
D=55/1/2
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3 years ago
Wich of the following expressions are equivalent to - 2/3 ? select all that apply​
MrRa [10]

Answer:

A, C and E

Step-by-step explanation:

Simplify each expression to lowest terms. Equivalent expressions will be any expressions which are equal after simplifying to lowest terms.

A. -1/9 * 6 = -6/9 = -2/3

B. -15/10 = -3/2

C. 12/-18 = -2/3

D. -3/4 * 2/1 = -6/4 = -3/2

E. -8/9 * 3/4 = -24/36 = -2/3

7 0
3 years ago
You and a friend of your choice are driving to the island of chincoteague in Virginia in two different cars.You are traveling 65
shutvik [7]

Answer:

  2.5 hours after you start

Step-by-step explanation:

You are driving 14 mph faster than your friend, so will make up the 35 mile head start in 35/14 = 2.5 hours. You will meet 162.5 miles from your starting location. If that is Philadelphia, you will have 37.5 miles to go.

You will catch up after 2.5 hours of driving.

_____

You will arrive about 9 1/2 minutes ahead of your friend.

3 0
3 years ago
Given the following definitions: U = {1, 2, 3, 4, 5, 6, 7} A = {1, 2, 4, 5} B = {1, 3, 5, 7} How many elements are in A' ∪ B ?
atroni [7]

Answer:

A'∪B has no elements in it

Step-by-step explanation:

6 0
3 years ago
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