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Norma-Jean [14]

3 years ago

9

You buy 2 pairs of shoes in a sale. You pay the full price of $48 for the first pair, and you get the second pair for half this

price. What fraction of the full price do you pay for 2 pairs of shoes?

1 answer:

KonstantinChe [14]3 years ago

6 0

3/4...........................................................................

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in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

$a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d$

$a_n=a_1+(n-1)d$

$33=8+(n-1)d$

$21=(n-1)d$

$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

$\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123$

Case 4: $n-1=7$ and $d=3$ . But

$\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123$

8 0

3 years ago

Pooopie ok or no ok?

Helga [31]

Answer:

It's Ok

Step-by-step explanation:

Mark me brainliest :>

6 0

2 years ago

Read 2 more answers

You call the pizza store and find out that each pizza has 12 slices. you expect 16 people to come, and you estimate each person

zysi [14]

Nx/y=z
3(16)/12=z
3x16=48/12=4
z=4

4 0

3 years ago

Jamie and his two brothers divided a package of 125 toy cars equally. About how many cars did each of them receive

sp2606 [1]

41 and there are two left

8 0

3 years ago

What are the solution of the equation 2|×+7|-3=5

marin [14]

Answer:

x = -3

Step-by-step explanation:

2(x + 7) - 3 = 5 (given)

2x + 14 - 3 = 5 (Distributive Property)

2x + 14 = 8 (Addition Property of Equality)

2x = -6 (Subtraction Property of Equality)

x = -3 (Division Property of Equality)

6 0

3 years ago