All categories

4 years ago

The original price of a kind of phone is $360. Then its price

Mathematics

1 answer:

serious [3.7K]4 years ago

3 0

Answer:

$335

Step-by-step explanation: You do $5 times 5 weeks and you get 25, then subtract from $360

You might be interested in

Which figure show line segment

Veronika [31]

Answer:

the first one , its a straight line and has no arrow

3 0

3 years ago

No step by step answers or links

inysia [295]

Answer:

1. k = 15

2. d = 20

3. n = 3

6 0

3 years ago

Simplify the expression using properties of operations. (−r−5)−(−2r−4)

Pachacha [2.7K]

Answer:r-1

Step-by-step explanation:

(-r-5)-(-2r-4) Or (-r-5)-(-2r-4)

-r+-5+2r+4. -r-5+2r+4

r-1 r-1

You bring down the first Parentheses Then have to multiply the (implied 1) -1•-2=2 and -1•-4=4 and do the math regularly

8 0

3 years ago

Suppose you choose a team of two people from a group of n > 1 people, and your opponent does the same (your choices are allow

jonny [76]

Answer:

The number of possible choices of my team and the opponents team is

$\left\begin{array}{ccc}n-1\\E\\n=1\end{array}\right i^{3}$

Step-by-step explanation:

selecting the first team from n people we have $\left(\begin{array}{ccc}n\\1\\\end{array}\right) = n$ possibility and choosing second team from the rest of n-1 people we have $\left(\begin{array}{ccc}n-1\\1\\\end{array}\right) = n-1$

As { A, B} = {B , A}

Therefore, the total possibility is $\frac{n(n-1)}{2}$

Since our choices are allowed to overlap, the second team is $\frac{n(n-1)}{2}$

Possibility of choosing both teams will be

$\frac{n(n-1)}{2} * \frac{n(n-1)}{2} \\\\= [\frac{n(n-1)}{2}] ^{2}$

We now have the formula

1³ + 2³ + ........... + n³ = $[\frac{n(n+1)}{2}] ^{2}$

1³ + 2³ + ............ + (n-1)³ = $[x^{2} \frac{n(n-1)}{2}] ^{2}$

= $\left[\begin{array}{ccc}n-1\\E\\i=1\end{array}\right] = [\frac{n(n-1)}{2}]^{3}$

4 0

4 years ago

PLZ HELP!!!!

lawyer [7]

Rise over run is 7 over 2 so 7/2 is the slope

4 0

3 years ago

Read 2 more answers