Answer:
Equivalent expression for n x a = a+ a+a+a....n times
Step-by-step explanation:
Given: Expression for n x a .
To find : Write an equivalent expression for n x a using only addition.
Solution : We have given that n x a .
Here, we can say Sum of a is n times.
We can rewrite it n x a = a+ a+a+a....n times.
Example : 3 x 2 = 2 +2+ 2.
6 = 6 ( true)
Therefore , equivalent expression for n x a = a+ a+a+a....n times.
Answer:
It will take 12 weeks to pay for the DVD players.
Step-by-step explanation:
Given in the question that,
total cost of DVD bought by Adela = $210
Step 1
Adela makes a down payment of $30
$210 - $30 = $180
Remaining cost = $180
Step 2
Adela pays $15 each week
$15 = 1 week
$180 = ?
$1 = 1 week/15
$180 = 180/15 week
= 12 weeks
If there is a 20% discount of a 250$ microwave, then price will be 200$. That is because 20% of 250 is 50, so you subtract 50 from 250, and get your answer: 200$.
Hope I was able to help. If you need any more help, please let me know and I will assist you.
AD = BC ----> Parallel lines
AC = AC -----> Reflexive property
<A = <C -----> Congruent angles
<D = <B -----> Congruent angles
Given:
In given Δ RST,
RS = 9, ST = 8 and ∠S = 110°
To find the value of another side RT (s).
Formula
By cosine law we get,
Now,
Putting,
b=9, c=8, A = 110° and a=s we get,
or, 
or, 
or, 
or, 
or, 
Hence,
The value of s is 14. Option C.
