Simply write what you read!
"<span>Write an expression"
This means no equal sign.
"for the calculation 5 times the number 25"
5 x 25
"and then subtract the quotient of 14 and 7"
- 14/7
Combine them together and you get:
5 x 25 - 14/7
Remember to use your Order of Operations, aka PEMDAS
You would multiply and divide the numbers first, and then subtract the product (answer to a multiplication problem) and quotient (answer to a division problem)!</span>
To solve for A, multiply each side by 9A to get rid of the fraction, so then 3 = 81(9A) --> 3 = 729A --> 3/729 = 1/243
Answer:
Reflection; Translation; Dilation; Similar
Step-by-step explanation:
Figure 1 is reflected because it is the same thing, just flipped, like a mirror.
Figure 2 is translated because it is the same exact shape, just moved
Figure 3 is dilated because it is the same thing, but shrunken down
Figure 1 is similar because it is not the same exact thing, but just a similar shape of it.
Hope this helps
Let cost of Emma's phone = x
Given that cost of Sophie's phone = 640
Then ratio of their phones cost will be x:640 or x/640
Given that ratio of their phones cost is 7:8 or 7/8
So both ratios will be equal.
x=560
So the new ratio of the cost of their phones will be 560:640
Now we have to find about how much should the prices of their phones decrease in order to have a ratio of 9:11.
So let that decreased amount is k then we will get equation :
11(560-k)=9(640-k)
6160-11k=5760-9k
6160-5760=11k-9k
400=2k
200=k
Hence final answer is prices of their phones should decrease by 200 in order to have a ratio of 9:11.