128k views
1 vote
(Please help with these) (Im stuck on these)

1.Which expression is equivalent to 1/4y−1/2 ?
A.−1/4(y−1/2)
B. 1/4(y−2)
C. 1/4(y−1/2)
D.−1/4(y−2)

2.What is the solution set?
​5.5x+15.5>32 ​
Enter your answer in the box.


3.What is the value of x?

Enter your answer in the box.
(I pasted the image)


4. Matteo plans to deposit some of his savings in a savings account. The account will pay 3% interest per year. His grandmother tells him she will pay an additional 3% to the account if Matteo keeps the money in the bank for the entire year. Let d represent the amount of Matteo's deposit. Which expressions can he use to calculate the amount of money he will have after one year?

Select each correct answer.

[] 1.06d
[] d+0.06d
[] d+0.03d+0.03d
[] 0.94d


There it goes. PLEASE answer all but if you cant, answer as much as you can ty soo much!!

(Please help with these) (Im stuck on these) 1.Which expression is equivalent to 1/4y-example-1
User Vyacheslav
by
8.1k points

2 Answers

3 votes
1 is B.
2 is x > 3
4 is d+0.06d

I don't know 3, but I'll ask it for you, since you don't have many points.
User Dmitry Zaets
by
8.2k points
6 votes

Answer:

Q1. Option B

Q2. x>3

Q3. 62°

Q4. First three options are correct

Explanation:

Q1. Solving the given options one by one. We get,

A. -1/4(y-1/2) = -1/4y + 1/8

B. 1/4(y-2) = 1/4y - 1/2

C. 1/4(y−1/2) = 1/4y - 1/8

D.−1/4(y−2) = -1/4y + 1/2

So, Option B is correct answer.

Q2. Solving the given equation,

​5.5x+15.5>32

5.5x + 15.5 -15.5 > 32 -15.5

5.5x > 16.5

x > 3

Q3. Here, The third quadrant is of 90°

So, x = 90° - 28° = 62°

Q4. Since 3% of d = 0.03d

Also, Money given by bank + Money given by his grandmother

= 0.03d + 0.03d = 0.06d

So, total amount of money he get ater one year is d + 0.06d =1.06d

Hence, First three options are correct as 1.06d = d+0.06d = d+0.03d+0.03d

(Please help with these) (Im stuck on these) 1.Which expression is equivalent to 1/4y-example-1
User PeteAUK
by
8.6k points