Question
(Checking my answers!)
Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted.
m − 8
14(m − 8) **
9(m + 8)
112m
Two stores sell the same refrigerator for the same original price. Store A advertises that the refrigerator is on sale for 15% off the original price. Store B advertises that it is reducing the refrigerator’s price by $150. When Stephanie compares the sale prices of the refrigerator in both stores, she concludes that the sale prices are equal.
0.85p = p – 150
0.85(p – 150) = p
0.15p = p − 150 **
0.15p = p + 180
Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h. Car A traveled 22 mph faster than Car B.
(Not multiple choice!)
My answer is that Car A traveled 55 mph faster than Car B
In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.
How much money did they both have in their accounts in October?
(Not multiple choice!)
Having a hard time with this question..
Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted.
m − 8
14(m − 8) **
9(m + 8)
112m
Two stores sell the same refrigerator for the same original price. Store A advertises that the refrigerator is on sale for 15% off the original price. Store B advertises that it is reducing the refrigerator’s price by $150. When Stephanie compares the sale prices of the refrigerator in both stores, she concludes that the sale prices are equal.
0.85p = p – 150
0.85(p – 150) = p
0.15p = p − 150 **
0.15p = p + 180
Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h. Car A traveled 22 mph faster than Car B.
(Not multiple choice!)
My answer is that Car A traveled 55 mph faster than Car B
In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.
How much money did they both have in their accounts in October?
(Not multiple choice!)
Having a hard time with this question..
Answers
Steve
#1 ok
#2 - the discount was 15%, meaning the actual price was 85%, so
0.85p = p – 150
#3
WHAT? They just told you that A traveled 22 mph faster than B!
If car B has speed s, then
2.4(s+22) = 4s
This will give you B's speed.
The distance traveled was 4s
#4
If the amount at the end of October was x, then we have
x + 120 = 1.20x
#2 - the discount was 15%, meaning the actual price was 85%, so
0.85p = p – 150
#3
WHAT? They just told you that A traveled 22 mph faster than B!
If car B has speed s, then
2.4(s+22) = 4s
This will give you B's speed.
The distance traveled was 4s
#4
If the amount at the end of October was x, then we have
x + 120 = 1.20x
Anonymous
In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.
How much money did they both have in their accounts in October?
How much money did they both have in their accounts in October?