Multiplication negatives
Josh says that (4)(-7)(-1) is equal to (4)(7). Evangelina says (4)(-7)(-1) is equal to (-28)(-1) . Who is correct? Explain your reasoning.
Correct answer:
You need to know the following knowledge to solve this word math problem:
Grade of the word problem:
Related math problems and questions:
- Sarah 2
Sarah noticed that the temperature went from 20 degrees and dropped to -10 degrees. Sarah says that the change in temperature is -30 degrees, while her friend Kenya says that the temperature change is 10 degrees. Who is correct? Explain your reasoning - Cody states
Cody states that 1/4 + ( - 6/8 ) = 1 whole, while Eddie says that it is - 1/2. Who is correct? Justify your answer and explain your thinking. - Jimmy 3
Jimmy says 2 x 2.3 = 46 Tamara says 2 x 2.3 = 4.6 Who is right? And why? Explain your answer in sentence form. - Humans
Humans exploring space have left behind bags of trash, bolts, gloves, and pieces of satellites. Let's say there are currently about 5,000,000 pounds of litter in orbit around Earth. Jenny says that this amount using number names is five billion. Is J - The triangle 6
The triangle has an area of 7 ⅞ cm² and a base of 5 ¼ cm. What is the length of h? Explain your reasoning. - The track 2
The track team is trying to reduce their time for a relay race. First, they reduce their time by 2.1 minutes. Then, they are able to reduce that time by 1/10. If their final time is 3.96 minutes, what was their beginning time? Show or explain your reasoni - Equivalent expression
Pablo rewrites the expression 8y-24 as 8(y-3). Hana rewrites 8y-24 as 2(4y-12). Are Pablo's and Hana's expressions each equivalent to 8y-24? Explain your reasoning. - Q10 - investigate
A nutritionist who investigates fruits reported that the average weight of a raspberry is 4.4 g with a standard deviation of 1.28 g. What is the probability that a randomly selected raspberry would weigh less than 3.1 grams? Let X represent the weight of - Average grade
Find the average grade of Nika: 87.3 86.4 92.5 94.6 95.8 Using the Honors Guide, Is it correct that Nika's rank is Second Honor? Explain your answer. Lowest Grade Average ; Rank 90-92; First Honor 88-90; Second Honor 85-88; Achiever - Patsy
Patsy makes pillows. She needs 232 inches of trim for the edging. Trim costs $5.50 for a 3-yard spool or $1.10 per foot. What is the least amount Patsy can spend to get the trim she needs? Explain your reasoning. - Isosceles triangle 9
There is an isosceles triangle ABC where AB= AC. The perimeter is 64cm, and the altitude is 24cm. Find the area of the isosceles triangle. - Andy and Mike
Mike and Andy are each reading the same book. Mike read 2/4 of the book on Tuesday and 1/3 of the book on Wednesday. Andy read 1/2 of the book on Tuesday and 1/5 of the book on Wednesday. Andy says that altogether he read more of the book on Tuesday and W - Peter's calculation
Peter wrote the following: 7 1/4 - 3 3/4 = 4 2/4 = 4 1/2 . Is Peter's calculation correct? Using words (math vocabulary) and numbers to explain why he is correct or incorrect. - Math test
Brayden was solving some math problems for the math team. He answered two math problems. Matthew answered 3. John answered one. Matthew is 1/2 times as many. Brayden said 2/6. Is he correct? Why or why not? Be sure to explain your answer. - Randy
Randy solved the following problem: 7/8 + 9/16. He said: I can add 7 and 9 to get 16 and add 8 and 15 to get 23. The answer is 16/23. Is randy correct? Explain. - Brooke
Brooke divided 2/3 by 1/6 and got 1/9. Her classmate told her that she wasn't correct. What do you think went wrong with Brooke's solution? Explain your answer in 2 - 3 sentences. - Garrett
Garrett and Jeffrey are planning a treasure hunt. They decide to place a treasure at a point that is a distance of 5 units from the x-axis and three units from the y -axis. Jeffrey places a treasure at point J at coordinates (5,3), and Garrett places one