1. -24 x 5 =?
A. -100
B. -120****
C. 120
D. 90
2. What is the product of -8 and -7?
A.56
B.-56****
C.63
D.-63
3. Which of the following has a product of -40?
A. (2)(20)
B.(-4)(-10)
C.(8)(-5)****
D.(-7)(60)
4. Which integer represents the total change in altitude of an airplane descending 5 feet every second for 15 seconds?
A.65
B.75
C.-75
D.-65
5. Find the product.
10 x -5 x -4 x 3 = ?
A.-600
B.-500
C.500
D.600****
help with number 4.
Lesson 5: Multiplication of Integers Math 6 B Unit 4: Integers
1.b
2.a
3.c
4.c
5.d
plz only use to check your answers
#1. ok
#2 (-7)(-8) = +56
#3. ok
#4. (-5ft/s)(15s) = -75 ft
distance = speed * time
#5. ok
number 4 is c I think
oh yea 6th grade
To find the total change in altitude of an airplane descending 5 feet every second for 15 seconds, you can multiply the rate of descent (-5 feet/second) by the time (15 seconds).
So, the calculation would be: -5 feet/second * 15 seconds = -75 feet.
Therefore, the correct answer is option C: -75.