Answer:
the sum of two negative integers is a negative integer. true
the sum of two positive integers is a positive integer. true
to find the sum of a positive and a negative integer take the absolute value of each integer and then subtract these values.
true
the additive inverse of any integer and its opposite is equal to 0. false
The sum of any integer and its opposite is equal to zero.
Answer:
0.4
Step-by-step explanation:
If the ratio of boys to girls in a class is 2:3, then
- there are 2x boys;
- there are 3x girls.
If there are 18 girls in the class, then
Thus, there are
boys;
girls;
students in total.
The probability of a boy being in the class is
Answer:
Step-by-step explanation:
x= -2
2x² - 5x + 6 = 2(-2)² - 5*(-2) + 6
= 2*4 + 10 + 6
= 8 + 10 + 6
= 24
Answer:
Step-by-step explanation:
Solve each equation and compare the solutions
1.
- 2(a - 1.1) = 5.8
- a - 1.1 = 5.8/2
- a - 1.1 = 2.9
- a = 2.9 + 1.1
- a = 4
2.
- (5/2)b - 2 3/4 = 7 1/4
- 2.5b = 7 1/4 + 2 3/4
- 2.5b = 10
- b = 10/2.5
- b = 4
Both a and b have same value
