Answer:
10.4^2 = 108.16
Step-by-step explanation:
10.4^2 = 10.4 * 10.4
10.4 * 10.4 = (10 * 10.4) + (0.4 * 10.4)
(10 * 10.4) + (0.4 * 10.4) = (104) + (4.16)
(104) + (4.16) = 108.16
Answer:
D
Step-by-step explanation:
3*(-7)=(-21)
Answer:
6
Step-by-step explanation:
1/2 = 0.5
2/5 = 0.4
60 × 0.5 = 30
60 × 0.4 = 24
30 + 24 = 54
60 - 54 = <u>6</u>
It says Sandeep has twice as much as Sonia. Thus, let Sandeep's amount be 2x and Sonia's amount be x.
Now, together they have 150.
Thus, the equation;
x+2x=150
Now let's solve the equation;
3x=150
x=150/3
x=50
Thus, Sonia has 50
Move the negative sign to the left
-4 = s - (-6/4)
Simplify 6/4 to 3/2
-4 = s - (-3/2)
Simplify brackets
-4 = s + 3/2
Subtract 3/2 from both sides
-4 - 3/2 = s
Simplify -4 - 3/2 to -11/2
-11/2 = s
Switch sides
<u>s = -11/2</u>
