3.125 + (-3.9) - (2.46)
= 3.125 -3.9 -2.46
= -0.775 -2.46
= -3.235
Answer:
e value = 6
i value = 1
Step-by-step explanation:
The system of equation are;
e - i = 5...(1)
e + 3·i = 9...(2)
Making e the subject of equations (1) and substituting the value of e equation (2) gives;
From equation (1), e - i = 5, we have, e = 5 + i
Substituting the value of e in equation (2), e + 3·i = 9 gives;
e + 3·i = (5 + i) + 3·i = 5 + 4·i = 9
4·i = 9 - 5 = 4
i = 4/4 = 1
i = 1
From e = 5 + i, we have;
e = 5 + i = 5 + 1 = 6
e = 6
Therefore;
e value = 6
i value = 1
Answer:
19 square cm
Step-by-step explanation:
4 + 2.5 = 6.5
4 × 6.5 = 26
Since the shape is half of the product above, we're going to divide it by 2
26 ÷ 2 = 13
4 × 3 = 12
12 ÷ 2 = 6
Now to add them together
13 + 6 = 19