(b-7)m=r
Use the distributive property to multiply b-7 by m.
bm-7m=r
Add 7m to both sides.
bm=r+7m
The equation is in standard form.
mb=7m+r
Divide both sides by m.
mb/m = 7m+r/m
Dividing by m undoes the multiplication by m.
b= 7m+r/m
Divide r+7m by m.
b= r/m+7
Answer:
Total área: 9+9+8+6= 32 mm^2
Step-by-step explanation:
Square = 3x3 = 9mm^2
Triangle= Heigh: sqrt (3^2+3^2) = 9 and base=3
A = (9x3)/2 = 9mm^2
Rectangle= 4x2= 8mm^2
Triangle (high: 5-2=3)
(4x3)/2 = 6mm^2
Total area
1. =4/16 which in simplified terms = 1/4
2. = 37/99 (find the lowest common denominator which is 99 then multiply them, then combine fractions then subtract them)
3. 2/25
4. 12/18 which simplified is 2/3
5. 5/15 which simplified = 1/3
Hope you understand that:)