Answer:
113,046
Step-by-step explanation:
Add inside of parentheses first to get
(498)x(227)
Multiply to get
113,046
Answer:
b/7=-5
b=-5×7
b=-35
Step-by-step explanation:
2.c/8-(-9)=18
c/8+9=18
c/8=18-9
c/8=9
c=9×8
c=72
Answer:
≈ 35 ft²
Step-by-step explanation:
The area (A) of a regular pentagon is
A = × perimeter × apothem
perimeter = 5 × 4.5 = 22.5 ft, thus
A = 0.5 × 22.5 × 3.1 = 34.875 ≈ 35 ft²
Answer:
x = 5 ; y = - 3
Step-by-step explanation:
2x - 13 = y
2x - y =13 --------------------(i)
-3x + 2y = -21 ----------------(ii)
(i)*2 ===> 4x - 2y = 26
(ii) ===> <u> -3x + 2y = -21</u>
add ==> x = 5
When we are adding, -2y and 2y gives 0 or cancelled. 4x and -3x gives 1x; 26 and -21 --> different sign so subtract and put the bigger number sign. so it gives 5.
substitute x = 5 in equ (i)
2*5 - y = 13
10 - y = 13
-y = 13 -10
y = 3
y = -3
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