Answer:
7 : 5
Step-by-step explanation:
let the age of the younger be x , then the older is x + 18, thus
x + x + 18 = 108, that is
2x + 18 = 108 ( subtract 18 from both sides )
2x = 90 ( divide both sides by 2 )
x = 45
Thus younger is 45 and older is 45 + 18 = 63
ratio older : younger = 63 : 45 = 7 : 5
Answer:
The easiest way to convert a fraction to a decimal is to divide the numerator (the top of the fraction) by the denominator (the bottom of the fraction) by using a calculator. The resulting answer will be the value of the fraction expressed as a decimal number.
Step-by-step explanation:
Hello everyone
Are you guys talking about the Lesson 10: Surface Area and Volume Unit Test unit 6: Surface Area and Volume test, i have the answers right here for all of you:
1) 17
2)Hexagon
3)95cm^2; 275cm^2
4)795m^2; 822m^2
5)2,205 in^2
6)770m^2
7)43.1cm
8)LA= 829.4ft^2; SA 1,209.5ft^2
9)593.9cm^3
10)43.35pim^3
11)2.1 in
12)528
13)850cm^3
14)115cm^2
15)3,054cm^3
16)2,158m^2
17)Yes 1:8
18)144m^2
19)4,712m^2
20)1,944cm^3
If you guys need help with anything else please feel free to ask !!!!, trust me those answer are all correct, if you have the same test as me, and same answers, like i put, those answers will help you !.
~By Naba~
Answer:
sin(36) and cos(54)
Step-by-step explanation:
If in degrees, then when you plug both of these into a calc, you get the same values.
Answer:
6x^2-7x-20
Step-by-step explanation:
Use the FOIL method: (a+b)(c+d)= ac+ad+bc+bd
6x^2-15x+8x-20
Collect like terms:
6x^2+(-15x+8x)-20
Simplify:
6x^2-7x-20
