Answer:
11 and 7
Step-by-step explanation:
let x be the bigger number and y the smaller
the sum of the two numbers is 18
x+y=18
x=18-y------i
the sum of the greater number and twice the smaller number is 25
x+2y=25----ii
substituting i in ii
18-y+2y=25
collecting like terms
y=25-18
y=7
subtitute for y in i to get x
x=18-y
x=18-7
x=11
Answer:
Step-by-step explanation:
10:2 would be written as 
in fraction form.
We can simplify this fraction to 5 to 1.
Hope this helps.
This question is not complete
Complete Question
Sherry claims that the expression 1/x will always be equivalent to a repeating decimal whenever x is an odd number greater than 1.
Which of these values of x will prove Sherry's claim is false?
Answer:
When x = 5
Step-by-step explanation:
Sherry claims that the expression 1/x will always be equivalent to a repeating decimal whenever x is an odd number greater than 1.
Examples of odd numbers greater than 1 : 3, 5, 7, 9, 11 ....
We would put these odd numbers to test
a) When x = 3
= 1/3 = 0.3333333333
b) When x = 5
= 1/5 = 0.2
c) When x = 7
= 1/7 = 0.142857142
d) When x = 9
= 1/9 = 0.1111111111
e) When x = 11
= 1/11 = 0.0909090909
From the above calculation, we can see that the only odd number greater than 1 that will prove Sherry's theory wrong is when x = 5
Therefore, the value of x that will prove Sherry's claim is false is when x = 5
Answer:
4x^2 +84x+440
840 in^2
Step-by-step explanation:
The length of the picture and frame is x+ 22+x= 2x+22
The width of the picture and frame is x +20+x = 2x+20
Area is length times width
A = (2x+22) *(2x+20)
We can FOIL to find the area
first 2x*2x = 4x^2
outer 2x*20 =40x
inner 2x*22 = 44x
last = 22*20 = 440
Add these together
4x^2 +40x+44x+440
4x^2 +84x+440
b. x=4
4x^2 +84x+440
4(4)^2 +84(4) +440
4*16 +336+440
64+776
840
