Answer:
x= 25/3 or 8.333333
Step-by-step explanation:
you add 11 to 10 to get 21
3x-4=21
add 4 to both sides, which will cancel out the (-4)
3x=25
divide each term by 3 to get x by itself
3x/3 = 25/3
you will then get x=25/3
Step-by-step explanation:
6|8-y|-15
6|8-10|-15
6|-2|-15
6(2)-15
12-15
-3
The solution to 6×+2y=6 is y=0.5
The solution for 7×+3y=5 is y
= 0.238095 (.238095 is repeated)
Answer:
21
ctto JBarnum
Step-by-step explanation:
P+11=(1/2)(P-13)^2
P+11=(1/2)(P^2-26p+169)
2(P+11)=(1/2)(2)(P^2-26p+169)
2P+22=P^2-26p+169
0=P^2-28p+147 ( -7 and -21)
(P-7)(P-21)=0
P=7,21 (cant be 7 as 13 years from 7 is negative so peter is 21)
checking:
21+11=32
32=(1/2)(21-13)^2
32=(1/2)(8)^2
32=(1/2)64
32=32
correct
1 5/9 × 2 6/7=??
To find this out, we have to make both fractions improper fractions, by multiplying the whole numbers with the bottom numbers(denominator) and then adding the numerator(top number).
1 5/9= (9×1) + 5 = 14/9
2 6/7= (7×2) + 6 = 20/7
Now, we multiply them together.
14/9 × 20/7
Cross multiply.
Your answer is now 40/9
Make that into a mixed number.
D) 4 4/9
~Hope I helped!~
