Answer:
169
Step-by-step explanation:
(19×3)+(8×5)+(9×8)=169
Answer:
y=4x-7
Step-by-step explanation:
Trust
Answer: Is 72 21/64
Multiply 12 times 6 that's 72. Then multiply 3 times 7 and 21. And then multiply 8 times 8 and get 64.
RS+ST=RT
RS=7y-4
ST=y+5 using RS and RT in the first equation gives you:
7y-4+y+5=RT combine like terms on left side
8y+1=RT, and we are told that RT=28 so:
8y+1=28 subtract 1 from both sides
8y=27 divide both sides by 8
y=27/8
(RS=19 5/8, ST=8 3/8, RT=28)
