Answer:
Option 1 -----> -10
Step-by-step explanation:
Substitute a and b into the equation :
-{a-b} =
-{7-(-3)} =
-{7+3} =
-{10} =
-10 ---> Option 1
Hoep this helped and brainliest please
Grade 3: 360 dollars
Grade 4: 276 dollars
Grade 2: 164 dollars
-----------------------------------------------------------------
If Grade 3 has 360 dollars, but has 84 more than Grade 4 then subtract them like
360-84=276
276 is the amount that Grade 4 has, if Grade 4 has more than Grade 2 by 112 then subtract them like:
276-112= 164
Answer: 164
Summary: Grade 2 will have the least amount of dollars, but their total will be 164
A sorting rule is like a timeline
Answer:
Ani age is 21
Biju age is 18
Step-by-step explanation:
let Ani age be X
let Biju age be Y
the difference of their age is 3
i.e X - Y = 3......,....(equ. 1)
let Dharam age be A
let Cathy age be B
i.e A = 2x
B = y/2
the difference of their age is 30
Y/2 - 2x = 30..... (equ. 2)
from equ.1 X = ( 3+y).........( equ.3)
y/2 - 2(3+y) = 30
y/2 - 6 + 2y = 30
multiply both side by 2
y - 6 + 2y = 60
y + 2y = 60 - 6
3y = 54
Y = 18
from equ.3
X = 3+Y where y is 18
X = 3+18 = 21