Answer:
a) 2.5×2.5×2.5-1.4×1.4×1.4=12.881
b) (2.5)2+2.5×1.4+(1.4)2=31.5
Step-by-step explanation:
yuh multiple 2.5 three times and subtract 1.4 multiple three times. 2.5×2.5×2.5-1.4×1.4×1.4
15.625-2.744=12.881.
b) when opening bracket Yuh multiple the number in the bracket by the number outside the bracket. when bracket is open Yuh can now add, multiple to obtain your answer please
(2.5)2+2.5×1.4+(1.4)2
5+2.5×1.4+2.8
7.5×4.2=31.5
Momoka made 144 meals for the customers and made 12 meals for the employees, hoped this helps :)
Answer: x=-18
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
1) B=Bikers H=Hikers
H=B+178 (178 MORE HIKERS THAN BIKERS)
B+H=676 (TOTAL EQUATION)
COMBINE EQUATIONS (Plug in H from first equation into second one)
B + B +178 = 676
SOLVE FOR B
2B=498
B=249 Total Bikers
Now for Hikers go back to the first equation we made
H= B+178.... Plug in B =249 and get
H=427
2) Children =C AND Adult =A
C+A=764 .............. C=764-A
2C+5A=2992
COMBINE EQUATIONS
2(764-A)+5A=2992
You can solve for A.
A=488
Now c GO BACK TO FIRST EQAUTION
C+A=764 and solve for C.
C=276
