cruzliliana67
cruzliliana67
12-11-2017
Mathematics
contestada
May someone please help with 33.?
Respuesta :
MathisLif3
MathisLif3
12-11-2017
2x+3y=50
x+y=21
where x,y are 2pt and 3ptrs
y=21-x
2x+3(21-x)=50
2x+63-3x=50
-x=-13
x=13
so 13+y=21 => y=8
Check 2*13+3*8=50 yuup
they had 13 2ptrs and 8 3ptrs
Answer Link
VER TODAS LAS RESPUESTAS ( 51+ )
Otras preguntas
A pension fund has an average duration of its liabilities equal to 15 years. The fund is looking at 5-year maturity zero-coupon bonds and 4% yield perpetuities
68.2 divided 10 power of 1
When two electrical resistors with resistanceR1>0 andR2>0 are wired in parallelin a circuit, the combined resistanceR, measured in ohms (Ω), is given by1R
What does the term xenophobic mean? A) an unconstitutional law B) the belief in immigrant quotas C) a dislike of people from other countries D) a dislike or
what is the answer to 4(3C-2)=12(C+2)
please helppp! i am struggling here
what is 7 inches more than normal
The quotient of a number and 4 is at most 5
Which structure connects a placenta to an embryo? cervix fallopian tube vagina umbilical cord
Qualitative data from surveys and interviews can be obtained by A. averaging the number of responses to each sample question. B. using a numeric scale to record
