3 years ago

State the commutative property of addition using the variables and

Mathematics

1 answer:

siniylev [52]3 years ago

8 0

Answer: there is one apple in the frig and two in the bowl how many are there in all

Step-by-step explanation:

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In a class of 47 students, the number of males is 7 less than twice the number of females. How many females and how many males a

Rom4ik [11]

X=number of females
47-x=number of males
# of males is 2*(number of females)-7:
47-x= 2x-7
add x to both sides:
47=3x-7
add 7 to both sides:
54=3x
divide both sides by 3:
x= 18 females
47-18= 29 males

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3 years ago

2+3i divided by 3-3i ( a+bi form)

Oduvanchick [21]

$(2+3i):(3-3i)=\frac{2+3i}{3-3i}\cdot\frac{3+3i}{3+3i}=\frac{(2+3i)(3+3i)}{(3-3i)(3+3i)}=\frac{6+6i+9i-9}{3^2-(3i)^2}=\frac{-3+15i}{9+9}\\\\=\frac{-3+15i}{18}=-\frac{3}{18}+\frac{15i}{18}=-\frac{1}{6}+\frac{5}{6}i$