Answer:
The values of x and y are x = -3 and y = -2
Step-by-step explanation:
In the complex numbers if a + bi = c + di, then the real parts are equal and the imaginary parts are equal
Let us use this rule to solve the question
∵ -21 + 5yi = 7x - 10i
∴ The real parts are -21 and 7x
∴ The imaginary parts are 5y and -10
∵ The real parts are equal
∴ 7x = -21
→ Divide both sides by 7
∴ 
= 
∴ x = -3
∵ The imaginary parts are equal
∴ 5y = -10
→ Divide both sides by 5
∴ 
= 
∴ y = -2
∴ The values of x and y are x = -3 and y = -2
Answer: C
Step-by-step explanation:Well the change in price was 50 dollars
Now divide your change in price by the original price
50/250=.2
To get that into a percentage multiply it by 100 and you get 20%
The answer is C
If you divide 64/16, that equals 4, then you multiply 4*3 and your answer is 12. It looks something like this (for "showing your work" purposes);
64/16=4
4 x 3=12
answer=16 cups of sugar for 64 bags of tea
Answer:
The measure is 145
Step-by-step explanation:
we know that
Average Rate of Change. is the change in the y-value divided by the change in the x-value for two distinct points on the graph
So
in this problem
substitute the values in the formula above
Divide by 
both numerator and denominator
therefore
the answer is
