rebecca7415
26.08.2019 •
Mathematics
What is the solution to the system of equations? y = 1.5x – 4 y = –x (–1.6, 1.6) (–1.5, 1.5) (1.5, –1.5) (1.6, –1.6)
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Ответ:
1.5x + x = 4
2.5x = 4
x = 1.6
y = -1.6
Solution is (1.6, -1.6)
Ответ:
Julia owes her dad $12. She wants a new blouse that just went on sale, so she borrows $20 from her sister. She pays her father $5 and spends the rest on the blouse. Which statement is true?
A. Julia’s money status is $8 because she started at –$12 and borrowed $20.
B. Julia’s money status is –$7 because she started at –$12, got $20, but only paid $5 of her debt.
C. Julia’s money status is –$27 because she started at –$12, borrowed $20, but paid off $5.
D. Julia’s money status is –$32 because she began at –$12 and borrowed $20.
we know that
Julia owes her dad $12 already and again she borrowed $20 from her sister
So,
total debt = $12+$20=$ 32.
And,
she paid $5 only to her father.
So,
Her money status is
-32+5 = -$27
the answer is the option
C. Julia’s money status is –$27 because she started at –$12, borrowed $20, but paid off $5.