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Gnom [1K]
3 years ago
9

X=-7y+5 5x=4y=-6 solve by substitution

Mathematics
1 answer:
lyudmila [28]3 years ago
4 0
5x (-7)y=4
y=-4/35
5x=4
x=4/5
(x, y) = (4/5, 4/35)
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Can someone help please
Trava [24]

9514 1404 393

Answer:

  16.4

Step-by-step explanation:

The law of cosines is useful here. It tells you ...

  b^2 = a^2 + c^2 -2ac·cos(B)

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4 0
3 years ago
(1 point) Divide and simplify your answer.
VashaNatasha [74]

Answer:

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Step-by-step explanation:

5 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
vaieri [72.5K]

x²(x - 4)(2x + 5) = 0

x² = 0       or    x - 4 = 0     or        2x + 5 = 0

√x = √0   or          x = 4     or               2x = -5

  x = 0                                                     x = -\frac{5}{2}

Answer: 0, 4, -\frac{5}{2}

8 0
4 years ago
!Help !
svetoff [14.1K]

Answer:

50 minutes

Step-by-step explanation:

she spent 1 hr and 30 minutes on homework

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1 hr 30 min + 40 minutes = 2 hrs and 10 min

so she had 50 minutes to kill before bedtime since she goes to sleep 3 hrs after dinner

2hr 10 min + 50 min = 3 hrs.

8 0
3 years ago
A bag of peanuts is 4 1/5 ounces. If you have 3/5 of a bag, how many ounces does it weigh?
Nana76 [90]
4\frac{1}{5} ÷ \frac{3}{5} = 7, but Im not 100% sure if thats right. You should pick someone else's answer.
8 0
3 years ago
Read 2 more answers
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