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bagirrra123 [75]
3 years ago
8

I been so lost and confused on this ;( help?

Mathematics
1 answer:
viva [34]3 years ago
5 0
2x - 5y = 9
2x -9 = 5y
(2x -9) /5 = y

x= -1
(2(-1) -9)/5 =y
(-2 -9) / 5 = y
-11/5 = y

x=0
(0-9)/5 = y
-9/5 = y

x=1
(2(1) - 9) /5 = y
-7/5 = y
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The burges are moving across the country .Mr burges leaves 3 hours before mrs.burges. If he averages 50 mph and she averages 70
kirill [66]

10.5 hours

let t be time then distance travelled by both is

Mr Burges ⇔ d = 50t ( distance = speed × time )

Mrs Burges ⇒ d = 70(t - 3)

At the point of overtaking both will have travelled the same distance

equating their distance and solving for t

70(t - 3) = 50t

70t - 210 = 50t ( subtract 50t from both sides )

20t - 210 = 0 ( add 210 to both sides )

20t = 210 ( divide both sides by 20 )

t = 10.5 hours


4 0
3 years ago
How do you do 01.06 Division with Mixed Numbers?
Sliva [168]

Answer:

1  3/50

Step-by-step explanation:

the .06 is in the hundreths place so it would be 6/100 or 3/50

now add the whole number to it to get 1 3/50

4 0
3 years ago
Which set of values for x makes the inequality 12 - x < 7 true?
Mila [183]

Answer:

D.  6, 7

Step-by-step explanation:

12 - x < 7

-x < -5  

(whenever you multiply or divide an inequality by a negative you must switch the inequality symbol)

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8 0
2 years ago
Kurt earns $7 per hour for doing chores. his goal is to make at least $35 each week
Yuri [45]

Answer:


Step-by-step explanation:

This is what i get what i understand from your question .

Kurt earns $7 per hour for doing chores. his goal is to make at least $35 each week


So ,

$7 =per hr

X= unknown hrs

$35= goal


7 x =35


Divide both sides by 7 to get x alone representing hrs.


X= 35/7

X= 5


So 5 hrs per week to make 35 a week.


5×7=35

35=35

5 0
2 years ago
Find the area. Round to the nearest whole number.
Leona [35]

Answer:

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the answer is 33. But when i round its 23.

Step-by-step explanation:

7 0
2 years ago
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