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lesantik [10]
3 years ago
12

the total cost of 4 pens and 7 mechanical pencils is $13.25 the cost of each pencil is $0.75 write an equation that could be use

d to find the cost of a pen
Mathematics
1 answer:
balu736 [363]3 years ago
7 0
4x+7y=$13.25
4x+ 7($0.75)
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A pilot can travel for 140 miles with the wind in the same amount of time as 360 miles against the wind. Find the speed of the w
quester [9]

Answer:

  -88 mph

Step-by-step explanation:

We can use the relation ...

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The wind speed is -88 miles per hour.

_____

The problem statement tells us the travel is slower <em>with</em> the wind than <em>against</em> the wind. Hence "with the wind" must be subtracting from the net speed. That is, the wind speed is negative.

4 0
3 years ago
Can sides of a triangle have lengths 1, 13, and 14 ???
victus00 [196]

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Step-by-step explanation:

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5 0
3 years ago
Simplify this expression, you are y years old. Your sister is 3 years older than you. Your uncle is 4 times older than your sist
uysha [10]

Answer:The simplified expression that represents the uncle's age is

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Step-by-step explanation:

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8 0
3 years ago
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