Answer:

Step-by-step explanation:
Let the width be 'w'
Length of a rectangle = 5w
Perimeter of a rectangle = 60 cm
Area of a rectangle = ?
<u>First</u><u>,</u><u> </u><u>finding </u><u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>width </u><u>'</u><u> </u><u>w</u><u> </u><u>'</u>

plug the values
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Distribute 2 through the parentheses
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Collect like terms
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Swap the sides of the equation
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Divide both sides of the equation by 12
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Calculate
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cm
<u>Finding </u><u>the</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>length</u><u> </u><u>(</u><u> </u><u>l</u><u> </u><u>)</u>

Substitute the value of w
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<u>Finally</u><u>,</u><u> </u><u>Finding</u><u> </u><u>the</u><u> </u><u>area</u><u> </u><u>of</u><u> </u><u>rectangle</u><u> </u><u>having</u><u> </u><u>length</u><u> </u><u>of</u><u> </u><u>2</u><u>5</u><u> </u><u>cm </u><u>and</u><u> </u><u>width </u><u>of</u><u> </u><u>5</u><u> </u><u>cm</u>

plug the values
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Multiply the numbers
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Hope I helped!
Best regards!!
#7. let x = the amount of money he borrows each day. so, the equation would be 8x (because it’s over 8 days, so 8 times x) = 28
so equation: 8x=28
then solve for x, which is 3.5 so $3.50
Answer:
y=-2x-20
Step-by-step explanation:
y=mx+b
m=(y2-y1)/(x2-x1)
m=(-5+4)/(-6+8)
m=-1/2
y=-1/2x+b
-4=-1/2(-8)+b
-4=4+b
-8=b
y=-1/2x-8
Hope this helped! Please mark brainliest :)
Lets think they have cards, Alex = x , Gil = y and Meg = z. Then,
x+y+z = 740
Alex had 20 fewer cards than Gil. So,
x+20 = y
Alex had 120 fewer cards than Meg. So,
x+120 = z
x+(x+20)+(x+120) = 740
3x + 140 = 740
x= 200
y= 220
z= 320
<span>So Alex had 200 cards, Gil had 220 cards and Meg had 340 cards</span>