3 years ago

Mary lives 100 meters away from Bill. Whats her speed if she reaches Bill in 50 seconds?

Mathematics

1 answer:

matrenka [14]3 years ago

6 0

It is 50!But really does anyone here no about the calculator?!

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They need to sell $500 of stuff

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2 years ago

How many gallons of pure alcohol should be added to 40 gallons of a 20% solution so

Rudik [331]

Answer:

8/3

Step-by-step explanation:

i put equations as this:

x+40 = y

where x is galllons of pure mixture and y is the gallons of the new mixture

the other equation i id was:

x+0.2(40) = 0.25y

x+8 = 0.25y

y = 4x+32

solve using substitution

(x+40) = 4x+32

x = 4x-8

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3 years ago

Joe can clear a lot in 2.5 hours. His partner can do the same job in 7.5 hours. How long will it take them working together?

irina [24]

Answer:

The time required by both persons to complete the work T = 1.458 hours

Step-by-step explanation:

Given data

Time required by Joe to clear a lot $T_1$ = 2.5 hours

Time required by his partner to clear a lot $T_2$ = 2.5 hours

Time required by both persons to complete the work by working together

$T = \frac{T_1 T_2}{T_1 + T_2}$

$T = \frac{(2.5)(3.5)}{2.5 + 3.5}$

T = 1.458 hours

Therefore the time required by both persons to complete the work T = 1.458 hours

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3 years ago

a type of college payment of that payment you that borrow money now and pay it back with intrest later is called what type of pa

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It is called student loans

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3 years ago

Help me plz .........<br>.

ankoles [38]

Answer:

Step-by-step explanation:

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2 years ago