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Vesnalui [34]
3 years ago
7

3 teachers for 63 students; 7 teachers for 147 students are they equivalent?

Mathematics
1 answer:
Luda [366]3 years ago
3 0
Yes, they are! If you divide 63/3 you get 21, and if you divide 147/7 you get 21!:)
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six men completed a task in 24 hours and 48 minutes. how long would it take four men to complete the same task
Komok [63]

Answer:

37 hours and 12 minutes

Step-by-step explanation:

six men completed a task in 24 hours and 48 minutes which means (24 x 60) + 48 = 1488 minutes

x is the number of minutes it would take 4 men to complete

6(1488) = 4x

8928 = 4x

x = 2232

x = 2220 + 12 or 37 hours and 12 minutes

8 0
2 years ago
Wich relation is a function of x
faust18 [17]

Answer:

the first one

Step-by-step explanation:

In the other 2 i can see the x repeats itself meaning it isn't a function.

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3 years ago
Choose all the units that are part of the metric system ?
KatRina [158]

Answer:

The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass)

Step-by-step explanation:

The metric system uses units such as meter, liter, and gram to measure length, liquid volume, and mass, just as the U.S. customary system uses feet, quarts, and ounces to measure these.

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8 0
3 years ago
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Drag steps in the given order to evaluate this expression. −2(−4+2)−4
ss7ja [257]

Answer:

0

Step-by-step explanation:

-2(-2)-4

=4-4

=0

8 0
3 years ago
Y = 2x + 4<br> 6x – 3y = -12<br> System by substitution 10 points
Burka [1]

Answer:

(-2, 0)

Step-by-step explanation:

y = 2x+4

6x - 3y = -12

Start by simplifying the second equation by dividing everything by 3 (this will make the math easier)...

2x - y = -4

Then, substitute 2x+4 for y into the second equation (this is because y = 2x+4)...

2x-3(2x+4)=-4

Distribute the -3

2x-3(2x)-3(4)=-4

2x-6x-12=-4

Combine like terms

-4x-12=-4

Add 12 to both sides

-4x-12+12=-4+12

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Divide both sides by -4

x=-2

Plug -2 back in for x to solve for y:

y = 2(-2) + 4

y=-4+4

y=0

(x, y) = (-2, 0)

5 0
2 years ago
Read 2 more answers
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