3 years ago

There are 140 members in a community sports program. Sixty-five percent of these members play soccer.

1 answer:

defon3 years ago

3 0

Well, we have to determinate the 65% of 140, which are 91 members play soccer.

The total members are 140, if 91 play soccer, 49 members do not play soccer.

The answer is 49 members.

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Two cars leave at the same time from points A and B, the distance between them is 280 km. If the cars meet each other, they’ll m

kykrilka [37]

Set up the following equations:

$2x + 2y = 280$

$14x - 14y = 280$

x represents car A's speed, and y represents car B's speed.

We'll use elimination to solve this system of equations. Multiply the first equation by 7:

$(2x + 2y = 280) * 7 = 14x + 14y = 1960$

$14x - 14y = 280$

Combine both equations:

$28x = 2240$

Divide both sides by 28 to get x by itself:

$x = 80$

The speed of car A is 80 mph.

Since we now know the value of one of the variables, we can plug it into the first equation:

$2(80) + 2y = 280$

$160 + 2y = 280$

Subtract 160 from both sides.

$2y = 120$

Divide both sides by 2 to get y by itself:

$y = 60$

The speed of car B is 60 mph.

7 0

3 years ago

Im terrible at math please help

zalisa [80]

B is false but C and D are true

5 0

3 years ago

HELPP URGENT!

ollegr [7]

Answer:

Step-by-step explanation:

It’s B