3 years ago

The Key Club has 35 members. There are three more girls than boys. Write and solve a system of

Mathematics

2 answers:

Sever21 [200]3 years ago

7 0

Answer: 19 girls

16 boys

Step-by-step explanation:

x -girls

y- boys

Lets set system of liner equations:

x+y=35

y=x-3

-----------------

x+(x-3)=35

2x-3=35

2x=38

x=38/2

x=19

19 girls

y=x-3

y=19-3

y=16

16 boys

Troyanec [42]3 years ago

5 0

Answer:

19 girls

Step-by-step explanation:

Since there are 3 more girls than boys, 35-3=32

32/2=16

Now add back the 3

16+3=19

You might be interested in

Marco's mom gave him d dollars for his allowance one week. He also earned $14.55 for his newspaper route that week.

myrzilka [38]

Answer:

The answer is d+14.55

hope it helps!

7 0

3 years ago

Jordan likes only blue jelly beans. He has a box of 100 jelly beans that contains equal numbers of red, blue, green, yellow, and

spin [16.1K]

2/20 is the chance of choosing 2 blue jelly beans. Since there are 5 colors, that are equally divided......

3 0

3 years ago

Between what two consecutive integers is 17?

Marina CMI [18]

Answer:

No solution

Step-by-step explanation:

17 is an integer that is in between the integers of 16 and 18

16 and 18 are not consecutive integers.

No solution

8 0

2 years ago

A copy machine makes 171 coies in 4 minutes and 45 seconds. How many copies does it make per minute?

Jobisdone [24]

Answer:

Step-by-step explanation:

171/(4+0.75) =36

you want it to be in minutes, so calculate the 45 seconds over 60 seconds, which is 0.75. Add that to the 4 minutes, and divide the total number of copies over the time used, and you have speed/minute.

3 0

2 years ago

You stand at point C and look at an aquarium tank. Calculate the radius of the aquarium tank.

leonid [27]

Answer:

The radius of the aquarium tank is $8.25\ ft$

Step-by-step explanation:

we know that

Applying the Tangent Secant Theorem

$DC^{2}=AC*8$

we have that

$AC=(D+8)\ ft$

$DC=14\ ft$

substitute

$14^{2}=(D+8)*8$

$196=8D+64$

Solve for D

$8D=196-64$

$8D=132$

$D=16.5\ ft$

Find the radius

The radius is half the diameter

$r=16.5/2=8.25\ ft$

3 0

3 years ago

Read 2 more answers