Answer:
For chess club:
y1 = 16 + 1*x where y1=total number of members after x months
For film club
y2 = 4 + 4*x where y2=total number of members after x months
y1 = y2 at
16 + x = 4 + 4x
3x = 12
x = 4
Therefore, after 4 months they the same number of members (equals 20 members, 16 + 1*4 or 4 + 4*4).
<h3>
Answers:</h3>
Variation Constant: k = 7/6
y = 245/6 when x = 7 and z = 5
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Explanation:
"y varies jointly as x and z" means that y = kxz
We have (x,y,z) = (4,14,3) as one triple, so,
y = kxz
14 = k*4*3
14 = 12k
12k = 14
k = 14/12
k = 7/6 is the variation constant
The equation goes from y = kxz to y = (7/6)xz
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Plug in x = 7 and z = 5 to find y
y = (7/6)xz
y = (7/6)*7*5
y = (7/6)*(7/1)*(5/1)
y = (7*7*5)/(6*1*1)
y = 245/6
Answer:
57cm²
Step-by-step explanation:
area for trapezoid=
b¹+b²=x
x÷2=v
v×h=z
h=height
b=base
14+5=19
19÷2=9.5
9.5×6=57
Answer:
this kid grayson is deleting my answer and i dont know how when they arent even his questions and he is being a little brat
Step-by-step explanation:
so watch out for him
<u>Given </u><u>:</u><u>-</u><u> </u>
- C is the midpoint of BD .
- BC = x + 7
- CD = 8x
<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>
<u>Answer</u><u> </u><u>:</u><u>-</u><u> </u>
As C is the midpoint , we can say that the line is BCD . So that ,
Substitute the values ,
- ( x+7 ) + 8x = BD
- BD = x + 8x + 7
- BD = 9x + 7 .
<u>Hence</u><u> the</u><u> </u><u>value</u><u> of</u><u> </u><u>BD </u><u>is </u><u>9</u><u>x</u><u> </u><u>+</u><u> </u><u>7</u><u> </u><u>.</u>
