If q represents the quantity of solution needed, you require
... 0.90q = 0.15×(100 mL)
... q = (0.15/0.90)×(100 mL)
... q ≈ 16.7 mL
_____
You actually need 16 2/3 mL of concentrated solution.
<h3>
Answer: 25.9</h3>
========================================
x = length of AB
The parallel bases of the trapezoid can be added up, and divided over 2, to get the length of the midsegment. The midsegment is the line that cuts the nonparallel sides (or legs) of the trapezoid in half. The midsegment is parallel to the bases.
So,
(AB+DC)/2 = MN
(x+11.5)/2 = 18.7
x+11.5 = 2*18.7
x+11.5 = 37.4
x= 37.4-11.5
x = 25.9
AB = 25.9
Answer:
3/1 ; 9/ 3 ; 36/ 18
Step-by-step explanation:
Write the ratios in fractional form
Initial condition:
18
6
1
st Equivalent
→
18
÷
6
6
÷
6
=
3
1
2
nd
Equivalent
→
18
÷
2
6
÷
2
=
9
3
3
rd
Equivalent
→
18
×
2
6
×
2
=
36
12
Write the ratios in fractional form
Initial condition:
18
6
1
st
Equivalent
→
18
÷
6
6
÷
6
=
3
1
2
nd
Equivalent
→
18
÷
2
6
÷
2
=
9
3
3
rd
Equivalent
→
18
×
2
6
×
2
=
36
12
yes because none of the x values are the same bb ♡
Answer:
(3/26, 38/13)
Step-by-step explanation:
I hope I solved it right and it helped you somehow
If you have any questions about the way I solved it, don't hesitate to ask :)
