15 is the half of 30 keep counting so when you get to 50 the number you have is the answer
Answer: 52.77876 in
Explanation: C=2πr=2·π·8.4≈52.77876 in
Answer:
7.1
Step-by-step explanation:
write pythagorean theorem + =
2 = 100
divide 2 both side:
= 50
=
=
= 7.07106781
round to nearest tenth:
= 7.1
Answer:
5
Step-by-step explanation:
5 x 5 = 25
x x x x x
x x x x x
x x x x x
x x x x x
x x x x x
The answer is 45%
1. Calculate how many ml of blue pigment are in 4ml of ink A if it contains <span>10% blue pigment:
4 ml is 100%
a ml = 10%
4 ml : 100% = a : 10%
a = 4 ml * 10% : 100% = 0.4 ml
2.</span> Calculate how many ml of blue pigment are in 10ml of ink A if it contains x% blue pigment:
10 ml is 100%
b ml = x%
10 ml : 100% = b : x%
b = 10 ml * x% : 100% = x/10 ml
3. 2. Calculate how many ml of blue pigment are in 14ml (because Four milliliters of ink A is added to 10 milliliters of ink B) of total mixture if it contains 35% blue pigment:
14 ml is 100%
t ml = 35%
14 ml : 100% = t : 35%
t = 14 ml * 35% : 100% = 4.9 ml
4. <span>What percentage of blue pigment is in the mixture of the two inks:
a + b = t
0.4 + x/10 = 4.9
x/10 = 4.9 - 0.4
x/10 = 4.5
x = 4.5 * 10 = 45</span>