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gladu [14]
2 years ago
5

. A 2% solution of acid was mixed with a 12%

Mathematics
1 answer:
IgorC [24]2 years ago
4 0
Sorry don’t now the answer to this problem
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How to solve this brainteaser
laila [671]

Answer:

last row equals 333

Step-by-step explanation:

The clock showing time 9:00 should be worth 9 points, and the clock showing 3:00 should be worth 3 points, giving for the first row:

9 + 9 + 3 = 21

the three equal calculators showing 1234 are worth 10 points each:

1+2+3+4 = 10

and 10 + 10 + 10 = 30

the light bulbs should be 15 points each then giving 15 + 15 - 15 = 130 - 15 = 15 Notice also that they all have 5 rays of light coming out (so a 3 points per ray)

Now for the bottom line we have:

9 + (1+2+2+4) times 3 * 12 (only four rays on each bulb thus 4 * 3 = 12)

Notice we added the figures that appear in the calculator.

9 + 9 * 36 = 333

7 0
3 years ago
Please answer fast!!!!
Nady [450]
Well if it is the same number of Toothbrushes and Toothpaste tubes in a pack then you use the smallest number 12 and this is the answer.

The greatest number of packages he can make is 12.
8 0
3 years ago
Find a number that when subtracted from the numerator of 13/8 and added to the denominator of 13/8 results in fraction equivalen
mariarad [96]
The answer should be 6/15
3 0
3 years ago
Find the infinite sum of 10,5,2.5,1.25...
____ [38]
Notice this is a geometric progression since each number multiplied by some factor equals the next number in the sequence, in this case,

10 \times r = 5 \Rightarrow r=0.5

Then by applying the formula for sum to infinity of a geometric progression,
S_\infty = \frac{a}{1-r} = \frac{10}{1-0.5} = 20
3 0
2 years ago
Read 2 more answers
Please help me with this!!
rewona [7]
Area = b * h
Area of orange = area of big square subtract by area of small square

Small square = b^2
Big square = a^2
(a^2 - b^2) = (a - b)( a + b)

Solution: (a - b) (a + b)
8 0
2 years ago
Read 2 more answers
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