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yawa3891 [41]
3 years ago
14

Help me !!!!!!!!!!!!!???

Mathematics
2 answers:
Nesterboy [21]3 years ago
7 0

Answer:

what are you supposed to be doing

S_A_V [24]3 years ago
7 0
Is there a question what are you doing
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A bag contains 22 coins consisting of quarters and nickels. The total value of the coins is $3.90. How many nickels are in the b
bezimeni [28]

Answer:

8 Nickels

Step-by-step explanation:

Since a Nickel is worth 5 cents ($0.05)

And a Quarter is worth 25 ($0.25)

and theres 22 coins

8 of those coins would be nickels which would mean we add 8 nickels up

8 x 0.05 = 0.4

then we add the quarters up

14 x 0.25 = 3.5

3.5 + 0.4 = $3.90

8 0
3 years ago
I need to simplify √(5+2√2) and √(6+2√5)
SIZIF [17.4K]
This expression is easier than it looks like. I thought that to solve it you have for example to express the 2 via 10 * 5^-1 and stuff like that - but you can multiply and divide this expression by some factor. In our case first we multiply by conjunctive expression root(5-2root2) and the second by root(6+2root5). In first we get root16 and the second calculate.
6 0
2 years ago
Find the missing angle for the equilateral triangle below .
creativ13 [48]

Answer:

All equilateral triangles have angles equal to 60°.

6 0
2 years ago
Marie mixes 40 liters of 12% acid solution with a 32% acid solution to make a 16% acid solution. How many liters of 32% solution
aleksandrvk [35]
We let the amount of 32% acid solution added to be X ,
Firstly, 40 of 0.12 conc. , = 4.8L of acid, and 35.2L non acid
For ever 1 L of 32% acid we add in we get 0.32L of acid and + 0.68L non Acid, 
So we formulate an equation
(4.8+0.32X) / (40+X) = 16/100
(4.8+0.32X) = 0.16(40+X) =6.4+0.16X
0.16X = 1.6
X =10
Hence she used 10L of 32% Solution acid.
4 0
3 years ago
Given the figure below, find the values of x and z.
Readme [11.4K]

Answer: Z = 83

X = 7

Step-by-step explanation:

Z = 83 because the opposite side is also 83 and they are the same angle. X = 7 because the whole thing equals 360 and 83 +83 = 166 and 360 - 166 = 194 and 194 divided by 2 equals 97 and 15 x 7 - 8 = 97 and the other side is also the same because the angles are the same

5 0
3 years ago
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