Answer:
1. 3.5% is 35/1000 as a fraction and 0.035 as a decimal.
2. 2.31 is 231% and 231/100
3. 23/25 is 92% and 0.92
4. 33% is 33/100 and 0.33
Step-by-step explanation:
For converting from fraction to decimal, simply divide the top by the bottom.
For converting from decimal to fraction, depending on how many places there are, you choose what to divide by. Ex: .002 (there are 3 places, it is divided by 1,000)
For fraction to percent, you divide the top by the bottom, make it a decimal, and move the decimal over two places to the RIGHT.
For percent to decimal, you move the decimal over two places to the LEFT.
Answer:
IDEK
Step-by-step explanation:
3 days one activity n 4 days another or vice versa using combination 2*(combination of 1in 3*combinations of 1 in4)=
Answer: The first pair of triangles can be proven congruent by SAS.
Step-by-step explanation:
SAS postulate says that if two sides and the included angle of a triangle are equal to two sides and the included angle of another triangle, then the two triangles are said to be congruent.
In the first pair of triangles the included angle of a triangle are equal to two sides and the included angle of another triangle, therefore by SAS postulate the two triangles are said to be congruent.
In the second figure, the pair of triangles are congruent by ASA postulate not SAS.
In the third figure, the pair of triangles are not congruent by any postulate or theorem [Because there is no SSA rule].
In the fourth figure, the pair of triangles are congruent by SSS postulate not SAS.
Answer:
x = -4; y = 3
Step-by-step explanation:
-3x + 4y = 24
6x + 2y = -18
Rewrite the first equation as it is. Divide both sides of the second equation by 2 and write it below the first equation. Then add the equations.
-3x + 4y = 24
+ 3x + y = -9
----------------------------
5y = 15
Divide both sides by 5.
y = 3
Now plug in 3 into y in the first original equation and solve for x.
-3x + 4y = 24
-3x + 4(3) = 24
-3x + 12 = 24
-3x = 12
x = 12/(-3)
x = -4
Answer: x = -4; y = 3