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NeTakaya
2 years ago
8

HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
defon2 years ago
3 0
-4 5/8 + 2 1/8
Convert mixed numbers into improper fractions
-37/8 + 17/8
Add the numerators but NOT the denominators
Final Answer: -20/8 or -2 1/2
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suter [353]

Answer:

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3 0
2 years ago
Read 2 more answers
Can someone please help me.
Katena32 [7]
Given 
- f(n) values for n=1,2,3,4
- possible candidates for the function

Solution:
Method: Evaluate some of the values, for each function.  A function with ANY value not matching the given f(n) values will be rejected.

N=1, f(n)=4
f(1)=4-3(1-1)=4
f(1)=4+3^(1+1)=4+3^2=4+9=13 ≠ 4   [rejected]
f(1)=4(3^(n-1))=4(3^0)=4
f(1)=3(4^(n-1))=3(4^0)=3*1=3  [rejected]

N=2, f(n)=12
f(1)=4-3(2-1)=4-3(1)=1 ≠ 12   [rejected]
[rejected]
f(1)=4(3^(2-1)=4*3^1=4*3=12
[rejected]

Will need to check one more to be sure
N=3, f(n)=3
[rejected]
[rejected]
f(3)=4(3^(n-1))=4(3^(3-1))=4(3^2)=4*9=36   [Good]
[rejected]

Solution: f(n)=4(3^(n-1))










6 0
3 years ago
The ratio of boys to girls is 3:4 and the ratio of girls to adults is 5:7 what is the ratio of children to adults
Ilya [14]

Answer:

the ratio is 12:7 but im not 100% sure

6 0
3 years ago
Ben is making math manipulatives to sell. He wants to make at least $450. Each manipulative costs $18 to make. He is selling the
lys-0071 [83]
7 is the answer because 7 is great and is always the answer

6 0
3 years ago
Max and his friend zeke are comparing their ages. they figure out that if they double maxs age from 3 years ago and add it to ze
chubhunter [2.5K]
The first step of solving this problem is to find your x, which is the unknown number. The unknown number is the age of Max. Once you find the x you can write out your equation.

The equation for this problem is:

2x+8=26

the first step is to subtract 8 from both sides so that all you have on the left side is 2x and your equation will look like ths:

2x=18

after subtracting the 8; divide everything by the coefficient of x which is 2, your result is:

x=9

Max is 9 years old.
7 0
3 years ago
Read 2 more answers
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