Answer:
10
Step-by-step explanation:
So the unit rate in this situation is how many times Jazmine spun around in 1 minute, since unit is always 1. To find the answer you divide 20 by 2 which is equal to 10. She spun around 10 times in 1 minute, and 20 times in 2 minutes.
e^x=170
because you subtract like terms (or add, it depends) then simplify (im bad at explaining)
Answer:
60 books
Step-by-step explanation:
let the number of books Willy has be x , then
Tammy has 4x books
Willy has 180 fewer books , that is Tammy has 180 more than Willy , so
4x = x + 180 ( subtract x from both sides )
3x = 180 ( divide both sides by 3 )
x = 60
Thus
Willy has 60 books andTammy has 4 × 60 = 240 books
which is 180 more than Willy
Answer:
a
The null hypothesis is 
The alternative hypothesis is 
b

c

d
There no sufficient evidence to conclude that 75% of adults say that it is morally wrong to not report all income on tax returns
Step-by-step explanation:
From the question we are told that
The sample size is 
The number that said it is morally wrong is 
The level of significance is 
The population proportion is 
Generally the sample proportion is mathematically represented as

=> 
=> 
The null hypothesis is 
The alternative hypothesis is 
The standard error is mathematically represented as

=> 
=> 
Generally the test statistics is mathematically represented as

=> 
=> 
Generally the p-value is mathematically represented as

From the the z-table

=> 
=> 
From the calculation 
Hence we fail to reject the null hypothesis
Thus there no sufficient evidence to conclude that 75% of adults say that it is morally wrong to not report all income on tax returns
Answer:
4x -2 = 3 and 4x + -2 = 3
Step-by-step explanation:
-2 + 4x = 3 ---- 4x -2 = 3 ------------ 4x + -2 = 3
+2 +2 - 2 +2
------------------ ----------------
4x = 5 4x = 5
---- ---- ----- -----
4 4 4 4
x = 1.25 or 1 1/4 x = 1.25 or 1 1/4