Answer:
Yes. The male and female consumers differ in the amounts they spend.
Step-by-step explanation:
We can express the null and alternative hypothesis as:

It is assumed a significance level of 0.05.
The standard deviation of the difference of means is calculated as:

The test statistic is

The degrees of freedom are:

The P-value for t=10.11 is P=0, so it is smaller than the significance level. The null hypothesis is rejected.
We can conclude that male and female consumers differ in the amounts they spend.
<u>Answer:</u>
,
,
, 
<u>Step-by-step explanation:</u>

First, we subtract 128 from both sides:

Then, we subtract
from both sides:

Rewrite the equation:

Insert and solve:

<em>Please give Brainliest</em>
Answer:
-9x+1 = -x +17
-8x = 16
x = -2
Step-by-step explanation:
Answer:
CD = 45
Step-by-step explanation:
CE = 180
( x + 6 ) + ( 4x - 21 ) = 180
5x - 15 = 180
5x = 195
x = 39
substitute x in CD
CD = x + 6
CD = 39 + 6
CD = 45
There is one pizza in a whole pizza