Answer:
Courtney is bringing 8 snacks
Step-by-step explanation:
Chelsea's snacks are represented as 2x.
2x means <u>2 · (a number)</u>
If Chelsea brought <u>16 snacks</u> and the <u>amount of snacks represented by 2x</u>, we have to figure out <u>what times 2 equals 16.</u>
In order to find out, we have to <u>divide</u>.
16 ÷ 8 = 2
This means 2 · 8 = 16
Since the amount of snacks Courtney brings is represented as <u>"x"</u>, she would have brought 8 snacks.
Hope this helped! :)
40% would transfer into the decimal value of .40 so all you have to do is multiply .4 x 75 that’s going to give you the answer. It would be 30
Answer:
a) Alternative hypothesis, 
b) z = -2.91, Pvalue = 0.002
c)Option C. Reject H_0. There is enough evidence at the 1% level of significance to reject the claim.
Step-by-step explanation:
a) Null hypothesis, 
Alternative hypothesis, 
b) Standardized test statistic
Level of significance, 





z = -2.91
Checking the p-value that corresponds to z = -2.906
P-value = 0.002
c) What is the proper decision
P-value = 0.002
Level of significance, α = 0.01
0.002 < 0.01
Since Pvalue < α, the null hypothesis H₀ should be rejected.
Option C is the correct option.
Answer:
Step-by-step explanation:
7 x > 4 x + 100
7 x - 4 x > 100
3 x > 100
x > 100 : 3
x > 33.33
<u><em>Answer: they have to sell 34 pizzas to make a profit.
</em></u>
Answer:
2x+5y=-15
Step-by-step explanation:
2x+5y=d
2(4)+5(-2)=d
8-10=d
-2=d