Answer:
24x - 40
Step-by-step explanation:
8 x 3 = 24
8 x 5 = 40
24x - 40
Answer:
d. 443.73
Step-by-step explanation:
i got it right on the test
Answer:
a) 3034
b)249
Step-by-step explanation:
jellyb beans: 7*135= 945
choc buds: 9*121=1089
smarties: 12*70=840
liquorice sticks: 32*5=160
a) the total number of sweets: 945 + 1089 + 840 + 160 = 3034
b) the difference between the number of choc buds and the number of smarties: 1089 - 840 = 249
<em>P.S. Hope it helps. If you have any questions, feel free to ask them in the comment section below. I'll be happy to help. Have a wonderful day!</em>
3 gallons of acid = 100% concentration acid
? (water+acid) gallons = 15 concentration acid
Note: Every gallon of water added reduces the percentage concentration of acid. Therefore, the relationship is inverse proportionality.
Solution:
Total number of gallons (water+acid) = (3*100)/15 = 20 gallons
Therefore, gallons of water = 20-3 = 17 gallons
Considering the situation described, we have that:
a) The critical value is of z = -1.645.
b) Since the test statistic is less than the critical value, we should reject the null hypothesis H0.
<h3>What is the critical value?</h3>
We have a left-tailed test, as we are testing if the proportion is less than a value. Hence the critical value is z with a p-value equals to the significance level, hence z with a p-value of 0.05, hence z = -1.645.
<h3>What is the decision?</h3>
Considering the test statistic, for a left-tailed test, we have that:
- Less than the critical value: Reject H0.
- Equal or greater: Do not reject.
In this problem, z = -2.39 is less than -1.645, hence we should reject the null hypothesis H0.
More can be learned about the test of an hypothesis at brainly.com/question/13873630
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