How to be good at math???

Mathematics

1 answer:

nexus9112 [7]3 years ago

4 0

Step-by-step explanation:

Do more and more practice daily

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2(x + 31.5) = 3x + 24

Salsk061 [2.6K]

Answer:

2(x + 31.5) = 3x + 24

2x+63= 3x+24

2x+63-63=3x+24-63

x=39

8 0

3 years ago

Part A: If (26)x = 1, what is the value of x? Explain your answer. (5 points)

larisa86 [58]

Answer: Part A- x= 1/26 or 0.038, Part B=1/50

Step-by-step explanation:

i just divided 26 from x in and 50 from x in b

5 0

3 years ago

Nathan rolls a number cube and records the result of each roll in the table.

Sergeeva-Olga [200]

Answer:

True statements:

A. The relative frequency of rolling 4 is $\dfrac{2}{9}.$

E. The experimental probability of rolling 1 is less than the experimental probability of rolling 6.

Step-by-step explanation:

Nathan made 11 + 16 + 14 + 20 + 12 + 17 = 90 rolls altogether. Consider all options:

A. The relative frequency of rolling 4 is

$\dfrac{20}{90}=\dfrac{2}{9}.$

This option is true.

B. The experimental probability of rolling 3 is $\dfrac{14}{90}.$ The theoretical probability of rolling 3 is $\dfrac{1}{6}=\dfrac{15}{90}.$ therefore, the experimental probability of rolling 3 is less than the theoretical probability. This option is false.

C. The experimental probability of rolling 2 is $\dfrac{16}{90}$ and the theoretical probability of rolling 2 is $\dfrac{1}{6}=\dfrac{15}{90}.$ The experimental probability of rolling 2 is smaller than the theoretical probability of rolling 2. Option C is false.

D. The relative frequency of rolling 5 is $\dfrac{12}{90}=\dfrac{2}{15}\neq \dfrac{2}{13}.$ This option is false.

E. The experimental probability of rolling 1 is $\dfrac{11}{90}$ and the experimental probability of rolling 6 is $\dfrac{17}{90}.$ Since $\dfrac{11}{90}$ then the experimental probability of rolling 1 is less than the experimental probability of rolling 6. This option is true.