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lorasvet [3.4K]
3 years ago
14

I really need your help guys im pretty lost..

Mathematics
1 answer:
lions [1.4K]3 years ago
4 0
Mix 2.3 cement and 5 gravel

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Who knows how to do this I TRULY NEED HELP
wariber [46]

Answer:

Yes

Step-by-step explanation:

two of the different sides match

8 0
3 years ago
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The probability that a student uses Smarthinking Online Tutoring on a regular basis is 0.31 . In a group of 21 students, what is
Ivenika [448]

Answer: 0.0241

Step-by-step explanation:

This is solved using the probability distribution formula for random variables where the combination formula for selection is used to determine the probability of these random variables occurring. This formula is denoted by:

P(X=r) = nCr × p^r × q^n-r

Where:

n = number of sampled variable which in this case = 21

r = variable outcome being determined which in this case = 5

p = probability of success of the variable which in this case = 0.31

q= 1- p = 1 - 0.31 = 0.69

P(X=5) = 21C5 × 0.31^5 × 0.69^16

P(X=5) = 0.0241

4 0
3 years ago
Solve: 3(5x - 8) = 6x + 39
soldier1979 [14.2K]

Steps to solve:

3(5x - 8) = 6x + 39

~Distribute left side

15x - 24 = 6x + 39

~Add 24 to both sides

15x = 6x + 63

~Subtract 6x to both sides

9x = 63

~Divide 9 to both sides

x = 7

Best of Luck!

6 0
3 years ago
Jake makes and sells pies. He sells each pie for $5.75. The materials to make each pie costs Jake $4.00. The boxes Jakes put the
Studentka2010 [4]

Answer:

A

Step-by-step explanation:It Said on Usa Test prep

3 0
3 years ago
A teacher's age is 6years greater then 2 times a students age.a principals age is 10 years greater than 3 times the students age
snow_tiger [21]

Answer: 4x + 5

Step-by-step explanation:

6 0
3 years ago
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