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Jobisdone [24]
3 years ago
5

Can someone help me solve for b? 2(b + 3) = 12

Mathematics
2 answers:
Akimi4 [234]3 years ago
7 0
2b+3=12
-3 -3
2b=9
B=4.5
Tems11 [23]3 years ago
5 0

Answer:

b=3

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation.

2*(b+3)-(12)=0

Then solve!

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2) The 114 students in the ninth grade at Mathville High are going on a field trip to the science
9966 [12]

Answer:

4 buses

Step-by-step explanation:

40b=114+114/10

40b=114+11.4

40b=125.4

b=3.135

The answer is 4 because you have to round up to get the remaining people.

5 0
3 years ago
A normal random variable with mean and standard deviationboth equal to 10 degrees Celsius. What is the probability that the temp
Korvikt [17]

Answer:

0.57142

Step-by-step explanation:

A normal random variable with mean and standard deviation both equal to 10 degrees Celsius. What is the probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit?

We are told that the Mean and Standard deviation = 10°C

We convert to Fahrenheit

(10°C × 9/5) + 32 = 50°F

Hence, we solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 59 °F

μ is the population mean = 50 °F

σ is the population standard deviation = 50 °F

z = 59 - 50/50

z = 0.18

Probability value from Z-Table:

P(x ≤59) = 0.57142

The probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit

is 0.57142

4 0
3 years ago
Shanika read some pages on Monday. On Tuesday, she read 6 pages. She read 13 pages
astraxan [27]

Answer:

7

Step-by-step explanation:

total pages= 13

on tuesday = 6

so on monday = 13-6

8 0
3 years ago
The sum of two numbers is 61. If the larger number is seven less than three times the smaller number, find both numbers.
Julli [10]

Answer:

x = 17, y = 44

Step-by-step explanation:

3 0
2 years ago
Question is below<br> ‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎
attashe74 [19]

Answer:

45=9⋅5 , so 2√45 is the same as 2⋅√9⋅5 . The √9=3 , so a 3 can be removed. leaving 2⋅3√5 , or 6√5

6 0
2 years ago
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