Mathematics, 17.11.2020 20:40 stastnylindsey
(10 POINTS AND BRAINLIEST IF FIRST CORRECT)
Tobin is solving the equation 3 (x minus 1.25) = 11.25. His work is shown below.
3 (x minus 1.25) = 11.25. 3 x minus 3.75 = 11.25. 3 x minus 3.75 + 3.75 = 11.25 + 3.75. 3 x = 15. 3 x times 3 = 45 times 3. x = 135.
What mistake did Tobin make?
Tobin did not distribute the 3 correctly.
Tobin should have subtracted 3.75 from each side.
Tobin should have divided by 3.
Tobin did not make a mistake.
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 13:40
In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?
Answers: 1
Mathematics, 21.06.2019 16:10
The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82
Answers: 2
Mathematics, 21.06.2019 16:30
The average human heart beats 1.15 \cdot 10^51.15â‹…10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65â‹…10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.
Answers: 1
You know the right answer?
(10 POINTS AND BRAINLIEST IF FIRST CORRECT)
Tobin is solving the equation 3 (x minus 1.25) = 11.25....
Questions
English, 11.12.2019 19:31
English, 11.12.2019 19:31
World Languages, 11.12.2019 19:31
Mathematics, 11.12.2019 19:31
Mathematics, 11.12.2019 19:31
Mathematics, 11.12.2019 19:31
Social Studies, 11.12.2019 19:31
Biology, 11.12.2019 19:31
Social Studies, 11.12.2019 19:31
Mathematics, 11.12.2019 19:31
