1) in one minute for first wiil be 1/20
the other 1/30, it means that A paint in one minute 1/20 and B 1/30 then A+B in one minute 1/20 + 1/30 = 3+2/60 = 5 / 60, 5/60 = 1/12
if in one min they make 1/12 then in 12 min they paint all the wall
Answer:
25
Step-by-step explanation:
twenty-six=26
2 tens 6 ones= 26
25=25
20+6=26
25 is the odd one out.
Step by step explanation: -28-15
When adding negative with positive it will always be negative so for this question, subtract -28 with 15 which would be -43. So -43 would be the temperature in the evening.
Using exponents x * x is written as 
<h3>What is exponents?</h3>
Exponents in mathematics is a term that refers to the powers in which a number is raised. Usually the number representing the exponents is usually written upwards in lower font to the left-hand side of the main number or value.
<h3>solving the problem</h3>
x . x is same as x multiplied by x
therefore x . x = x * x
since the x is two the product is written as . where the two shows how many times x appeared.
Read more on exponents here: brainly.com/question/11975096
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Answer:
67667.7
Step-by-step explanation:
let the number= Y
the question simply means that 0.15 percent of Y which give 10.5
so, let find Y:
0.15% of Y 10.15
<h3>Stating the mathematical equation</h3>
0.15/100×y = 10.15
0.0015y= 10.15
divide bothsides by 0.0015
0.0015y/0.0015= 10.15/0.0015
y=6766.66
y= 6766.7 approximately
<h3>therefore, 0.15% of 6766.7 is 10.5</h3>
