Answer:
1 =30 km
1/3=7,5 km
5=150
Im not sure tho but should be fine
Answer: it’s 8/10, 3/5, 3/4, 1/2
Step-by-step explanation:1/2 is greater than the other numbers
Answer:
a) 2.5
b)2.33
Step-by-step explanation:
a)
Bring the numerals to the right hand side and the x terms to the left hand side
Simplify
Divide 3 on both sides, to get x
b)
Bring the numerals to the right hand side and the x terms to the left hand side
Simplify
Answer:
3(n+5)=-30
Step-by-step explanation:
Three times the sum of a number and 5 is - 30
Vocabulary:
times = multiplication, represented with *
sum = addition, represented by +
unknown number = n
Three * the sum of a number and 5
The sum of a number and 5 is the same as saying n + 5
So we are multiplying 3 by n + 5
Because n is an unknown variable we have to separate the sum of n and 5 from being multiplied by 3 with parenthesis. We do this because if we want to multiply 3 by the sum of n and 5. If we put 3 * n + 5 we are only multiplying the unknown variable by 3 not including the 5 that is added to it.
So we get 3( n + 5 ) is -30
3(n+5)=-30 is the answer.
Answer:
6 hours. ( I DID IT USING PROPORTIONS!)
Step-by-step explanation:
houses/hours
130/2.5= 312/x
(cross multiply)
130x = 780
130x/130 = 780/ 130 (divide each by 130)
6 = h
