Answer: 
This means that he has to save at least $88 or more to have enough money.
Step-by-step explanation:
He has $37 and he needs to save more (+) but we don't know how much more that is, so that's why that is our unknown value. (x). The sum of them has to be at least 125 or greater.
Subtract 37
It is true due to the commutative property of multiplication. If all of your operations are multiplication, then the integers can move around and you can still get the same answer.
^This is only true if you meant to type (1.8x3)x2.1=(1.8x2.1)x3
If you meant what you typed, then the equation is false. The left side would be 3 times the value of the right side due to the 3 being on the left side and not the right side while without the 3 the two sides would be equal.
Answer:
the student solved the equation incorrectly because the original equation has one solution
Step-by-step explanation:
1/8(40x + 16) = 9x − 7(2x − 1) − 5
<em>use the distributive property a(b + c) = ab + ac</em>
(1/8)(40x) + (1/8)(16) = 9x + (-7)(2x) + (-7)(-1)
5x +2 = 9x − 14x + 7 − 5 <em>combine like terms</em>
5x + 2 = (9x - 14x) + (7 - 5)
<em>here the student make mistake 9x - 14x = 5x</em>
5x+2=-5x+2 <em>add 5x to both sides and subtract 2 from both sides</em>
5x + 5x + 2 - 2 = -5x + 5x + 2 - 2
10x = 0 <em>divide both sides by 10</em>
10x/10 = 0/10
x = 0
From the calculation below, the number of days it will take region d to catch up with region c is 8 days.
<h3>How do we calculate the number of days from the word problem?</h3>
The number of days it will take region d to catch up with region c can be calculated using the following formula:
c = d + 50y ................... (1)
c = the number of boxes sold by region c = 1,800
d = the number of boxes sold by region d = 1,400
y = number of days it will take region d to catch up = ?
Substituting the relevant values into equation (1) and solving for y, we have:
1,800 = 1,400 + 50y
1,800 - 1,400 = 50y
400 = 50y
y = 400 / 50 = 8
Learn about the word problem here: brainly.com/question/3997080.
#SPJ1
