The answer: joe’s dad uses 2.5 boxes of pancake mix to make 20 pancakes.
question number one is 15 ft
question number two is 7 MI
tbh i forgot how to do the 3rd one
The decimal 0.75 is equivalent to 3/4
1.5 multiplied by 2/3 is 1. Therefor we must multiply 7.05 buy 2/3 which is 4.7 So the cost per metre is 4 pounds 70 pence. We multiply 1 by 3.5 to get 3.5, so we must multiply 4.70 by 3.5 which is 16.45
1. 4.70
2. 16.45
Answer:
14
Step-by-step explanation:
Let's say Devaughn is x amount of years old and Sydney is y amount of years old.
Since the sum of their age is equal to 56, you would make the equation:
x+y=56
Now, set that aside and move on to the next step.
They are saying the Devaughn (x) is 3 times the number of years Sydney (y) is. So in mathematical terms you can create an equation stating:
3y=x because 3 times Sydney's age (y) would be Devaughn's age (x).
With the equations:
3y=x
x+y=56
You can plug in x in (x+y=56) as 3y because the other equation is saying that x is equal to 3y. So, that will give you 3y+y=56. Now, combine like terms or just simplify.
Simplifying 3y+y=56 would give you 4y=56, now just divide 56 by the 4 and you will get 14. This is saying that y=14. Now plug in y for the other equation (x+y=56):
x+14=56
Subtract 56 by 14 and it'll give you 42. That is saying x=42.
The question is asking for Sydney's age and i substituted her for the letter y which equaled 14.
Hope this helped :)