Hello! To solve this problem, all you have to do is add and subtract numbers as needed.
A. An expression for this would be 0.85 + 0.50 + 0.15 - 0.30. This is because there is already juice in the mixture. Celina adds more juice in it and she drinks some of it.
B. Now, let’s solve the expression. 0.85 + 0.50 is 1.35. 1.35 + 0.15 is 1.5. 1.5 - 0.3 = 1.2. The amount of juice left in the jar is 1.2 liters.
19x+12y=17
step 1: move the thing that you're looking for to the left side and all the rest to the right side:
(19x +12y)-19x = 17 -19x
12y = 17 -19x
step 2: to find y, you need to get rid of 12. to do so you need to devide everything by that number:
(12y)/12 = 17/12 -19/12 x
y= 17/12 -19/12 x
step 3: simplify of possible. ( in this exercise it isnt)
step 4: rearange the equation if necessary
y= 17/12 + -19/12x
y= -19/12x + 17/12
Similar, they have the same angles but different sides.
Congruent is same sides, same angles.
The other 2 just ignore.
The answer is similar.
First, pass all the rate of inflation to ballons/hour
John: 1 b/15s * 3600 s/h = 240 b/h
Jamie: 1 b/20s * 3600 s/h = 180 b/h
Jake: 180 b/h
Then sum the rates to obtain the total rate
Total ballons per hour: 240 b/h + 180 b/h + 180b/h = 600 b/h
If it passes x hours the number of ballons inflated is 600*x
The number of ballon defective are 600*x/80
The number of ballons effectiveley inflated = 600x -600x/80 = 600x - 7.5x = 592.5x.
Answer: option A)
Answer:
Step-by-step explanation:
The area of a square can be found by 
and the area of a triangle can be found by 
.
The area of the square with side length y is 
.
The area of the triangle with the base 4 and height y is 
Adding the areas together gives
