Answer:
Four pounds of strawberries costs $12: y=3x
Ben reads 5 novels per month: y=5x
Maya puts $4 into her bank account each week: y=4x
Answer:
x=26
Step-by-step explanation:
let take the 3rd angle of the triangle y
2x + 76 + y = 180 ( angle sum property)
y = 180 ‐ 76 ‐ 2x
y = 104 ‐ 2x
5x ‐ 2 + y = 180 ( linear pair)
5x‐2+104‐2x = 180 ( y = 104 ‐ 2x)
3x+102=180
3x=180‐102
x=78/3
x=26
hope this ans will help u
8.
a) To find how many matches are used to make shape 9, you substitute 9 in as n, so your equation looks like
m = (4 × 9) + 1
m = 36 + 1
m = 37
So the amount of matchsticks is 37
b) Now we can substitute in 21, but place it where m is, so we get:
21 = (4 × n) + 1
- 1
20 = 4 × n
÷ 4
5 = n
So your answer is shape number 5.
9. You can write this out as an equation:
(6 × l) + (8 × p) = 640
Because you know that each letter is 100, you can substitute 100 in for l and get
(6 × 100) + (8 × p) = 640
600 + (8 × p) = 640
- 600
8 × p = 40
÷ 8
p = 5
So each pen is 5g.
I hope this helps!
Answer:
Step-by-step explanation:
Given
Initially
-- coffee
-- coffee
Joe drank 2oz coffee; So, we have:
--- coffee
Joe added 2oz cream; So, we have:
--- coffee --- cream
JoAnn added 2oz cream and stirred. So, we have:
--- coffee --- cream
JoAnn drank 2oz from the drink; the amount of drink JoAnn drank is:
Amount of cream left is:
Take LCM
So, we have:
--- cream
cream
The ratio is:
Multiply by 7
Divide by 2