The answer is 6
- hope this helps ♡
Answer:
Grace is the faster swimmer
Step-by-step explanation:
because Grace can do 25 m in .5 min, whereas Melanie can do 65 m in 1 minute, or 32.5 m in .5 min.
equation-
300 ÷ 5 = 60
325 ÷ 5 = 65
Answer: a). 3kg b). 1kg
Explanation:
let x be the mass of nails
let y be the mass of the box
We can write an equation base on the information:
x + y = 4kg
3x + y = 10kg (screw is 3 times heavier than nail)
We can solve this system of equation using elimination method to find x:
3x + y = 10
x + y = 4
——————
3x + y = 10
-1(x + y = 4)
——————
3x + y = 10
-x - y = -4
——————
2x = 6
x = 6/2 = 3
Now that we have x we can find y:
3x + y = 10
3(3) + y = 10
9 + y = 10
y = 1
Answer:
w + 2.3 > 18
Step-by-step explanation:
w + 2.3 is the representation of a number w added to 2.3. We also know that this is more than (>) 18. Overall this can be represented by:
w + 2.3 > 18
