Answer:
he needs 20.25 bags of sand and it would cost her 80.79
Step-by-step explanation:
150cm*90cm*15cm=202,500cm^3 this is how much sand she needs to fill it
202,500cm^3/10,000cm^3=20.25 this is how many bags he needs
3.99*20.25=80.79 this is how much it'll cost him for all 20.25 bags
Answer:
89.
Step-by-step explanation:
There are 5 scores.
So the Average = (85 + 90+95+100+ 75)/5
= 445/5
= 89.
Answer:
x=-6, y=1
Step-by-step explanation:
Let's solve your system by substitution.
y=x+7;−2x−11=y
Step: Solve y=x+7 for y:
y=x+7
Step: Substitute x+7 for y in −2x−11=y:
−2x−11=y
−2x−11=x+7
−2x−11+−x=x+7+−x(Add -x to both sides)
−3x−11=7
−3x−11+11=7+11(Add 11 to both sides)
−3x=18
−3x/
−3
=
18/
−3 (Divide both sides by -3)
x=−6
Step: Substitute−6 for x in y=x+7:
y=x+7
y=−6+7
y=1 (Simplify both sides of the equation)
Answer:
x=−6 and y=1
5/7 4/6 Do a cross multiplication 6*5 and 7*4
6*5 7*4
30 28
30 is bigger than 28. Therefore 5/7 is greater than 4/6
Yes 5/7 is greater than 4/6.
I hope it is not that complicated.
Answer:
b.) 0.30
Step-by-step explanation:
15/50 = 0.3
