Answer:
set mary is x years old, and helen is y years old.
first sentence:x=2y
second one:4(y-8)=x+4
bring x=2y in 4(y-8)=x+4
=>4y-32=2y+4
=>2y=36
=>y=18
=>x=36
mary:36
helen:18
Answer:
This is not an equation. So it's not possible to find the value of x..
Answer:
17 pieces of fruit in total
Step-by-step explanation:
2x7=14+3=17
1 is 10 dimes that is what I’ll do
Answer:
20165
Step-by-step explanation:
Given:
Length/height (h) of cylindrical test tube = 152 mm
Radius of cylindrical test tube = 6.5 mm
Volume =
Required:
Volume of cylinder to nearest whole number
Solution:
The volume is given as
Take π as 3.14 and plug the values of r and h into the volume formula.
Volume of the test tube = 20165 mm³ (nearest whole number)