Answer:
Let x represents the week and y represents the seashells
As per the statement:
Dora has 10 seashells and plans to add 2 shells every week.
"2 shells every week" means 2x
⇒y = 10 + 2x
It is also given, Jerri has 4 seashells and plans to add 5 shells every week.
"5 shells every week" means 2x
⇒ y = 4 + 5x
The system of equation would be used:
y = 10 + 2x
y = 4 + 5x
Since, the girls have the same number of seashells
⇒
Subtract 4 from both sides we get;

Subtract 2x from both sides we get;

Divide by 3 both sides we have;
x = 2 weeks.
Therefore, the number of weeks would it be before the girls have the same number if seashells is, 2 weeks.
Answer:
well the three goes inside the division box and the 4 goes in the outside. Then you see how many times 4 goes into 3 which is 0 then you add a zero next to the three and a decimal point in between the 3 and 0. next, you see how many times 4 goes into 30 which is 7 then you subtract 30-28 which is 2 then you add another 0 and see how many times 4 goes into 20 which is 5 times then you get your answer .75
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
50???
Step-by-step explanation:
xbbxx and night and night and