Answer:
4 packages
Step-by-step explanation:
450 can be divided by 100 4 whole times, the extra cards cannot be added into a package
Answer:
see explanation
Step-by-step explanation:
Since it is a balance then both sides are the same, that is equal.
The 4 weights represented by circles can be written as 4w, then
4w = 25 ← equation representing the situation
Divide both sides by 4 to find w
w = 25 ÷ 4 = 6.25 ← the weight of 1 circle
Step-by-step explanation:
therefore, 9 students haven't given their speech
Answer:
A graph with points connected by lines to show how something changes in value:
• as time goes by,
• or as something else changes.
Step-by-step explanation:
Answer:
f(a)=2a+4
Step-by-step explanation:
1. multiply 2×a, which equals to 2a
2. then multiply 2×3, which equals to 6
3. then you'll get f(a)=2a+6-2
4. subtract 6 and 2
5. once that is done your answer will be f(a)=2a+4
