there are 21 marbles in a blue jar. the blue jars has 3 times as many marbles as a red jar. let m be the number of marbles in th
e red jar
1 answer:
Answer:
m=7
Step-by-step explanation:
1 blue jar = 21 marbles
1 blue jar = 3 red jars
Therefor
21 marbles= 3 red jars
(Now let m=1 red jar)
21= 3m
(Then sine we have 3m dived both sides by 3 to isolate the m)
21/3= 3m/3
7=m
You might be interested in
Answer:
425-65=360
360-65=295
Mrs Chan had at first 295 cookies
The slope is - 3/10
Y over x
Answer:
The ratio is 10 : 1, or 10 to 1
Step-by-step explanation:
Answer:
- A triangle sums to 180
- x-48+2x-164+x= 180
- 4x-212=180
- x= 90
- m<A= 16
- m<M=90
- m<N= 52
- Right Triangle
- Give brainlist
- I do exams and quizzes
Answer:
4(7+3)
Step-by-step explanation:
28 and 12 are both divisible by 4.
28 ÷ 4 = 7
12 ÷ 4 = 3
