Answer:
I don't need your brainliest mark but your answer is given below:
Step-by-step explanation:
A) (30/100) × 50 = 15
B) (45/ 100 ) × 2000 = 900
C) ( 4/ 100 ) × $70 = 2.8
D) ( 2.5/ 100) × 5000 = 125
Answer:
There are 60 6th graders in band.
Step-by-step explanation:
Let x represent the number of 6th graders in band. If there are 25% more in 7th grade, you can write it as (5/4)x. (You could also say 1.25x, but I think fractions would be easier in this situation.) Set up an equation:
x+(5/4)x=135
Now solve for x.
(4/4)x+(5/4)x=135
(9/4)x=135
(1/4)x=15
x=60
There are 60 6th graders in band.
Hope I could help you!
Answer:
-6
Step-by-step explanation:
→ Remove the brackets
-1 - 5
→ Simplify
-6
Hi!
Let's find how much bacteria it grows per hour.
2400 - 2000 = 400
bacteria per (divided by) hour
400/6 = 66.7
After 16 hours...
66.7 x 16 = 1067.2
Plus the original amount of bacteria
1067.2 + 2400 = 3467.2
The answer is 3067.2
Hope this helps! :)
-Peredhel
55% of x is 70
0.55 times x=70
divide both sides by 0.55
127.27272727
round
127.3
