Ok, so 11:9
11-9 = 2
which means that 124= 2:1
124/2 = 62
so 62:0
now 11 x 62= 682
9 x 62= 558
so the ratio is 682:558
now 682 + 558 = 1,240
There are 1,240 total students in the school. 682 boys and 558 girls
Answer:
.
Step-by-step explanation:
The given function is
.
We want to find a rule for
.
Let
.
Interchange x and y.
.
Solve for y.
.
Expand
.
Group y-terms
.
Factor
.
.
.
For 7: because of the decimal place in the 0.6 it's not a huge number and it's not possible to get a big number like 15000
For 8: because again a fraction dividing is not going to do much you can't get a big difference like the number 30.
Answer: The temperature of the object after one hour is 12.9°C to the nearest tenth of a degree
Step-by-step explanation:
Please see the attachments below
Answer:
82.5 grams
Step-by-step explanation:
11*7.5=82.5