Answer:
15 boys and 25 girls
Step-by-step explanation:
The sum of boys (b) and girls (g) is given as 40:
g + b = 40
The number of girls is 2 times the number of boys minus 5:
2b - 5 = g
First formula can be rewritten as g = 40 - b
Then you can substitute this for g in the second, and you get:
2b-5 = 40-b
Which simplifies to:
2b + b = 40 + 5
3b = 45
b = 15
g = 40-15 = 25
15 boys, 25 girls.
Answer: there are 8 cars. Each car has 4 tires. How many tires are there in all?
In this case you’ll have to do 8 x 4 because there are 8 cars and to know how many tires you’ll have to count 4 times the number of cars, 8.
Hope this helped and pls mark as brainliest!
~ Luna
Answer:
Step-by-step explanation:
The functions, missing from the question are:
Required
Determine the domain
To get the domain, means we want to get the possible values of x.
(a)
Equate 3 - x to 0
Solve for x
From the calculated value of x above;
When x exceeds 3; f(x) = undefined
So: the domain is:
(b)
Equate 3x to 0
Solve for x
From the calculated value of x above;
When x falls below 0; f(x) = undefined
So: the domain is:
Answer:
C and D
Step-by-step explanation:
C: (2,0)
D: (0,4)
If from 0 - 10 there is 1 number ending in 3 (3) we'll aplly the same logic to 500.
Between 0-10 there is 3. Between 10 - 20 there is 13. Between 20-30 there is 23. Between 30-40 there is 33, etc.
If we divide 500 into 10 we get 50:
500 / 10 = 50
That means there are 50 groups of 10 in the number 500. If we know that every 10 numbers has 1 ending in 3, we multiply 1 by 50:
1 x 50 = 50
So, our conclusion is, that there are 50 numbers ending in 3 between 10 and 500.
Hope it helped,
BioTeacher101
