Is Suzy's answer reasonable?
A.
Yes, it is reasonable because if you add two numbers, you will get a number that is greater than either of the two numbers.
B.
No, it is not reasonable because if you start at –2, you would move 3 places to the left and get –5.
C.
No, it is not reasonable because if you start at –2, you would move 3 places to the right and get +1.
Answer: 15 girls
Step-by-step explanation:
27 - 3 = 24
24/2 = 12
12 boys
12 + 3 = 15
15 girls
15+ 12 = 27
Answer: 15
Step-by-step explanation: Personally, I would try finding the number of boys first and then subtract the number of total students by the number of boys. To find the boys, you need to subtract three from 27 since those 3 are girls which leaves you with 24. It says there is half the number of boys than girls when you subtract 3 so 24 divided by 2 is 12. The number of boys is 12 so now all you have left to do is subtract 27-12 to find the number of girls, which is 15. I hope this helped you and sorry if it’s really long :)
Answer:\
x ≥ 6
Step-by-step explanation:\
4x -30≥ - 3x + 12
add 30 to bot size
4x - 30 + 30 ≥ -3x + 12 + 30
simplify
4x ≥ -3x + 42
add 3x to bot sides
4x +3x ≥ -3x+42+3x
simplify
7x ≥ 42
divide bot sides by 7
7x/7 ≥ 42/7
simplify
x ≥ 6
to blue, how many red balls are there if 80 blue
balls are in the box?
a. 40
b. 60
The correct option is b. 60 if there are 80 blue balls by setting up a proportion using the given ratio and the number of blue balls.
To find the number of red ball to determine the ratio between red and blue balls. In this case, the ratio is 3:4 (red to blue).
Let x represent the number of red balls.
The proportion can be set up as
(3/4) = x/80.
Cross-multiplying gives:
4x = 3 * 80,
which simplifies to
4x = 240.
Dividing both sides of the equation by 4,gives:
x = 60.
Therefore, there are 6in the box by using ratio and proportion
Learn more about ratios here:
#SPJ6
Answer:
B, 60
Step-by-step explanation:
red : blue
3 : 4
3 (20) : 4 (20)
60 : 80