Answer:
20,600, 6, 3.5, 5
Step-by-step explanation:
I GOT ANSWER AFTER GETTING IT WRONG
Answer:
x = 3
Step-by-step explanation:
The right triangles are all similar, so the ratio of short leg to hypotenuse is the same for both marked triangles.
short leg / hypotenuse = x/(x+3) = (x+3)/12
12x = (x +3)^2 . . . . . multiply by 12(x+3)
x^2 -6x +9 = 0 . . . . put in standard form
(x -3)^2 = 0 . . . . . . . factor
x = 3 . . . . . the value of x that makes the factor(s) zero
Answer:
a) one solution, x=3
b) see below
Step-by-step explanation:
2x+3=4x-3
2x=6
x can only be=3
I think it is the top cube.
Answer: 9:5
Step-by-step explanation:
If there are a total of 28 students in class, 10 are girls
Step 1: find the number of boys;
Number of boys = Total number of students- number of girls
= 28 - 10 = 18
Number of boys = 18
Step 2: the ratio of boys to girls can therefore be written as 18:10 or 18/10 in fraction form.
To put in the simplest form, we divide by the greatest common factor as both 18 and 10 are divisible by 2, so the simplest form is 9:5 or 9/5
1£/10= 9/5, in other words, there are 9 boys for every 5 girls in the class.