If there are 12 girls and 15 boys in a class, which ratios are true?
2 answers:
Answer:
12 girls to 27 students
5 boys to 9 students
15 boys to 12 girls
Step-by-step explanation:
The first thing we have to know is that the total number of students is 27
.
- 12 girls to 27 students is correct because there are 12 girls out of a total of 27 estudiantes
- 5 boys to 9 students is correct because it uses a common denominator that is 3 (boys: 15 / 3 = 5 and students: 27 /3 = 9)
- 15 boys to 12 girls is saying the same of the statement
The last one 3 girls to 5 boys does not have a common denominator for both factors so this last option is false
.
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Answer:
-4 (as - and + = -)
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer:
x=2
Step-by-step explanation:
let the number be x
9x-8=6+2x
9x-2x=6+8
7x=14
x=14/7
x=2
When the triangle is a right triangle, you can use the Pythagorean theorem. The formula would be
c^2 = a^2 + b^2
If a = 21 and c=29, thus
b^2 = c^2 - a^2
b^2 = 29^2 - 21^2
b^2 = 400
b = square root (400)
b = 20 units.
Thus, the answer is <span>D) B = 400</span>
4:9
24:x
Set up a proportion
4/9=24/x
4x=216
x=54
a) 54 is your answer
hope this helps, and please give brainliest if it does!
1. 15*15= 225
2. 8*8= 64
3. 225+64= 289
4 . 17*17=289
