a) A total of 24 students are in

evighetl2b

evighetl2b

Answered question

2022-03-18

a) A total of 24 students are in Mathy's class. The number of girls in the class is 3 more than twice the number of boys. How many boys and girls are there in the class? Use substitution method in solving the problem.
b) Drei has 22 coins that consist of one peso and five pesos. The coins total forty-six pesos. How many one peso and five pesos does he have? Use elimination method in solving the problem.

Answer & Explanation

teertallectutl

teertallectutl

Beginner2022-03-19Added 2 answers

Step 1
"Since you have asked multiple question, wewill solve the first question for you. If youwant any specific question to be solved thenplease specify the question number or postonly that question."
Given:
Total no. of students =24
Let no. of boys =x
Hence
,No. of girls =3×2x
To determine:
No. of boys and girls =?
Step 2
Solution:
We can construct a linear equation in one variable and then find the value of the concerned variable = ?
Therefore,
The linear equation in one variable is
As given:
No. of boys + No. of girls = Total Students
(3+2x)+x=24
3+3x=24
3x=243
3x=21
x=7
Skyler Newman

Skyler Newman

Beginner2022-03-20Added 2 answers

Step 3
Sо,
We get the value of x=7 (No. of boys)
Therefore:
No. of girls=3+2x=3+2(7)=3+14=17
Hence,
No. of girls=17
No. of boys=7

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