a) 24% said they wanted to learn french.
To find total number of students surveyed divide the number of students that want to learn French by the percentage:
12 / 0.24 = 50
There were 50 students surveyed.
b) 36% wanted to learn Spanish, multiply 50 by 36%
50 * 0.36 = 18
18 students wanted to learn Spanish.
She can give 7.29 ft or 7.3 ft of yarn to her 17 students given that the total measurement of the yarn is 124 ft.
solution:
124ft/17students - the operation used is division, dived 124ft w/c is the measurement of the yarn by 17 students.
7.294117647058824 - simplify the answer by rounding it off, at least one or two decimal points; making it 7.29 ft or 7.3ft
Answer:
a = - 10.5, b = 57.5
Step-by-step explanation:
Evaluate h(3) by substituting x = 3 into h(x)
h(3) = 3a + b = 26 → (1)
g(21) = 2(21) + 5 = 42 + 5 = 47
h(1) = a + b, thus
3a + b = 26 → (1)
a + b = 47 → (2)
Subtract (2) from (1) term by term to eliminate the term in b
2a = - 21 ( divide both sides by 2 )
a = - 10.5
Substitute a = - 10.5 into either of the 2 equations for value of b
Substituting in (2)
- 10.5 + b = 47 ( add 10.5 to both sides )
b = 57.5