Question 7 The Student Council at Woodlands Middle School is planning a field
trip. They polled randomly selected teachers and students and asked
what they want to eat for lunch. The results are shown in the tables
below.
Which of the following statements is true?
Pizza
Burgers
17
19% of the people polled who prefer
burgers are teachers.
Students
23
Teachers
6
29
Total
21
19% of the people polled prefer burgers.
Pizza
79.3%
Students
Teachers
Total
Burgers
81.0%
19.0%
100%
20.7%
19% of the teachers polled prefer
burgers.
100%

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh