At first, we need to find x.
QR = LN
2x+1 = 3x-7
x=8
Substitute value of a=8 into QR = 2x+1.
QR = 2*8+1 = 17
QR =17
Answer:
The Science Center charge less than the Dino Discovery museum for more then 10 students
Step-by-step explanation:
Let us assume that the number of students are x .
Let us assume that the total charge for x students be y.
As given
Mrs. Williams is deciding between two field trips for her class.
The Science Center charges $120 plus $5 per student.
Than the equations becomes
y = 120 + 5x
The Dino Discovery Museum simply charges $7 per student.
y = 7x
Than





Therefore the Science Center charge less than the Dino Discovery museum for more then 10 students.
Answer:
Amount of B used = 276.6 millimeters
Step-by-step explanation:
A = A millimeters
B = A + 400 millimeters
Hence
Taking an overall balance
(0.16 x A) + (0.2)(A+400) = 476
0.16A + 0.2A + 80 = 476
A = 1100 millimeters
B = 1100 + 400 = 1500 millimeters
Hence using direct proportion
2600 --------------------476
1500 ---------------------X
X = 276.61538
Amount of B used = 276.6 millimeters
Answer: 2⁹5³ = 64,000
<u>Step-by-step explanation:</u>
There are 9 questions with 2 options (true or false) = 2⁹
There are 3 multiple questions with 5 options = 5³
true/false questions AND multiple choice questions
2⁹ x 5³ = 2⁹5³