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Question 10
A principal buys x small tables and y large tables for a computer lab.

Each small table costs $34.
Each large table costs $52.
The total cost of the tables is less than $3,500.
The principal buys fewer than 50 tables.
Which two inequalities could represent this situation?

A.34x+52y<3500
x+y<50

B.34x+52y<3500
x+y>50

C.52x+34y<3500
x+y<50

D. 52x+34y<3500
x+y>50

The prices for different types and amounts of building bricks are given. Select the options that have the same cost per brick.

A.1500 bricks for $1,110.00

B.1300 bricks for $845.00

C.230 bricks for $170.20

D.100 bricks for $75.00

E.35 bricks for $25.90

Respuesta :

For the first one, the answer is a.
cdw2014
The first one is A. The first inequality 34x+52y<3500 represents the cost of the tables. x+y<50 means that fewer than 50 tables all together are bought.

The second one is A, C, and E. Just divide the cost by the number of bricks to get the cost per  brick. A, C, and E are all $0.74 per brick.

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