Andre's school orders some new supplies for the chemistry lab. The online store shows a pack of 10 test tubes costs $4 less than a set of nested beakers. In order to fully equip the lab, the school orders 12 sets of beakers and 8 packs of test tubes. 3. Write an equation that shows the cost of a pack of test tubes, t, in terms of the cost of a set of beakers, b. a. The school office receives a bill for the supplies in the amount of $348. Write an equation witht and b that describes this situation. b. Since t is in terms of b from the first equation, this expression can be substituted into the second equation where t appears. Write an equation that shows this substitution. C. d. Solve the equation for b. е. How much did the school pay for a set of beakers? For a pack of test tubes?

Andre's school orders some new supplies for the chemistry lab. The online store shows a pack of 10 test tubes costs $4 less than a set of nested beakers. In order to fully equip the lab, the school orders 12 sets of beakers and 8 packs of test tubes. 3. Write an equation that shows the cost of a pack of test tubes, t, in terms of the cost of a set of beakers, b. a. The school office receives a bill for the supplies in the amount of $348. Write an equation witht and b that describes this situation. b. Since t is in terms of b from the first equation, this expression can be substituted into the second equation where t appears. Write an equation that shows this substitution. C. d. Solve the equation for b. е. How much did the school pay for a set of beakers? For a pack of test tubes?

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

Question

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Andre's school orders some new supplies for the chemistry lab. The online store
shows a pack of 10 test tubes costs $4 less than a set of nested beakers. In order to
fully equip the lab, the school orders 12 sets of beakers and 8 packs of test tubes.
3.
Write an equation that shows the cost of a pack of test tubes, t, in terms of the
cost of a set of beakers, b.
a.
The school office receives a bill for the supplies in the amount of $348. Write an
equation witht and b that describes this situation.
b.
Since t is in terms of b from the first equation, this expression can be
substituted into the second equation where t appears. Write an equation that
C.
shows this substitution.
d.
Solve the equation for b.
е.
How much did the school pay for a set of beakers? For a pack of test tubes?
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