At a college bookstore, kyle purchased a textbook and a calculator that cost a total of $94, not including tax. the price of the textbook, t, is $10 less than 3 times the price of the calculator, c. based on these cost, what was the cost of the textbook? a) $21 b) $26 c) $68 d) $78

Step-by-step explanation:

Let the price of the calculator = $x

Therefore, the price of the texbook

= $(3x - 10). Since the prices of t & c =

$94, it implies that,

$(3x - 10) + $x = $94

Solving this together, you have

3x - 10 + x = 94

4x = 94 + 10,

4x = 104

dividing both side by the coefficient of x which is 4, = $26

There fore, calculator price is $26 .

The price of the textbook = $94 - $26

= $68. Answer is C

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%