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Natalija [7]
3 years ago
15

A textbook store sold a combined total of 312 history and psychology textbooks in a week. The number of psychology textbooks sol

d was 84 less than the number of history textbooks sold. How many textbooks of each type were sold?
Mathematics
1 answer:
Irina-Kira [14]3 years ago
8 0

Answer: History textbooks sold: 198

Psychology: 114

Step-by-step explanation: 312- 84= 228

228 divided by 2= 114

Add 84 to 114 to represent the history textbooks since they have more.

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an item is regularly sold at $40. kala bought it at a discount of 35% off the regular price. how much did kala pay
KonstantinChe [14]

To solve this problem, we must first find the discount amount, and then subtract this amount from the total price of the item.

To find the discount amount, we must find 35% of $40. To do this, we must first convert 35% to its decimal equivalent by dividing 35/100. We do this because percentages are parts out of a total 100 percent, thus this fraction represents an equivalent value that we can multiply by other numbers. Using our knowledge that 35/100 = 0.35, we can now set up our expression:

35% of $40 (keep in mind that the word "of" refers to multiplication in math)

0.35 * 40

To solve, we just multiply these two numbers together, which gives us 14.

This means that Kala got a discount of $14 off of the original price of $40. To find out how much she paid for it, we must subtract $14 from $40, as modeled below:

$40 - $14 = $26

Therefore, Kala paid $26 for the item.

Hope this helps!

5 0
3 years ago
The product of w and 3​
DaniilM [7]

Answer:

w x 3 or w(3) or even w3

Step-by-step explanation:

I just know, trust me!

6 0
2 years ago
Read 2 more answers
If c(x)=5/x-2 and d(x)=x+3, what is the domain of (cd)(x)?
pickupchik [31]

Answer:

The domain is all Real x except x = 2 .

Step-by-step explanation:

(cd)(x) = ( 5 / x-2) * x+3

=  5(x+3)/(x-2)

The domain is all Real x except x = 2 .

(because when x = 2 (cd)(x) is undefined).

3 0
3 years ago
Keith bought 4 shirts for $36 at this rate what would his cost be for 7 shirts
Norma-Jean [14]

Answer:

$63

Step-by-step explanation:

we know that

Keith bought 4 shirts for $36

so

using proportion

Find out would be the cost for 7 shirts

Let

x ----> the cost for 7 shirts

\frac{4}{36}\ \frac{shirts}{\$}=\frac{7}{x}\ \frac{shirts}{\$}\\\\x=36(7)/4\\\\x=\$63

3 0
3 years ago
Order the numbers from least to greatest.<br><br> 9/5. -2.5, -1.1. -4/5, 0.8
spayn [35]
-2.5, -1.1, -4/5,0.8,9/5
7 0
3 years ago
Read 2 more answers
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