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vesna_86 [32]
3 years ago
15

a store sells small notebooks for $7 and large notebooks for $14. if a student buys 6 note books for $63, how many notebooks eac

h did she buy
Mathematics
2 answers:
GaryK [48]3 years ago
8 0
She bought 3 large notebooks and 3 small notebooks, because 3 * 14 = 42 and   3 * 7 = 21 and 21 + 42 =63
bija089 [108]3 years ago
4 0
The answer is 3 of each.  3X7=21; 14X3=42, and 42+21= 63.
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Can a -150/10 be classified as both a rational number and a integer
irakobra [83]
Yes! This is because -150/10 can be simplified to be -15, which is a rational number.

The word “rational” sounds like another math word you’ve heard of before. Do you know what it is?

Well, it’s “ratio”!! Ratios can be seen in the forms x:y and x/y.


ANY RATIONAL NUMBER HAS THE ABILITY TO BE WRITTEN AS A RATIO!! This will completely exclude numbers with super long decimal points (ex: 1.2345678809928374737272828...)

This number also meets the requirements of being an integer. An integer is any whole number (this excludes decimals and fractions)

I know it’s written as a fraction. However, the fraction could be simplified, making it -15, which means this is both a rational number and an integer!!
6 0
3 years ago
the ratio of men to women working for a company is 4 to 7. If there are 286 employees total, how many men work for the company?
patriot [66]

Answer:  104 men work for the company

Step-by-step explanation:

    man = 4            x

woman = 7--------- you don't need these so i cross it out.

------------------------

    total = 11         286  

so you get 1144 - 11x

then divide 1144 by 11 and you get x = 104          

3 0
3 years ago
Write the following expression in decimal notation: 234 x 109.
Vikki [24]
234x10^9
=2.34x10^11
5 0
2 years ago
4x+y=17
faltersainse [42]

Answer:

x=4

y=1

Step-by-step explanation:

4x=7y+9

4x+y=17

7y+9+y=17

8y=17-9

8y=8

y=1

so

4x=7*1+9

4x=16

x=16/4

x=4

4 0
2 years ago
Scott Harris can invest $7,000 in a 1-year CD that earns interest at an annual rate of 4 percent compounded monthly. The amount
Tom [10]

Answer:

option A  is answer.

Step-by-step explanation:

Amount of interest earned for compounded monthly  for $1 = 1.040742

Amount of interest earned for compounded quarterly for $1= 1.040604

Difference for $1  =   1.040742 - 1.40604

                 =0.000138

Difference for $7000 = $7000x0.000138

                                    = 0.966

                                      or $0.96

               

8 0
3 years ago
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