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kotegsom [21]
3 years ago
6

Word Problems

Mathematics
2 answers:
e-lub [12.9K]3 years ago
4 0

Answer:

just please like

Step-by-step explanation:

dont be rude

Daniel [21]3 years ago
4 0

Answer:

Step-by-step explanation:So you know Sara had $211 total to spend on her books, so we can set our equation equal to $211. You also know she bought 6 books but you don't know what they each cost. We can assume that they cost the same amount, so we can define this as 6x because you know you bought six books for some unknown amount of money. We also know she didn't spend $13 of the dollars, so we can think that she actually only spend $198 (211-13) on books.

So our equation would look like:

$211 = 13 + 6x   We subtract 13 from each side to solve for x

-13       -13

198 = 6x             We divide each side by 6 to get x alone because any number over itself is 1

 6       6

x = $33               Solve. So Sara spend $33 for each

You might be interested in
Quadrilateral ABCD has the following vertices.
Marizza181 [45]
A(-5,5)
B(4,5)
C(2,0)
D(-5,-2)

AB,BC,CD,DA

AB = [4-(-5)),5-5]=[9,0]
Lenght  AB= \sqrt{9^2+0^2}= \sqrt{81}  =9

BC = [2-4,0-5]=[-2,-5]
Lenght  BC=\sqrt{(-2)^2+(-5)^2}=\sqrt{4+25}=\sqrt{29}

CD = [-5-2,-2-0]=[-7,-2]
Lenght  CD=\sqrt{(-7)^2+(-2)^2}=\sqrt{49+4}=\sqrt{53}

DA =[-5-(-5),-2-5]=[0,-7]
Lenght DA=\sqrt{0^2+(-7)^2}=\sqrt{49}=7

sorted from longest to shortest:
AB, CD,DA,BC
\sqrt{81}, \sqrt{53}, \sqrt{49}, \sqrt{29}

3 0
3 years ago
"5. Multiple-choice questions each have five possible answers (a,b,c,d,e), one of which is correct. Assume that you guess the an
Nina [5.8K]

Answer:

A) P(WWC) = 0.128

B) P(WCC) = 0.032

P(CWC) = 0.032

P(CCW) = 0.032

C) probability of getting 2 correct answers when 3 guesses are made is i.e P (1 wrong and 2 correct) = 0.064

Step-by-step explanation:

A) Using the multiplication rule, we have; P(A and B) = P(A) x P(B)

Probability of a wrong answer = 4/5 = 0.8

Probability of a correct answer = 1/5 =0.2

Thus; P(WWC) = 0.8 x 0.8 x 0.2 = 0.128

B) Beginning with one wrong and two correct answers, a complete list of all possibilities is;

P(WCC), P(CWC), P(CCW)

Hence the complete list is;

(0.8 x 0.2 x 0.2); (0.2 x 0.8 x 0.2); (0.2 x 0.2 x 0.8)

So we have;

P(WCC) = 0.032

P(CWC) = 0.032

P(CCW) = 0.032

C) Based on the results above, the probability of getting 2 correct answers when 3 guesses are made is i.e P(1 wrong and 2 correct) = 2 x 0.032 = 0.064

7 0
3 years ago
Find the least common denominator (LCD) of 7/9 and 5/6
AnnZ [28]

Answer: 18

Step-by-step explanation:

        The least common denominator of \frac{7}{9} and \frac{5}{6} is going to be a multiple of 9 and 6. Let us list them out:

9: 9, <u>18</u>, 27, 36, 45, 54, 63, 72, 81, 90

6: 6, 12, <u>18</u>, 24, 30, 36, 42, 28, 54, 60

        You can see I bolded and underlined 18. Why? This is the first common multiple of 9 and 6 so it is our least common denominator (LCD).

8 0
2 years ago
1. 1/8 + 5/6 =?
Ivan
1)Find the lcd for 1/8+5/6
=2/24+5*4/24
since the denominators are equal, combine the fractions 
=3+4*5/24
=23/24

2)Convert the mixed numbers to improper
=15/8*17/5
=255/40
=51/8
=6 3/8

3)1/9 divided by 3
1/3*9
=1/27

4) 2 3/5* 2 6/35
13/5*76/35
13*76/175
988/175
=5 113/175
4 0
3 years ago
What is the answer in the blank space
den301095 [7]

Answer:

3/22

Step-by-step explanation:

12/88

12/88 divided by 4/4 = 3/22

4 0
2 years ago
Read 2 more answers
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