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Scrat [10]
3 years ago
5

A bookstore packs six books in a box the total weight of the box is 14 1/4 times if each book has the same weight what is the we

ight of one book
Mathematics
1 answer:
Nataly_w [17]3 years ago
7 0
Each book would weigh 2.375.
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Solve for the value of b
OverLord2011 [107]

Answer:

18

Step-by-step explanation:

7b-2+3b+2=180

10b=180

b=18

5 0
3 years ago
Solve the system by substitution. y=2x^2-3x-1 y=x-3
padilas [110]
The answer is B(1,-2). This is the only point where the two lines intercept. & if you plug the numbers into the equations they fit.
6 0
2 years ago
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Will mark as brainiest answer!!!!!<br> Please show work as to how you found the answer
Alchen [17]
(2,8) and (-2,10)

<u>y₂</u><u> </u><u>- y₁</u>     used to find the slope<u>
</u>x₂ - x₁
<u>
</u>plug in the coordinates
<u>10-8</u> = <u>2</u>     all equals -1/2
-2-2 = -4     m=-1/2
<u>
</u>plug one of the coordinates and the slope into y=mx+b, and solve
<u />8=-1/2(2)+b
8=-1+b
9=b

Final Answer: y = -1/2x + 9
5 0
3 years ago
If y = 2x2 – 4x, what is the value of y when x equals 5. <br> A.10 <br> B.30 <br> C.80 <br> D.480
Ainat [17]

Answer:

The value of y in the given equation is B. 30.

Step-by-step explanation:

y = 2x² - 4x             x = 5

y = 2(5)² - 4(5)        Plug 5 in for x

y = 2(25) - 20         Square 5 and multiply 4 by 5

y = 50 - 20             Multiply 2 by 25

y = 30

Hope this helps,

❤<em>A.W.E.</em><u><em>S.W.A.N.</em></u>❤

6 0
3 years ago
A company that makes​ hair-care products had 3,000 people try a new shampoo. Of the 3,000 ​people, 18 had a mild allergic reacti
MrMuchimi

Answer:

60%

Step-by-step explanation:

There was a total of 3000 people and of those 3000 people only 18 had a mild allergic reaction.

18/3000 × 100 = 60%

5 0
3 years ago
Read 2 more answers
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