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AnnZ [28]
3 years ago
14

Miranda bought 8 books about animals, 3 books about outer space, and 4 books about trains. Each book cost $5. How much did Miran

da spend on the books?
PLEASE HELPPPPP!!!!
Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
4 0
She spent $75

The best news of this problem is that the books all cost the same.

So 8 + 3 + 4 = 15 books total
15 x $5 = $75
pantera1 [17]3 years ago
3 0

Answer:

85

Step-by-step explanation:

8+3+4

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kodGreya [7K]

Answer:

9\frac{3}{4} ,\:\: 9.5 ,\:\: 9\frac{3}{8} ,\:\: 9.125

Step-by-step explanation:

9\frac{3}{4} = 9.75\\\\9\frac{3}{8} = 9.375\\\\9.125 =9.125\\\\9.5 =9.5

5 0
3 years ago
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A solid oblique pyramid has a square base with an edge length of 2 cm. Angle BAC measures 45°.
lana [24]

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2020 edge

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I need help please..<br>what is the value of x?​
jarptica [38.1K]

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8 0
3 years ago
A farmer bought a number of pigs for $160. However, 8 of them died before he could sell the rest at a profit of 6 per pig. His t
juin [17]

Answer:

The farmer bought 36 pigs in all.

Step-by-step explanation:

Given that a farmer bought a number of pigs for $ 160, but, however, 8 of them died before he could sell the rest at a profit of 6 per pig, and his total profit was $ 8, to determine how many pigs did he originally buy the following calculation must be performed:

160 + 8 = 168

168/6 = 28

28 + 8 = 36

Thus, the farmer bought 36 pigs in all.

6 0
3 years ago
How do you find the value of c that satisfy the equation:
victus00 [196]

Answer:

The value of c = -0.5∈ (-1,0)

Step-by-step explanation:

<u>Step(i)</u>:-

Given function f(x) = 4x² +4x -3 on the interval [-1 ,0]

<u> Mean Value theorem</u>

Let 'f' be continuous on [a ,b] and differentiable on (a ,b). The there exists a Point 'c' in (a ,b) such that

f^{l} (c)  = \frac{f(b) -f(a)}{b-a}

<u>Step(ii):</u>-

Given  f(x) = 4x² +4x -3 …(i)

Differentiating equation (i) with respective to 'x'

          f¹(x) = 4(2x) +4(1) = 8x+4

<u>Step(iii)</u>:-

By using mean value theorem

f^{l} (c)  = \frac{f(0) -f(-1)}{0-(-1)}

8c+4 = \frac{-3-(4(-1)^2+4(-1)-3)}{0-(-1)}

8c+4 = -3-(-3)

8c+4 = 0

8c = -4

c = \frac{-4}{8} = \frac{-1}{2} = -0.5

c ∈ (-1,0)

<u>Conclusion</u>:-

The value of c = -0.5∈ (-1,0)

         

<u></u>

8 0
3 years ago
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