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Tatiana [17]
2 years ago
14

Izzy goes on 13 boat rides over the summer.

Mathematics
1 answer:
Stella [2.4K]2 years ago
8 0
8 boat rides bill went on
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25+{2[3+8-7(25/5)+11]}
Inessa05 [86]
Let's solve it step by step:
(we start with the innermost bracket:  (25/5). This is equal to 5. :

25+{2[3+8-7(25/5)+11]} =
25+{2[3+8-7(5)+11]} =

now, we can multiply 7 and 5, which is 35

25+{2[3+8-35+11]} =

Now we can add all the numbers in the square bracket, 3,8 (that's 11), then -35 (which is -24) then 11 - all together it's -13
3+8-35+11=22-35=-13

25+{2[-13]} =

Multiplying 2 and -13
25+{-26} =25-26, which is -1

the final answer is -1






5 0
3 years ago
Each floor of a hotel has r rooms. On 8 floors, there are a total of 256 rooms.
Lynna [10]

Answer: 8r = 256 is the expression. There are 32 rooms on each floor.


7 0
3 years ago
Given the literal equation ab/a+b = c , with b = –1 + a, what is the value of c if a = 5?
Nesterboy [21]

The solution would be like this for this specific problem:

ab/a+b = c 

b = -1 + a

for c:
<span>(5(-1 + 5))/(5 + (-1 +5))
</span><span>5(4)/ 5 + 4
</span><span>20 / 9
</span>

<span>The correct answer between all the choices given is the first choice or letter A. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.</span>



3 0
3 years ago
Read 2 more answers
a cone has a radius of 6cm and height 9 calculate a)the volume and curved surface area b) total surface area
Orlov [11]

Answer:

V = 339.3 cm³; L = 203.9 cm²; A = 317.0 cm²  

Step-by-step explanation:

a) Volume

The formula for the volume (V) of a cone is

V = ⅓πr²h

V = ⅓π × 6² × 9

V = ⅓π × 36 × 9

V = 108π cm³

V ≈ 339.3 cm³

=====

Curved surface area  

The formula for the lateral surface area (L) of a cone is

L = πr√(r² + h²)

L = π×6√(36 + 81)

L = 6π√[9(4 + 9)]

L = 6π√(9 × 13)

L = 18π√13 cm²

L ≈ 203.9 cm²

===============

b) Base surface area

The base is a circle, so the formula for base surface area (B) is

B = πr²

B = π×6²

B = 36π cm²

B ≈ 113.1 cm²

=====

Total surface area

A = L + B

A = 18π√(13 +36π)

A = 18π(2 + √13) cm²

A ≈ 203.9 + 113.1

A ≈ 317.0 cm²

3 0
3 years ago
Use the scatter plot of car resale values to answer the following question.
Nataly_w [17]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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