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3 years ago

10

A swimming pool is open for 7.5 hours during the day. The pool keeps one lifeguard on duty at a time.l, with each of their shift

s being 1.5 hrs long. How many shifts are there per day?

2 answers:

8090 [49]3 years ago

7 0

The answer is 5 shifts a day

nata0808 [166]3 years ago

7 0

5 shifts is the answer

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Whats 22 less than a number n

kari74 [83]

$less \\ than = subtraction (-) \\ Number: n \\ \\ Translated: n - 22 \\ or \\ \\ 22 - n$

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3 years ago

I need help with this please. :)

jek_recluse [69]

9514 1404 393

Answer:

2x
2
128x +640

Step-by-step explanation:

1.

$\displaystyle\frac{8x^2-4x}{4x-2}=\frac{4x(2x-1)}{2(2x-1)}=\boxed{2x}$

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2.

$\displaystyle\frac{8x-4}{x+3}-\frac{12x-20}{2x+6}=\frac{8x-4}{x+3}-\frac{4(3x-5)}{2(x+3)}=\frac{8x-4-2(3x-5)}{x+3}\\\\=\frac{8x-4-6x+10}{x+3}=\frac{2x+6}{x+3}=\frac{2(x+3)}{x+3}=\boxed{2}$

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3.

$\displaystyle\frac{(2x+10)^7}{(x+5)^6}=\frac{(2(x+5))^7}{(x+5)^6}=2^7(x+5)^{7-6}=128(x+5)\\\\=\boxed{128x+640}$

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3 years ago

Can you help with this math please?

Blababa [14]

Answer:

3 on the other side and 7 and 7 on the sides

Step-by-step explanation:

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3 years ago

Pls help I don't understand this

Rudiy27

<h3>Answer:</h3>

<u>By angle bisector property</u>,

11x + 23 = 8x + 35
11x - 8x = 35 - 23
3x = 12
x = 4°

So, <u>m∠ABD</u> = 8x + 35

8 × 4 + 35
32 + 35 = 67°

<u>m∠CBD</u> = 11x + 23

11 × 4 + 23
44 + 23 = 67°

<u>m∠ABC</u> = 67° + 67° = 134°

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3 years ago

Which of the following fractions is smaller than<br> 1/2

Harman [31]

the answer is C: 3/7

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3 years ago