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3 years ago

The fifth-grade teachers are planning a field trip. There are 138 fifth-

Mathematics

2 answers:

MrMuchimi3 years ago

5 0

Answer:

6 buses

Step-by-step explanation:

138 students / 23 students per bus = 6 buses

musickatia [10]3 years ago

5 0

Answer:

they'll need 6 buses

Step-by-step explanation:

138 students divided by 23 leads for 6 buses needed

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Hello can someone please help me with this.

Zolol [24]

Answer:

if there is equivalent ratio cookies should be 48

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3 years ago

Using sum or difference formulas, find the exact value of sin(165∘)

Nikitich [7]

$\bf \textit{Sum and Difference Identities}
\\ \quad \\
sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}})
\\ \quad \\
sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}})\\\\
-------------------------------\\\\$

$\bf sin(165^o)\implies sin(120^o+45^o)
\\\\\\
sin(120^o)cos(45^o)~+~cos(120^o)sin(45^o)\implies \cfrac{\sqrt{3}}{2}\cdot \cfrac{\sqrt{2}}{2}~+~\cfrac{-1}{2}\cdot \cfrac{\sqrt{2}}{2}
\\\\\\
\cfrac{\sqrt{6}}{4}~-~\cfrac{\sqrt{2}}{4}\implies \cfrac{\sqrt{6}-\sqrt{2}}{4}$

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3 years ago

How to do this problem??

ahrayia [7]

The answer would be 16 3/4 divided by 3 7/8

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3 years ago

If 3x+2=11 then x= ?

leonid [27]

Answer:

X=3

Step-by-step explanation:

What you have to do is minus 2 from 11 and you get 9

Now divide 3 into 9 and you get 3

x=3 you can also plug 3 for x to see if the equation is right

8 0

3 years ago

Read 2 more answers

If BE is parallel to CD, the. The value of x is: A. 10 B. 6 C. 9

sveta [45]

Corresponding sides have the same ratio, so
x/15 = 12/(12+8) = 3/5
x = 15*3/5
x = 9

4 0

3 years ago