3 years ago

I need a subtracting word problem please

Mathematics

2 answers:

Tems11 [23]3 years ago

8 0

Samantha collected $450 for doing a bake sale by Target she gave $250 to charity. How much does she have left?

Lapatulllka [165]3 years ago

5 0

Tara had 17 rocks then she gave 4 rocks to her friend how many rocks left

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What's the answer? and how to do this?

castortr0y [4]

A. 79
The inscribed angle is always 1/2 of the arc.
In this case angle RST is the inscribed angle and arc RT is the arc
The arc is 158

Inscribed angle=.5arc
Inscribed angle=.5(158)
Inscribed angle=79

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2 years ago

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Tom has a piece of wood that is 10 and 1/3 inches long. He divides the wood into pieces that are 2 and 1/5 inches long. How many

faust18 [17]

I am sorry I needed points

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2 years ago

Calculate the arithmetic sequence in which a9=17 and the common difference is d=-2.1

jek_recluse [69]

Answer:

$S_{31}=71.3$

Step-by-step explanation:

The nth term of an arithmetic sequence is given by the formula,

$U_n=a_1+(n-1)d$

We were given that the 9th term is $17$ .

$\Rightarrow 17=a_1+(9-1)(-2.1)$

$\Rightarrow 17=a_1+(8)\times(-2.1)$

$\Rightarrow 17=a_1-\frac{84}{5}$

$\Rightarrow 17+\frac{84}{5}=a_1$

$\Rightarrow a_1=\frac{169}{5}$

The sum of the first n-terms is given by the formula,

$S_n=\frac{n}{2}(2a_1+(n-1)d)$

To find $S_{31}$ , we substitute $n=31$ , $a_1=\frac{169}{5}$ and $d=-2.1$ .

$\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(31-1)(-2.1))$

$\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(30)(-2.1))$

$\Rightarrow S_{31}=\frac{31}{2}(\frac{23}{5})$

$\Rightarrow S_{31}=\frac{713}{10}$

$\Rightarrow S_{31}=71.3$

The correct answer is D

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3 years ago

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A B C or D help fast please!!!!

vodka [1.7K]

Answer:

c I just saw ur question sorry if I too late

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3 years ago

A quadrilateral has no pairs of parallel sides. Which name best describes the figure?

Alecsey [184]

A kite fits this description.

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3 years ago

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