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stepan [7]
3 years ago
10

What must be added to ‐213 to get ‐312​

Mathematics
2 answers:
Leya [2.2K]3 years ago
6 0
  • Answer:

<em>n = - 99</em>

  • Step-by-step explanation:

<em>- 213 + n = - 312</em>

<em>n = - 312 + 213</em>

<em>n = - (312 - 213)</em>

<em>n = - 99</em>

kirill [66]3 years ago
5 0
-213+x=-312
x=-312+213
x=-99
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Cameron estimates that the math class will sell 200 calendars. what will the total cost be'
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the cost of one calendar = x

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4 0
3 years ago
Use the diagram of point O. What is the length of OY to the nearest 10th of an Inch? XZ = 10 and OX= 10
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From the diagram above,

XZ = 10 in and OX = 10 in

we are to find length of OY

XZ is a chord and line OY divides the chord into equal length

Hence, ZY=YX= 5 in

Now we solve the traingle OXY

To find OY we solve using pythagoras theorem

(Hyp)^2=(Opp)^2+(Adj)^2

applying values from the triangle above

\begin{gathered} OX^2=XY^2+OY^2 \\ 10^2=5^2+OY^2 \\ 100=25+OY^2 \\ OY^2\text{ = 100 -25} \\ OY^2\text{ = 75} \\ OY\text{ = }\sqrt[]{75} \\ OY\text{ = }\sqrt[]{25\text{ }\times\text{ 3}} \\ OY\text{ = 5}\sqrt[]{3\text{ }}in \end{gathered}

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8 0
9 months ago
madeline studies honeybees. every week she weighs the same honeybee hive, the first week the hive weighs 11.607 kilograms. its w
fomenos
So, we already know that one hive has a weight of 11.607kg and .204kg is add each week, so we add on .204kg times, w, representing weeks onto 11.607kg and our t is our total of weight of a hive with respect to weeks

w = weeks \\ t = total \: weight \: with \: respect \: to \: weeks
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w = 7.5 \: weeks \\ t = ?
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Answer:

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6 0
1 year ago
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