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irina [24]
3 years ago
9

Don’t worry, this is just practice. I need help please!!

Mathematics
1 answer:
Helen [10]3 years ago
6 0
Is it any choices because i got 2 solutions
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Give the standard form for 900.000 000 + 50 50.000 000 + 9.000 + 600 + 20 + 7
zvonat [6]

Answer:

900.000 000 + 5050.000 000 + 9.000 + 600 + 20 + 7

=900+5050+9+600+20+7=6586 is standard one

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3 years ago
What is the ratio equivalent to 7:2
aleksandrvk [35]
4:14 , 6:21, 8:28, 10:35!!!
6 0
3 years ago
Read 2 more answers
a ski chalet offers 2 weekend packages. one package provides 2 nights and 3 meals for$280. the other provides 2 nights and 5 mea
Helga [31]


<span> <span>1st</span></span><span> formula 2n + 3m = 280
</span><span><span>
</span><span>2nd</span></span><span> formula 2n + 5m = 320
</span><span><span>
</span><span>rearrange 1st</span> formula to equal n:</span>

    <span><span>2n = -3m + 280
</span>      </span><span>n = -3/2 m + 140
</span><span><span>
</span><span>rearrange 2nd</span> formula to equal n:</span>

 <span><span>2n = -5m + 320
</span> </span><span>n = -5/2m + 160
</span><span><span> so now you have

</span>-3/2m + 140 = -5/2m + 160 </span>

<span><span>Rearrange to become:
</span> </span><span><span>-3/2m + 5/2m = 160 - 140
</span> </span><span>m = 20
</span><span>
</span>

<span>Now place 20 into the very 1st</span><span><span> equation in place of the letter m
</span> </span><span><span>2n + 3(20) = 280
</span> </span><span><span>2n + 60 = 280
</span> </span><span><span>2n = 220
</span> </span><span>n = 110
</span><span><span>
</span>so it costs $110 per night, $20 per meal</span>


8 0
4 years ago
The sum of 3/4 and 18/19 is closest to
n200080 [17]
The decimal answer is 1.697368421 and the fraction answer is 129/76
3 0
3 years ago
Please help me with this!
ZanzabumX [31]

9514 1404 393

Answer:

  2 1/2 feet

Step-by-step explanation:

The Pythagorean theorem is not useful in this problem.

__

If you reflect the triangle over the vertical line, you find that line to be the altitude of an equilateral triangle. That is, all of the vertex angles are 60°.

The base of that equilateral triangle is necessarily twice the length of the base of the triangle shown. All sides of the equilateral triangle are the same length, so all are 5 ft. The base of the triangle shown is half that.

The base (short leg) of the triangle shown is 2 1/2 feet.

_____

Since angles are given, this can be solved using trigonometry. The short leg will be (5 ft)·cos(60°) = (5 ft)(0.5) = 2.5 ft. (The cosine of 60° is one of the few exact rational values of trig functions of exact angles measured in degrees.)

5 0
3 years ago
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