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mel-nik [20]
4 years ago
11

Which expression represents 2 times the sum of 5 and 7?

Mathematics
2 answers:
steposvetlana [31]4 years ago
6 0

Answer:

2(5+7)

I hope this helped!

scZoUnD [109]4 years ago
6 0
2(5+7). that’s my answer
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let x represent the number of hours you read a book and y represent the total number of pages you have to read you already read
MrRa [10]
Given:
x = number of hours
y = total number of pages
70 = number of pages already read
30 =number of pages read per hour

y = 30x

70 = 30x
70/30 = 30x/30
2 1/3 = x

You read 70 pages within 2 hours and 20 minutes.

y = 30x
y = 30(3)
y = 90

An additional 90 pages have been read after another 3 hours.

Total pages read.

y = 30(2 1/3) = 70 pages
y = 30(3)       =<u> 90 pages</u>
                         160 pages within 5 hours and 20 minutes.

3 0
3 years ago
Find the volume and surface area of both please
masya89 [10]
For the triangle do bh\2 and the rectangle do lwh
8 0
4 years ago
Write an equation in slope intercept form for the line that passes through (5, -8) and (11, 10)
Bess [88]

\bf (\stackrel{x_1}{5}~,~\stackrel{y_1}{-8})\qquad&#10;(\stackrel{x_2}{11}~,~\stackrel{y_2}{10})&#10;\\\\\\&#10;slope = m\implies&#10;\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{10-(-8)}{11-5}\implies \cfrac{10+8}{11-5}\implies \cfrac{18}{16}\implies \cfrac{9}{8}


\bf \begin{array}{|c|ll}&#10;\cline{1-1}&#10;\textit{point-slope form}\\&#10;\cline{1-1}&#10;\\&#10;y-y_1=m(x-x_1)&#10;\\\\&#10;\cline{1-1}&#10;\end{array}\implies y-(-8)=\cfrac{9}{8}(x-5)\implies y+8=\cfrac{9}{8}(x-5)&#10;\\\\\\&#10;y+8=\cfrac{9}{8}x-\cfrac{45}{8}\implies y=\cfrac{9}{8}x-\cfrac{45}{8}-8\implies y=\cfrac{9}{8}x-\cfrac{109}{8}

7 0
4 years ago
Need help answering this
AVprozaik [17]
This is cross multiplication.
513.74 times x =513.74x
16.26 times 100=1626
Now there is 1626=513.74x
Do 1626 divided by 513.74 which is 3.16502511
4 0
3 years ago
The ratio of angle measures is 1:2:2. Classify the triangle by its angle measures. obtuse triangle right triangle equiangular tr
lyudmila [28]

Answer:

Acute Triangle

Step-by-step explanation:

<u><em>Angles in a triangle add up to 180 degrees.</em></u>

So,

x+2x+2x = 180

=> 5x = 180

Dividing both sides by 5

=> x = 36

<u><em>So, The lengths are:</em></u>

=> 36

=> 72

=> 72

<em><u>Since all the angles are less than 90 degrees, It is an acute triangle.</u></em>

5 0
4 years ago
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