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Elina [12.6K]
3 years ago
14

-7x-27=8-1(x-19) show how to get this

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0
-7x-27=8-1(x-19) \\
-7x-27=8-x+19\\
-6x=54\\
x=-9
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What is 85% of 36= ??????
aliya0001 [1]
To find 85% of 36 we have to transform 85% into fraction and then multiply it by 36.
85% is \frac{85}{100}
\frac{85}{100}*36= \frac{85*36}{100}=  \frac{3060}{100} = \frac{153}{5}   =30.6 - its the result
5 0
3 years ago
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Can you please help me with my homework.
Travka [436]

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sure, add a link or question

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3 years ago
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Given: ABCD pyramid All edges congruent AB = 4.5 Find: V
mrs_skeptik [129]

Answer:

<h2>The volume of the pyramid is 30.375 cubic units. </h2><h3>(Assuming that it's a square pyramid).</h3>

Step-by-step explanation:

The volume of a pyramid is

V=\frac{1}{3} e^{3}

Where e represent edges.

If all edges are congruent that means e=4.5, replacing this value, we have

V=\frac{1}{3}(4.5)^{3} \\ V=\frac{1}{3}(91.125) = 30.375

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7 0
3 years ago
During the Labor Day weekend, Amy and Kathleen each ran in a race. Amy ran in a 5K and completed it in 31 minutes and 15 seconds
Novosadov [1.4K]
Velocity=distance/time

a=5/(31*60+15)=5/1875=1/375

k=21.1/(2*3600+11*60+52.5)=21.1/7912.5=1/375

a=k

The both ran at the same speed.

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4 0
3 years ago
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7а — За +2а — а = 16
dezoksy [38]

Answer:

(7a-3a)+(2a-a)=16

4a+a or 1a =16

5a=16

5a/5=16/5

a =16/5 or a=3.2

Step-by-step explanation:

solving like terms or substract are same

you only have to find value of uknown value which was "a" question

8 0
4 years ago
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