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harkovskaia [24]
3 years ago
13

The right rectangular prisms are similar.

Mathematics
1 answer:
rewona [7]3 years ago
8 0

Answer:

A, B, E

Step-by-step explanation:

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Ahmya bought $10 shirt. Spent 1/2 remaining money for dinner. Bought $4cofee, spent 1/4 of remaining money on souveniers. How mu
mestny [16]

Answer:

The amount she started with $20

Step-by-step explanation:

Let the amount Ahmya started with = x

when she bought $10 shirt, the remaining money is = x - 10

she spent half of this remaining money on dinner = (\frac{x- 10}{2} )

amount left after this = (\frac{x- 10}{2} )

she further spent $4 on cofee, the remaining money = (\frac{x- 10}{2} ) - 4

she also spent 1/4 of remaining money on souveniers = \frac{1}{4}(\frac{x-10}{2}  - 4)

amount left = \frac{3}{4}(\frac{x-10}{2}  - 4)

The two last fractions should sum up to 1;

\frac{1}{4}(\frac{x-10}{2}  - 4) + \frac{3}{4}(\frac{x-10}{2}  - 4) = 1\\\\\frac{x-10}{8} -1 + \frac{3x-30}{8} -3= 1\\\\\frac{x-10}{8} + \frac{3x-30}{8} = 1+3+1\\\\\frac{x-10}{8} + \frac{3x-30}{8} =  5\\\\\frac{x-10 +3x-30}{8}  = 5\\\\\frac{4x-40}{8} =5\\\\4x-40 =40\\\\4x =80\\\\x = 20

x = $20

Therefore, the amount she started with $20

7 0
3 years ago
Yeah uh I have no idea how to do this.....
Liula [17]

Answer:

9b /a^5/2

Step-by-step explanation:

9√(a^-5 b^2)

9 sqrt( a^ -5 b^2)

Rewriting sqrt as ^1/2

9 ( a^ -5 b^2)^1/2

9 ( a^ -5) ^1/2 ( b^2)^1/2

we know that  an exponent to an exponent means multiply

9 a^ (-5*1/2)  b^(2*1/2)

9 a^-5/2 b^1

9b a^ -5/2

We know that x^-y = 1/x^y

9b /a^5/2

4 0
3 years ago
Read 2 more answers
GEOMETRY - I NEED HELP!!!
Ainat [17]

Answer:

angle DLM= 21+50=71 degrees i think

Step-by-step explanation:

take the 2 from 2x and divide 42 by the 2 and you have your variable x solved

3 0
3 years ago
Sam and Bethan share £54 in the ration 5 : 4 <br> work out how much each person gets
WITCHER [35]
The person with the 5 gets 30 and the person with 4 gets 24
7 0
3 years ago
Read 2 more answers
∆ABC is reflected across the x-axis, then rotated 90° clockwise about the origin, and finally reflected across the line y = x to
torisob [31]

Answer:

<h2>A'(1,1), B'(2,3) and C'(2,1)</h2>

Step-by-step explanation:

Notice that the vertices are A(1,1), B(2,3) and C(2,1).

A reflection across the x-axis give the coordinates A'(1,-1), B'(2,-3) and C'(2,-1). Then, we apply the rotation 90° clockwise about the origin A'(1,1), B'(3, 2) and C'(1, 2).

Finally, a reflection across the line y = x, gives A'(1,1), B'(2,3) and C'(2,1)

Therefore, the coordinates of the image are A'(1,1), B'(2,3) and C'(2,1).

6 0
3 years ago
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