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Alik [6]
2 years ago
11

The equation 2/5d-1=3/5d-3 represents the number of dimes

Mathematics
1 answer:
ollegr [7]2 years ago
8 0

Answer:

d=10

Step-by-step explanation: step 1: 2/5d-1 = 3/5d-3           add 3 to both sides

                                                                   +3          +3

                                            step 2:  2/5d+2 = 3/5d subtract 2/5d to both sides

                                                         -2/5d       -2/5d

                                            step 3:         2 =  1/5d       multiply 5/1 to both sides

                                                              * 5/1 = *5/1

                                                                10 = d

                                                 

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AB = 3 + x
strojnjashka [21]

Answer:

Option A) 4, 2

Step-by-step explanation:

We are given that quadrilateral ABCD is a  parallelogram with sides:

AB = 3 + x\\DC = 4x\\AD = y + 1\\BC = 2y

Since the opposite sides of a parallelogram are equal, we can write:

AB = DC\\AD=BC

Equating the sides we get,

\Rightarrow 3+x = 4x\\4x-x = 3\\3x = 3\\x = 1\\\Rightarrow y + 1 = 2y\\y = 1

Putting the values of x and y, we get:

AB = 3 + x =4\\DC = 4x =4\\AD = y + 1=2\\BC = 2y=2

Thus, the lengths of the opposite side pairs is 4,2.

4 0
3 years ago
What is the length of RT?
svetoff [14.1K]
10/15 x X/24 cross multiply and the answer is 16
6 0
3 years ago
Read 2 more answers
How many times larger is 8 x 106 than 2 x 103?<br> Х
Shkiper50 [21]

Answer: ~4.12 times larger

Step-by-step explanation:

1. find the values for both equation, (8*106=848) and (2*103=206).

2. divide the larger number by the smaller one. 848/206

which gives us 4.11650485, or <u>4.12</u> rounded.

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2 years ago
Find the derivative of g(t)=t2+5t at t=7 algebraically.
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The power rule applies to each term.

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... g'(t) = 2t +5

... g'(7) = 2·7 +5 = 19

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3 years ago
The dress store is having a sale where all merchandise is 1/4 off. A women buys $24 of merchandise at the sale price.
ivann1987 [24]
The regular price is $32

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