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tino4ka555 [31]
3 years ago
14

How in the world do you do this problem (-1,0) y+__= 4(x+2)

Mathematics
1 answer:
WARRIOR [948]3 years ago
3 0
X = 0 y =-1 because you have to have to find numbers to replace x & y.
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In order for the parallelogram to be a
snow_lady [41]
<h3>Answer:   20</h3>

Explanation:

For any rectangle, the diagonals are the same length.

AC = BD

7x-35 = 3x+45

7x-3x = 45+35

4x = 80

x = 80/4

x = 20

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3 years ago
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torisob [31]
I can't answer this because I don't know what she was starting with
5 0
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The sum of the digits of a two-digit number is 5. If the number is multiplied by 3, the result is 42. Write and solve a system o
Elenna [48]
A two digit number has a tens digit and a ones digit.
Let's say x = tens digit and y = ones digit

"The sum of the digits is 5"
x + y = 5

The next phrase is "the number multiplied by 3 is 42" but we need to represent the number using the digits. So they need to be multiplied first by their place value and added together. [Example: 34 = 3(10) + 4(1)]

The number is: 10x + y
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x + y = 5
30x + 3y = 42

Then you can use substitution or elimination to combine and solve.
I'll use elimination, multiply the entire top equation by -3 and add the equations together. y will cancel out

-3x - 3y = -15
30x + 3y = 42
------------------
27x + 0 = 27
x = 1

then plug x = 1 into either equation to find y

1 + y = 5
y = 4

remember the x and y represent digits so the number xy is 14
6 0
3 years ago
A 25 foot ladder rests against a buliding . The base lf the ladder is 15 feet away from the base of the building. At what height
professor190 [17]
X^2+15^2=25^2
X^2+225=625
Isolate X
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Answer: 20
3 0
3 years ago
Words problems involving length and money
stiv31 [10]

Answer:

12

Step-by-step explanation:

Since 8 poster takes 48 inches of tape

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each poster will take 6

if you have two posters

6x2=12

so 12

5 0
2 years ago
Read 2 more answers
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