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tester [92]
3 years ago
10

Plz help ill give you brainlist to you

Mathematics
1 answer:
Nastasia [14]3 years ago
8 0
First one the answer is A; Alexander needs 70 ft
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Solve this using Substitution. <br> {y=x+1 <br> {2x+y=7
Elina [12.6K]
Y = x + 1....so we sub in x + 1 for y in the other equation

2x + y = 7
2x + x + 1 = 7 ....combine like terms
3x + 1 = 7....subtract 1 from both sides
3x = 7 - 1
3x = 6 ....divide both sides by 3
x = 6/3
x = 2

y = x + 1
y = 2 + 1
y = 3

so ur solution is : (2,3)
7 0
3 years ago
Please help!!!! don't understand!!!
Talja [164]

I dont know, im working it out now, or im trying to

8 0
3 years ago
Plz hellllppppp -9+n/4 = -7
svetlana [45]

Answer:

n=-37

Step-by-step explanation:

9+n/4 = -7

First, we multiply each side by 4:

9+n= -28

Subtract 9 from both sides

n= -37

Hope this helps!!!

5 0
3 years ago
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Are rectangles ABCD and WXYZ congruent? Why or why not? Yes, all right angles were preserved. Yes, both rectangles have an area
Setler79 [48]

Answer:

D. No, there is not a rigid transformation or a combination of rigid transformations that will map ABCD to WXYZ.

Step-by-step explanation:

Two figures are congruent if their vertices can be mapped into one another by appropriate rigid transformation or combination of rigid transformations. Examples of the transformation are; reflection, dilation, rotation and translation.

Comparing the two figures, it would be observed that they are not congruent. Since there is not a rigid transformation or a combination of rigid transformations that will map ABCD to WXYZ.

3 0
3 years ago
Read 2 more answers
How do you wirte 15 and 40 in simplest form
dem82 [27]

Step-by-step explanation:

15 : 40

Both have table of 5 in common

5 : 8

4 0
3 years ago
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