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Nutka1998 [239]
1 year ago
8

Solve for x and find the lengths. x= DE= x + 7 EF = 7 4x+2

Mathematics
2 answers:
Korolek [52]1 year ago
8 0

Answer:

see explanation

Step-by-step explanation:

from the diagram

DF = DE + EF , that is

4x + 2 = x + 7 + 7

4x + 2 = x + 14 ( subtract x from both sides )

3x + 2 = 14 ( subtract 2 from both sides )

3x = 12 ( divide both sides by 3 )

x = 4

Then

DE = x + 7 = 4 + 7 = 11

DF = 4x + 2 = 4(4) + 2 = 16 + 2 = 18

anastassius [24]1 year ago
8 0

Answer:

x=4. DE:11. DF:18 , so easy

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Chris and Josh have a total of 1,800 stamps in their collections, Josh and Jessica have a total of 2,200 stamps, and Jessica and
LiRa [457]

Answer: 3000 stamps

Step-by-step explanation:

Given

Chris and Josh have 1800 stamps

Josh and Jessica have 2200 stamps

Jessica and Chris have 2000 stamps

Suppose Chris, Josh, and Jessica have x,y, \text{and}\ z stamps

\therefore x+y=1800\quad \ldots(i)\\\Rightarrow y+z=2200\quad \ldots(ii)\\\Rightarrow z+x=2000\quad \ldots(iii)\\\text{Add (i), (ii), and (iii)}\\\Rightarrow 2(x+y+z)=1800+2200+2000\\\Rightarrow x+y+z=3000

Thus, all three have 3000 stamps

6 0
2 years ago
two pounds of dried cranberries cost $5.04, 3 pounds of dried cranberries cost $7.56, and 7 pounds of dried cranberries cost $17
yanalaym [24]
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5 0
3 years ago
1/5z -5/6 = -4/5z -1/3
sveta [45]

Answer:

z = 15/30 = 3/6

Step-by-step explanation:

1/5z - 5/6 = - 4/5z - 1/3

1/5z + 4/5z = - 1/3 + 5/6

5/5z = - 2/6 + 5/6

5/5z = 3/6

z = 3/6 / 5/5

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6 0
3 years ago
3 to the power of 2+12÷(6-3)×8.
larisa86 [58]
3^2+12/(6-3)*8
3^2+12/3*8
9+12/3*8
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41

Final answer: 41
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7 0
2 years ago
7(y + 2) – (4y – 10) = 44 – 2y + 5<br> y = -10
andrey2020 [161]

Answer:

y=-8

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=7y+14-4y+10

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3 0
3 years ago
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