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Stolb23 [73]
3 years ago
10

In the diagram B is the midpoint of a A and C. B is also the midpoint or E and F. C is the midpoint of A and D.

Mathematics
1 answer:
aivan3 [116]3 years ago
6 0

Answer:

AD = 84

Step-by-step explanation:

Since B is the midpoint of AC then AB = BC = 2x - 5

Since C is the midpoint of AD then AC = CD, thus

AB + BC = CD, that is

2x - 5 + 2x - 5 = x + 29

4x - 10 = x + 29 ( subtract x from both sides )

3x - 10 = 29 ( add 10 to both sides )

3x = 39 ( divide both sides by 3 )

x = 13

Hence

AD = AB + BC + CD

     = 2x - 5 + 2x - 5 + x + 29 = 5x + 19, thus

AD = (5 × 13) + 19 = 65 + 19 = 84

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The answer to a,b and c
GuDViN [60]

Answer:

16/45; 4/45; 1125

Step-by-step explanation:

Since you know that 4/9 and 1/5 are used, make them common denominators. So 4/9 would turn into 20/45 and 1/5 would be 9/45. It results in 29/45, but that is the amount spent, so you would subtract 45-29/45, resulting in 16/45. For B, you know that she spent 3/4 of the savings, so you know that 1/4 is not being spent. So use 1/4 multiplied by 16/45 from part A to get 4/45. For C, you know that 4/45 is $100, so I multiplied 45x100 to get 4500 and then divided by 4 to get 4500/4.

8 0
3 years ago
Help me please again lol :> here's a picture
Delvig [45]

Answer:

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Step-by-step explanation:

It can't be the other two because they don't share the same area

4 0
2 years ago
Read 2 more answers
Which number should each side of the equation 4/5x=8 be multiplied by to produce the equivalent equation of x=10?
kompoz [17]

Answer:

D

Step-by-step explanation:

(4/5)x*5=8*5

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5 0
2 years ago
Determine the answer to 3 + -5 and explain the steps using a number line
Marizza181 [45]
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Since 5 is bigger, you use that sign

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Answer: -2
6 0
3 years ago
Read 2 more answers
one pound of swordfish costs as much as 1.5 pounds of salmon. Mrs. O pays $39 for 2 pounds of salmon and 3 pounds of swordfish.
Alex73 [517]

Answer:

Not sure which ratio you need, but 6/9 = 2/3

Step-by-step explanation:

1.5xsalmon=swordfish

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6 0
2 years ago
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