Please help me solve this

Mathematics

1 answer:

alexandr1967 [171]2 years ago

3 0

Answer:

20.5

Step-by-step explanation:

By the Triangle Midsegment Theorem, the midsegment connecting the midpoints of two sides of a triangle is parallel to the third side of the triangle, and the length of this midsegment is half the length of the third side. Therefore, (1/2)FH ≡ IH, (1/2)HG ≡ HJ. Knowing that IJ = 8 gives you the presidence to solve for the perimeter.

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It takes 60 minutes for 7 people to paint 5 walls.

ziro4ka [17]

0.7/1 of a wall per person

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2 years ago

Maureen went on a 3 day 50 mile trip. the first day she biked 17 7/8 miles . the second day she biked 18 5/7 miles. How many mil

Inessa [10]

To find the miles for 3rd day, we take away the miles she biked for the first two day from the total.

$50 - 17 \dfrac{7}{8} - 18\dfrac{5}{7}$

$=50 - 17 \dfrac{7 \times 7}{8 \times 7} - 18\dfrac{5 \times 8}{7 \times 8}$

$= 48 \dfrac{112}{56} - 17 \dfrac{49}{56} - 18\dfrac{40}{56}$

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Answer: She traveled 13 23/56 miles on the third day.
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3 years ago

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AnnZ [28]

Answer:

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Step-by-step explanation:

We need to find about what is the first term in the sequence for which d = -2 and a7 = 3

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