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3 years ago

Please help me with this math problem!! NO LINKS!!! Will mark brainliest!! :)

Mathematics

1 answer:

mart [117]3 years ago

5 0

Answer:

m∠B would be 45°

Step-by-step explanation:

Since m∠C is a right angle (90°) and m ∠B is half of a right angle, it would be 45°.

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olga nikolaevna [1]

Answer:

Fraction of the original board left = $\frac{2}{15}$

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off $\frac{1}{5}$ of a wooden board.

Length of the board left = l - $(\frac{1}{5})l$

= $(\frac{4}{5})l$ feet

He saws off $\frac{3}{4}th$ of the remaining board,

Board left = $(\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]$

= $\frac{4}{5}l-\frac{3}{5}l$

= $\frac{1}{5}l$ feet

He finally saws off $\frac{1}{3}$ rd of the remaining board.

Board left = $\frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l$

= $(\frac{1}{5}-\frac{1}{15})l$

= $\frac{2}{15}l$ feet

Fraction of the original board left = $\frac{\frac{2}{15}l}{l}$

= $\frac{2}{15}$

6 0

3 years ago

The total amount of money saved in

fiasKO [112]

Answer is 14

Step by step explanation

The amount is same so
64+8w=92+6w
2w=92-64=28
w=14 => after 14 weeks

6 0

3 years ago

U Po RU 2 0 What is this?

seraphim [82]

I don’t know could you do a picture

6 0

2 years ago

Isaac has 21 green marbles and 7 blue .He wants to place them in identical groups without any marbles left over.What is the grea

dybincka [34]

Answer:

7 groups

Step-by-step explanation:

Each group would have 1 blue marble and 3 green marbles

8 0

3 years ago

HEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPP WITH ANSWER PLZZZZ

earnstyle [38]

First, find the area of each of the prisms sides

5 by 5.5 = 27.5

3 by 5.5 = 16.5

4 by 3 cut in half = 6 (theres 2 of thoses so 12)

4 by 5.5 = 22

Add up the products and the surface area is 78 units

Post brainliest if this helped :)

4 0

3 years ago