Answer:
19y - 9
Step-by-step explanation:
-3(-4y + 3) + 7y =
Distribute the -3.
= 12y - 9 + 7y
Combine like terms: 12y + 7y
= 19y - 9
So, there is a rectangular park with longer side (length) 150 yards and shorter side (width) 125 yards.
so walking around the rectangular park once is like covering the Perimeter (p) of the rectangular park.
So, lets find the perimeter of the park.
Perimeter of rectangle = 2 ( l + w)
= 2 ( 150 + 125 )
= 2 * 275
= 550 yards
Now, walking around the park two times is like doubling the Perimeter of the rectangle. So, when Debbie walks around the park 2 times, he covers the perimeter of the rectangular field twice.
i.e. Debbie walked 2 * Perimeter
= 2 * 550
= 1100 yards
Now, If Debbie wanted to walk 1,000,000 yards, she has to walk the rectangular park (1,000,000 / the Perimeter of the park)
i.e. 1,000,000 / 550
= 1818.18 times
So,
(a) she walks 1100 yards
(b) She have to walk 1818.18 times
De acuerdo con un sistema de ecuaciones, tiene-se que los números son 31 y 84.
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- En el sistema de ecuaciones, tiene-se que los números son x e y.
- Suma de 115, o sea,
- <u>El número mayor es dos veces más 22 unidades que el otro</u>, o sea,
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Primero se encuenta el número menor, <u>reemplazando la segunda ecuación en la primera:</u>
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El número mayor es dado en <u>función de el menor</u>, o sea:
Los números son 31 y 84.
Otro problema resuelto por sistema de ecuaciones es dado en brainly.com/question/24637096
Answer:
Step-by-step explanation:
18 7/8 - 14 7/9
18 63/72 - 14 56/72
= 4 7/72
answer is B
Answer:
B
Step-by-step explanation:
B is the only answer that will ensure she gets graduate students in the sample without getting too few or too many.
