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guajiro [1.7K]
3 years ago
9

Matthew hit 25 home runs last year. This year his home run production dropped 20%. How many home runs did he hit this year? *

Mathematics
1 answer:
Serga [27]3 years ago
5 0

Answer:

Step-by-step explanation:

Download pdf
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Using Equivalent Ratios
Soloha48 [4]

Answer:

80 skateboards where sold

Step-by-step explanation:

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3 years ago
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Manny observed a Northern Gannet, a deep diving seabird, hovering at a height of 10 meters above the ocean surface. The bird the
mr Goodwill [35]

Answer:

9.2 seconds.

Step-by-step explanation:

We have been given an equation that represents dive of a bird as y=x^2-10.3x+10, where x represents the time the dive lasted in seconds and y represents the height of the bird in meters.

We can see that our given equation is a parabola. The leading coefficient is positive, so our parabola will be an upward opening parabola.

Upon graphing our given equation, we will get our required graph as shown in the attachment.

As x represents the time the dive lasted in seconds and y represents the height of the bird in meters, so the bird will be at the surface when the graph will cross x-axis.

We can see that graph crosses x-axis at x=1.085\text{ and }x=9.215.

Upon rounding to nearest tenth, we will get:

x\approx 1.1\text{ and }x=9.2.

At x\approx 1.1 the bird dives in water and goes down the water surface and at x=9.2 the bird comes to the surface, therefore, the bird will be at surface after 9.2 seconds.

8 0
3 years ago
Read 2 more answers
Nina has prepared the following two-column proof below. She is given that ∠OLN ≅ ∠LNO and she is trying to prove that OL ≅ ON. S
Anit [1.1K]
Step number 3 should really be step number 7, it should be placed after step 4, 5, and 6. The reason is because we won't know that ∠LEO ≅ ∠NEO until after we learn that LE ≅ EN. Because of this, step 3 is in the wrong spot (mistake number one). The secod mistake is that step 7, triangle OLE ≅ triangle ONE is congruent by Angle-Side-Angle (ASA) Postulate, not Side-Angle-Side (SAS) Postulate. It is congruent by ASA because we know that both triangles have equal angles N and L. We also know that the perpendicular bisector creates a 90° angle. So m∠LEO = 90° and ∠NEO = 90°. Therefore, we already have 2 congruent angles in both of the triangles. We also learn that line LE ≅ EN based on the definition of a perpendicular bisector, so we have know one that one side of each triangle is congruent. It is ASA and not AAS, because the ASA Postulate states that two angles and one included side of one triangle are congruent to two angles and one included side of another triangle.
7 0
3 years ago
The price of an item has risen to $301 today. Yesterday it was $140 Find the percentage increase.
Ludmilka [50]

Answer: 115%

Step-by-step explanation: ur welcome

7 0
3 years ago
Read 2 more answers
Considerando las siguientes variables a = ancho y l = longitud, determina su valor, si se sabe que se cuenta con un rectángulo q
kogti [31]

Answer:

La longitud = 7 metros

La anchor = 10.5 metros

Step-by-step explanation:

La fórmula para el perímetro de un rectángulo es

P = 2L + 2W

L = longitud

A = ancho

P = 35 metros

se sabe que el doble de su ancho es igual a 3 veces su largo.

2A = 3L

Ancho = 3L / 2 = 1.5L

Sustituimos 1.5L por W

35 = 2 L + 2 (1.5 L)

35 = 2L + 3L

35 = 5 litros

L = 35/5

L = 7 metros

Por lo tanto, la longitud = 7 metros

Recuerda

A = 1.5 L

A = 1.5 × 7

A = 10.5 metros

La anchor = 10.5 metros

8 0
3 years ago
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