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Nina [5.8K]
3 years ago
12

Helpppp and explain this word problem!!!

Mathematics
1 answer:
Mashutka [201]3 years ago
6 0
Answer: 90 points (second option)

500+2x/8=85
500+2x=680
2x=180
x=90
90 on each test.

You might be interested in
Ana asiste al parque de aletismo cada tres dias desde el tercer dia del mes; mientras que Miguel lo hace cada 4 dias desde el 4
Assoli18 [71]

Answer:

The days where their attendances coincide include days 12 and 24 respectively.

Los días donde coinciden sus asistencias incluyen los días 12 y 24 respectivamente.

Step-by-step explanation:

English Translation

Ana attends the athletics park every three days from the third day of the month; while Miguel does it every 4 days from the 4th day of the month. On which days do both coincide?

Solution

Ana attends the athletic park every 3 days from the 3rd day of the month.

Miguel attends the athletic park every 4 days from the 4th day of the month.

This means that Ana attends the athletic park on the following days of the month, day 6, 9, 12, 15, 18, 21, 24, 27, 30 respectively.

While Miguel attends the athletic park on the following days of the month, day 8, 12, 16, 20, 24, 28 respectively.

(Stopped at 30 as all months have a Maximum of 31 days).

The days where their attendances coincide include days 12 and 24 respectively.

Basically on days where both frequencies of their visits have a common multiple, 12 and 24.

In Spanish/En español

Ana asiste al parque deportivo cada 3 días a partir del tercer día del mes.

Miguel asiste al parque deportivo cada 4 días a partir del 4to día del mes.

Esto significa que Ana asiste al parque deportivo los siguientes días del mes, día 6, 9, 12, 15, 18, 21, 24, 27, 30, respectivamente.

Mientras Miguel asiste al parque deportivo los siguientes días del mes, día 8, 12, 16, 20, 24, 28 respectivamente.

(Se detuvo a los 30 ya que todos los meses tienen un máximo de 31 días).

Los días en que coinciden sus asistencias incluyen los días 12 y 24 respectivamente.

Básicamente en los días en que ambas frecuencias de sus visitas tienen un múltiplo común, 12 y 24.

Hope this Helps!!!

¡¡¡Espero que esto ayude!!!

3 0
3 years ago
Choose the set of numbers with an average of 8.
Anastaziya [24]
The correct answer is B

To find the average we add all the given numbers together then divide by how many numbers there are.

A is 7

B is 8

C is 9
5 0
2 years ago
Read 2 more answers
If JL = 16, KM = 4x-1, and KM is a perpendicular bisector of JL, determine which of the following values are correct. Select ALL
ddd [48]

*see attachment for diagram

Answer:

C.KM = 15

D.KL = 17

F.Perimeter or triangle JKL = 50

Step-by-step explanation:

Given:

JL = 16,

KM = 4x-1

JK = 6x - 7

KL = 5x - 3

✔️Thus, let's find the value of x

Since KM is a perpendicular bisector of JL, it means JM = LM = ½*16 = 8

KM in ∆KJM is equal to KM in ∆KLM.

The angles opposite the two corresponding congruent sides in both triangles are also congruent to each other. Therefore, the third corresponding side and angles would be congruent to each other.

Thus:

JK = KL

6x - 7 = 5x - 3 (substitution)

Collect like terms

6x - 5x = 7 - 3

x = 4

✔️Find JK:

JK = 6x - 7

Plug in the value of x

JK = 6(4) - 7

JK = 24 - 7

JK = 17

✔️Find KM:

KM = 4x - 1

Plug in the value of x

KM = 4(4) - 1

KM = 16 - 1

KM = 15

✔️Find KL:

KL = 5x - 3

Plug in the value of x

KL = 5(4) - 3

KL = 20 - 3

KL = 17

✔️Find the Perimeter of ∆KLM:

Perimeter of ∆KLM = KM + KL + LM

= 15 + 17 + 8

= 40

✔️Find the Perimeter of JKL:

Perimeter of ∆JKL = JK + KL + JL

= 17 + 17 + 16

= 50.

The correct values are:

C.KM = 15

D.KL = 17

F.Perimeter or triangle JKL = 50

6 0
3 years ago
Pls help I have 5 minutes to do this and I’m really stuck
olganol [36]
One of them is 27 because it is correct
4 0
3 years ago
Read 2 more answers
Complete the equation of variation where y varies inversely as x and y = 8 when x = 10.
melisa1 [442]
Inverse variation is of the form y=k/x, or if you prefer yx=k.  "Inverse" variation because as x increases, y decreases...Anyway the equation can be expressed as:

y=k/x, we are given one point (10,8) so we can find the value of k, the constant of variation using those coordinates...

8=k/10  multiply both sides by 10

80=k so the equation is:

y=80/x
5 0
3 years ago
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