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Thepotemich [5.8K]
3 years ago
14

What is the value of X

Mathematics
2 answers:
xxMikexx [17]3 years ago
3 0

Answer:

20

Step-by-step explanation:

larisa [96]3 years ago
3 0

Answer:

29+21 - 180 = 130

so answer is 130

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Can anybody help me with my work
nadya68 [22]

Answer:

$5.75

Step-by-step explanation:

14.25 divided by 5= 2.85

2.85+2.85=5.75

7 0
2 years ago
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Tony took a math quiz last week. There were 80 problems on the quiz and Tony answered 70% of them correctly. How many problems d
Nutka1998 [239]

Answer:

56 problems

Step-by-step explanation:

So we already know that the answer is: 56. However, a good help is knowing how to obtain this answer from the data provided.

Tony's quiz had 80 questions

Tony correctly answered 70% of them.

We can always write a percentage amount as a ratio by dividing the amount by 100.

70\% = \frac{70}{100} = 0.7.

This means that for every 100 questions, tony will respond correctly 70.

So, if Toni did a questionnaire of n questions, the amount that will answer correctly is calculated by the following expression:

C = n*\frac{70}{100}

If n = 80 then:

C = 80 * \frac{70}{100}\\\\C = 56

7 0
3 years ago
Read 2 more answers
Após recuperar-se de uma cirurgia, o treinador da corredora Andrea estipulou um plano de treinamento diário: correr 500 metros n
user100 [1]

Explicación paso a paso:

La distancia recorrida el primer día = 500 m

Si aumenta la distancia en 200 m diariamente, entonces el total corrido diariamente formará una progresión aritmética con el último término de 10 km (10,000) como se muestra;

500, (500 + 200), (500 + 200 + 200) ... 10,000

500, 700, 900 ... 10,000

para que sepamos el número total de días usados ​​para la carrera, usaremos la fórmula para calcular el enésimo término de una secuencia aritmética como se muestra;

T_n = a+(n-1)d where;

n es el número de términos

a es el primer término de la secuencia

d es la diferencia común

Dado a partir de la secuencia:

a = 500

Tn = 10,000

d = 700-500 = 900-700 = 200

Sustituir en la fórmula y calcular el valor de n

10,000 = 500+(n-1)*200\\10,000 = 500+(200n-200)\\10,000 = 500-200+200n\\200n = 10,000-300\\200n = 9,700\\n = 9,700/200\\n = 48.5

Andrea habría alcanzado los 10.000km tras 48,5 días de carrera

8 0
3 years ago
The following chart shows the number of concert tickets sold and the profit earned. What is the slope of the line through these
Kaylis [27]

Answer:

The slope is 3 or 3/1.

Step-by-step explanation:

The amount of money will always be counted as a y value. So, you can do 345 - 255, which is 90, over 120 - 90, which is 30. You will have 90/30, that will simplify to 3 or 3/1. Therefore, your slope is 3.

7 0
3 years ago
Hayden put 2 cups of lemon juice and 3 times as much water into a jar of lemonade.
Inessa05 [86]

Answer:

64 oz  or 8 cups

Step-by-step explanation:

1 cup=8oz  8+8=16   2*3=6     6*8=48   48+16=64   64/8=8

4 0
3 years ago
Read 2 more answers
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