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barxatty [35]
3 years ago
10

Evaluate -8z + 5 - 2x - 4 + 5x when x=2 before and after simplifying.

Mathematics
2 answers:
Alchen [17]3 years ago
6 0

Answer:

-8z+5-4-4+10=0

-8z=-5+4+4-10

-8z=-7

z=7/8

im not sure tho

Marianna [84]3 years ago
4 0

The answer is -8z+7

You just have to put in number 2 to the variable x. It's really simple.

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Fern knitted 20 scarves over 5 nights. After 8 nights of knitting, how many scarves would fern have made in total.
Studentka2010 [4]

Answer:

Fern will knit 32 scarves in 8 nights.

Step-by-step explanation:

Number of scarves knitted by Fern in 5 night = 20

Relation between number of scarves knitted and number of nights is proportional,

Therefore, Number of scarves knitted (s) ∝ Number of nights spent to knit the scarves (n)

s ∝ n

s = kn

k = \frac{s}{n}

Here, k = proportionality constant

For s = 20 and n = 5,

k = \frac{20}{5}

k = 4 scarves per night

For 8 nights, by using the same proportionality rule,

k = \frac{s}{8}

4 = \frac{s}{8}

s = 32 scarves

Therefore, Fern will knit 32 scarves in 8 nights.

4 0
3 years ago
Suppose you are the diving officer on a submarine conducting diving operations. As you conduct your operations, you realize that
madam [21]

Answer:

If you need additional resources to support virtual learning, please ... 9) I can solve problems involving a system of linear inequalities. ... of the submarine is 50 ft below sea level when it starts to descend ... ft/s. It dives at that rate for 5 s. ... After the initial 5-second descent, the submarine increases its rate of ...

Step-by-step explanation:

4 0
3 years ago
Se realizó una encuesta a 10 niños sobre su preferencia en el sabor del pastel. Fresa 20% chocolate 50% y vainilla 30%. Cuál es
dangina [55]

Answer:

a) ¿Cuál es el sabor favorito de los niños?

Chocolate con 50%

b) ¿Cuál es el sabor que menos les gusta a los niños?

Fresa con 20%

c) ¿Qué número de niños representan el 15%, 35% y 50%?

Tenemos 10 hijos,

Por lo tanto

1) 15% = 1.5

2) 35% = 3.5

3) 50% = = 5

Step-by-step explanation:

Se encuestó a 10 niños sobre su preferencia por el sabor del pastel. Fresa 20%

Chocolate 50%

Vainilla 30%.

a) ¿Cuál es el sabor favorito de los niños?

El sabor favorito de los niños es el sabor con mayor porcentaje = Chocolate con 50%

b) ¿Cuál es el sabor que menos les gusta a los niños?

El sabor que menos les gusta a los niños es el sabor con el menor porcentaje = Fresa con 20%

c) ¿Qué número de niños representan el 15%, 35% y 50%?

Tenemos 10 hijos,

Por lo tanto

1) 15% = 15% × 10 = 1,5

2) 35% = 35% × 10 = 3,5

3) 50% = 50% × 10 = 5

6 0
2 years ago
How many years is 694.44 days?
antoniya [11.8K]

Answer:

1.9 years

Step-by-step explanation:

There are 365 days in a year

694.44 / 365 = 1.9

Hope this helps!

6 0
3 years ago
Read 2 more answers
Question #2 <img src="https://tex.z-dn.net/?f=5x%2B9%5Cleq%204" id="TexFormula1" title="5x+9\leq 4" alt="5x+9\leq 4" align="absm
shutvik [7]
X is less than or equal to -1
6 0
3 years ago
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