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SCORPION-xisa [38]
3 years ago
13

Last week Sally had thirty-nine dollars. She washed cars over the weekend and now has sixty-four dollars. Write an equation that

represents this situation.
Mathematics
1 answer:
mafiozo [28]3 years ago
4 0

Answer:

64= 39+x

Step-by-step explanation:

x represents the unknown or in this case the money made to get to 64

39 is what she started with and 64 is the final total

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A video game company surveys a random sample of 225 of its best customer and finds that the average gamer spends $406 a year on
Burka [1]
The second survey is more believable because there is randomness in the second rather than the first survey. Since the second company surveyed in all interest levels while the first company only surveyed their best customers. Random sampling like what the second company did helps produce representative samples by removing voluntary response bias and undercover age bias.
8 0
3 years ago
PLEASe PLEASE HeLP PLEASEEEEE
MA_775_DIABLO [31]

Answer:

option A

x=15/2

Step-by-step explanation:

refer to the above attachment

sorry for the messy writing:^

3 0
3 years ago
El Sr negron tiene que redactar una serie de cartas en su oficina. A Lourdes le toma 6 horas pasar todas las cartas. A su compañ
vodka [1.7K]

El Sr negron tiene que redactar una serie de cartas en su oficina. A Lourdes le toma 6 horas pasar todas las cartas. A su compañera rosabel, le toma 9 horas en realizar la misma tarea. Si ambas trabajan juntas para hacer todo el trabajo d ela oficina,

a. Cuánto tiempo le tomará a ambas realizar el trabajo?

Answer:

3.6 horas

Step-by-step explanation:

Sea el número total de horas que ambos trabajaron = T

Deje que la cantidad total de letras por las que pasaron = 1

De la pregunta, se nos dice:

Lourdes necesitó 6 horas para revisar las cartas.

Esto significa que, cada 1 hora, Lourdes revisaba 1/6 de las letras

Rosabel tardó 9 horas en leer las letras.

Esto significa que, cada 1 hora, Rosabel revisó 1/9 de las letras

Por lo tanto,

(1/6 × 1) T + (1/9 × 1) T = 1

(1/6 + 1/9) T = 1

(3 + 2/18) T = 1

(18/5) T = 1

5T / 18 = 1

Cruz multiplicar

5T = 18

T = 18/5

T = 3.6 horas

Por lo tanto, les tomó a ambas 3.6 horas hacer el trabajo.

7 0
3 years ago
Part 1
I am Lyosha [343]

Answer:

Using technology or other resources, research the average distance that each planet is from the Sun (in kilometers). Once you have found the distance, create a chart showing each planet's distance from the Sun. The Sun itself will not receive a label since it is your starting point. For example, Mercury is located an average of 57,909,000 km from the Sun, so on the chart, Mercury would be labeled with a distance of 57,909,000. Use the example of the chart below to help you get started:

Planet Distance from Sun (in Km) Distance in scientific notation

Mercury 57,909,000  5.7909 X10^7

Venus 108.212.290.56  1.0821229056 X10^8

Earth  149,604,618.24  1.4960461824 X10^8

Mars  227,936,640  2.2793664 X10^8

Jupiter  778,412,020  7.7841202 X10^8

Saturn   1,433,442,700.8  1.4334427008 X10^9

Uranus  2,870,972,200  2.8709722 X10^9

Pluto  5,906,380,000  5.90638 X10^9

Step-by-step explanation:

:)

4 0
3 years ago
A recipe has a ratio of 2 cups of flour to 3 cups of sugar. Find the per unit rate in terms of each ingredient
frutty [35]

2 \div 3 = 1 \frac{1}{2}

U would take 2 to 3 and divide it and that would be ur per unit

4 0
3 years ago
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