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gayaneshka [121]
2 years ago
6

What is this answer16a2-4b

Mathematics
1 answer:
natima [27]2 years ago
7 0

Answer:

= 4(4 {a}^{2}  - b)

Step-by-step explanation:

16 {a}^{2}  - 4b

= 4(4 {a}^{2}  - b)

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The scale of a map uses 10 cm for 30 km.<br> How many centimeters does it use for 9 km?<br> +
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Answer:

3 km

Step-by-step explanation:

30 divided by 10 is 3.

9 divided by 3 is 3.

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Habiendose organizado un bingo se ha recaudado $1900. Por la entrada de hombres $15 y mujeres $10 y se ha reportado una asistenc
aev [14]

Answer:

The number of men was 80

The number of women was 70

Step-by-step explanation:

The question in English is

Having organized a bingo has raised $1900. For the entrance of men $15 and women $10 and an attendance of 150 people has been reported. Determine the number of men and the number of women who participated in the bingo.

Let

x----> the number of men

y----> the number of women

we know that

x+y=150

x=150-y -----> equation A

15x+10y=1,900 -----> equation B

substitute equation A in equation B and solve for y

15(150-y)+10y=1,900

2,250-15y+10y=1,900

15y-10y=2,250-1,900

5y=350

y=70

Find the value of x

x=150-70=80

therefore

The number of men was 80

The number of women was 70

3 0
3 years ago
Which of the following questions describes the equation = a/4 -20?
Gekata [30.6K]
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6 0
2 years ago
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Answer:

yes she can

Step-by-step explanation:

6 0
2 years ago
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