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2 years ago

Cant figure it out. Help please

Mathematics

2 answers:

Svetach [21]2 years ago

8 0

Answer: 160

Step-by-step explanation:

(8×4 + 8×4 + 4×4) × 2 = 160

laiz [17]2 years ago

5 0

Answer:

area = 160 cm²

Step-by-step explanation:

area = (8x 4 x 4) + (4 x 4 x 2) = 160 cm²

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Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest

Fantom [35]

Answer:

$0.66$

Step-by-step explanation:

GIVEN: Suppose that in a certain county $37\%$ of voters are registered as Democrats, $29\%$ as Republicans, $7\%$ as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be $100x$ .

voters registered as Democrats $=37\%=\frac{37}{100}\times100x$

$=37x$

voters registered as Republicans $=29\%=\frac{29}{100}\times100x$

$=29x$

voters registered as Green party $=7\%=\frac{7}{100}\times100x$

$=7x$

Probability that first call will be to Democrats $P(A)=\frac{\text{total democrats}}{\text{total voters}}$

$=\frac{37x}{100x}=0.37$

Probability that first call will be to Republican $P(B)=\frac{\text{total republicans}}{\text{total voters}}$

$=\frac{29x}{100x}=0.29$

probability that the first call will be to either a Democrat or a Republican

$=P(A)+P(B)$

$=0.37+0.29$

$=0.66$

Hence the probability that the first call will be to either a Democrat or a Republican is $0.66$

6 0

3 years ago

A farmers field has the dimensions shown. He needs to find the area of the field so that he knows how much he needs to buy .What

kolbaska11 [484]

Answer:

Area of the rectangular Field = 3 8/9 km²

Step-by-step explanation:

Length of the field = 2 1/3 km

Width of the field = 1 2/3 km

Area of a rectangular Field = length × width

= 2 1/3 × 1 2/3

= 7/3 × 5/3

= (7*5)/(3*3)

= 35/9

Area of the rectangular Field = 3 8/9 km²

Perimeter of the rectangular Field = 2(length + width)

= 2(2 1/3 + 1 2/3)

= 2(7/3 + 5/3)

= 2(7+5/3)

= 2(12/3)

=2(4)

= 8 km

Perimeter of the rectangular Field = 8 km

5 0

3 years ago

KOUKLADINA HERE IS THE LIST OF BOTS>... I ALSO PUT THEM IN A MESSAGE TO YOU>>>>>>>>>>>>&g

Elodia [21]

Answer:

HUH WHAT DOES THIS MEAN?

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

What is the PROBABILITY that a person selected at random:

GaryK [48]

Oh ! ℹ️动听 u你第二日桑坦德……

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2 years ago

Solve each proportion.

Maslowich

To solve this question you need to cross multiply

So first do 3(2x+1) = 4(3x-2)
Which gives you 6x+1 = 12x-8

Now you solve it like a normal equation
6x+1 = 12x-8
9 = 6x
3/2 = x

3 0

1 year ago