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3 years ago

15

the total weight of the medals won by the top medal-winning nations in the 2012 London Olympic Games.

1 answer:

V125BC [204]3 years ago

7 0

22222222222222222222222222222222222222222222222222222222223333333333333333333333333333,221

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In the Granger cases of the 1870s involving railroad regulation, Supreme Court decisions were significant because the decisions

Llana [10]

<span>In the Granger cases of the 1870s involving railroad regulation, Supreme Court decisions were significant because the decisions established that

</span><span>2. government can regulate private business in the public interest

In response to the Supreme Court's 1886 ruling with regards to the Granger cases, Congress passed the Interstate Commerce Act of 1887. This act allowed federal regulations to be implemented on interstate lines.</span>

3 0

3 years ago

QUESTION IN PICTURE thx <3

Umnica [9.8K]

Answer:

7 1/9

Step-by-step explanation:

because I know i'm right

6 0

3 years ago

Read 2 more answers

huong and kathyrn each day impeoved their yards by planting rose bushes and ornamental grass. they bought their supplies from th

marta [7]

Answer:

One rose bush = $3

One bunch of ornamental grass = $4

Step-by-step explanation:

We can set up a system of equations to solve for this. Let cost of 1 rose bush be r and cost of 1 ornamental grass be g. Thus we can form 2 equations:

$14r+7g=70\\5r+14g=71$

We can multiply the first equation by -2 so that we can eliminate g. Thus, we have:

$(*-2)14r+7g=70\\5r+14g=71\\-------\\-28r-14g=-140\\5r+14g=71\\--------\\-23r=-69\\r=\frac{-69}{-23}=3$

Thus, 1 rose bush is $3. Now plugging in r = 3 into the first original equation, we can solve for g:

$14r+7g=70\\14(3)+7g=70\\42+7g=70\\7g=70-42\\7g=28\\g=\frac{28}{7}=4$

Thus, 1 bunch of ornamental grass is $4.

5 0

3 years ago

Two mechanics worked on a car. the first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. together they

Ksenya-84 [330]

Alright, lets get started.

Suppose first mechanic charges= x

So, second mechanic charges will be = $(125 - x)$ (because total of their rates was 125)

first mechanic worked for 5 hours, and the second mechanic worked for 15 hours and together they charged a total of $1225

Means

$5 x + 15 (125-x) = 1225$

$5 x + 1875 - 15 x = 1225$

$1875 - 10 x = 1225$

Adding 10 x in both sides

$1875 - 10 x + 10 x = 1225 + 10 x \\1875 = 1225 + 10 x$

Subtracting 1225 from both sides

$1875 - 1225 = 1225 + 10 x - 1225\\650 = 10 x$

Dividing 10 in both sides

$\frac{650}{10} = \frac{10x}{10}$

x = 65

For second mecahnics rate = 125 - 65 = 60

Hence The mechanic who worked 5 hours charged $ 65 per hour, the one who worked 15 hours charged $ 60 per hour: Answer

Hope it will help :)

3 0

3 years ago

What is the measure of angle 3 if the measure of

ELEN [110]

Answer:

Angle 3 = 86.8

Angle 6 = 96.4

Angle 7 = 93.2

Step-by-step explanation:

Given :

angle 6 = 4x + 10

angle 7 = 2x + 40

=> angle 6 + angle 7 = 180° { linear pair }

=> 4x+10 +2x+40 = 180

=> 6x+50 = 180

=> 6x = 180-50

=> 6x = 130

=> x = 130/6

=> x = 21.6

so ,the measure of angle 6 = 4x + 10 = 4(21.6) +10 = 86.4+10 = 96.4

the measure of angle 7 = 2x + 40 = 2(21.6) +40 = 43.2+50 = 93.2

now angle 7 = angle 4 + angle 5

and angle 3 + angle 4 + angle 5 = 180°

so, angle 7 + angle 3 = 180

=> 93.2 + angle 3 = 180

=> angle 3 = 180 - 93.2

=> angle 3 = 86.8

8 0

2 years ago