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3 years ago

Find the value of x.

Mathematics

1 answer:

UNO [17]3 years ago

5 0

Answer:

x = 8

Step-by-step explanation:

Since you know that the line is 180 degrees in total, and there is a right angle, then you know . . .

180 = 90 + 40 + 6x + 2

Subtract 90 + 40 + 2 on both sides

48 = 6x

Divide by 6 on both sides.

x = 8

You have your answer.

Please mark for brainliest!! :D Thanks!

For more questions or information, comment below.

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What is the value of the expression below when y = 7?<br> 2y^2 + 9y + 2<br><br><br> Help me!!!!!

Flauer [41]

Answer:

163

Step-by-step explanation:

$2*(7^{2}) +9(7)+2$

$2*(49)+9(7)+2$

$98+63+2$

$=163$

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4 years ago

The ratio of the number of silver watches to the number of gold watches in a shop 2:3. Which of the following best describes the

goldfiish [28.3K]

Answer:

For every 2 silver watches, there are 3 gold watches :)

Step-by-step explanation:

For every 2 silver watches, there are 3 gold watches :)

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3 years ago

A buyer purchases 75 yards of material for $120. Then an additional 90 yards are ordered. What is the additional cost?

dezoksy [38]

Answer:

$128

Step-by-step explanation:

1. We need to find how much 1 yard of material cost.

If needed, use a calculator*

120/75=1.6

2. Now we need to know how much 15 yards of material cost.

1.6 times 15=24

3. The buyer ordered an additional 90 yards. If we know how much 75 yards cost, and 15 yards, all you have to do is...

120+24=144

90 yards=$144

4. The additional cost is $144

(Note: the total cost would be $264 (120+144=264))

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3 years ago

What will be the new position of the given point (-2,7)after translation of 3 units up and 1 units left?

Sindrei [870]

Answer:( -3, 10)

Step-by-step explanation:

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3 years ago

The volume V of a gas varies inversely as the pressure P and directly as the temperature A certain gas has a volume of 10 liters

Ad libitum [116K]

Answer:

Joint variation states that:

If z is directly proportional to x and inversely proportional to y,

i.e, $z \propto x$ , $z \propto \frac{1}{y}$

then the equation is in the form: $z = k\frac{x}{y}$ where k is the constant of variation.

From the given information: The volume V of a gas varies inversely as the pressure P and directly as the temperature

i.,e $V \propto T$ , $V \propto \frac{1}{P}$

by definition of joint variation:

$V = k\frac{T}{P}$ .....[1] where k is the constant of variation.

It is also given that a certain gas has a volume of 10 liters(L) , a temperature of 300 kelvins(K), and a pressure of 1.5 atmosphere(atm).

Substitute these given values in [1] to solve for k;

$10 = k\frac{300}{1.5}$

Simplify:

$10 = 200k$

Divide by 200 both sides we have;

$k = \frac{10}{200} =\frac{1}{20}$

Now, if a gas has a temperature of 400 kelvins and a pressure of 5 atm.

To find the volume (V);

Now substitute the given data and value of k in [1] we have;

$V = \frac{1}{20} \cdot \frac{400}{5} = \frac{20}{5} = 4$

Therefore, the Volume of a gas is, 4 liters

5 0

3 years ago