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3 years ago

4) PLEASE HELP WITH QUESTION. MARKING BRAINLIEST AND POINTS GIVEN!!! :D

Mathematics

1 answer:

Anna007 [38]3 years ago

8 0

I think your answer is A. :)

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Solve x in the diagram below

zzz [600]

A straight line is 180°, so you add these two angles together because they make a straight line:

3x° + 75° = 180°

To find "x", isolate/get the variable "x" by itself in the equation. Subtract 75° on both sides

3x° + 75° - 75° = 180° - 75°

3x° = 105° Divide 3 on both sides to get "x" by itself

x = 35°

PROOF

3x° + 75° = 180° Substitute/plug in 35 into "x" since x = 35°

3(35)° + 75° = 180°

105° + 75° = 180°

180° = 180°

8 0

4 years ago

There are some goats, cows and, sheep. 2/5 of the animals were goats. There were three times as many sheep than cows. If there w

kobusy [5.1K]

Answer:

81 sheep were there on the farm

Step-by-step explanation:

Consider the provided information.

Let x represents the number of goats.

y represents the number of cows.

z represents the number of sheep.

Therefore, the total number of animals are x+y+z

2/5 of the animals were goats. This can be written as:

$\frac{2}{5}(x+y+z)=x$

There were three times as many sheep than cows.

$z=3y$

There were 45 more goats than cows,

$x=45+y$

Substitute the value of x and z in equation 1.

$\frac{2}{5}(45+y+y+3y)=45+y$

$\frac{2}{5}(45+5y)=45+y$

$2(9+y)=45+y$

$18+2y=45+y$

$y=27$

Hence, there are 27 cows.

Substitute the value of y in $x=45+y$

$x=45+27$

$x=72$

Therefore, there are 72 goats.

Substitute the value of y in $z=3y$

$z=3(27)$

$z=81$

Thus, there are 81 sheep.

6 0

3 years ago

What is the relationship between area and square units

tino4ka555 [31]

The relationship between square units is, area is measured in square units. Plus, square units are in an area sometimes.

3 0

3 years ago

Read 2 more answers

a family uses 1303 kWh of electric energy in a month. if the power company charges $0.08 cents per kilowatt, what is the total e

marshall27 [118]

$104.25 is the electric bill for the month

3 0

3 years ago

Simplify 8 - {x - (5 + x)}. 3 13 -2x + 3 -2x + 13

love history [14]

Simplify 8 - {x - (5 + x)}:

Order of operations rules require that you perform work inside parentheses first. Thus, do this first: x - (5 + x) => x - 5 - x => -5.

Now we have the following: 8 - {-5} => 8+5 = 13 (answer)

Please note: To avoid confusion, please separate answer choices, such as 3 13 -2x + 3 -2x + 13, by using commas or by putting each choice on its own new line:

3
13
-2x + 13
I was and still am unsure of what you meant here.

5 0

3 years ago