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omeli [17]
2 years ago
15

Please help What is x=

Mathematics
1 answer:
zepelin [54]2 years ago
3 0

Answer

72°

Step-by-step explanation:

sum of angles of a triangle= 180°

Let, the value of the unknown angle in the triangle be y°

Therefore,

30° + 42° + y° = 180°

or,

72° + y° = 180°

or,

y° = 180° - 72°

or,

y° = 108°

We know that a straight line = 180°

here, AM is a straight line (A till the arrow sign of the line is a straight line, you should have named the last point of the line drawn)

Therefore,

y° + x° = a straight line = 180°

we have known before that, y° = 108°

108° + x° = 180°

x° = 180° - 108°

x° = 72°

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julia-pushkina [17]

Answer:

1260

Step-by-step explanation:

He asked 180 people and 63 said cookies so I think you have to do 63 out of each 180 people so you would do 3600 ÷ 180 = 20, 20 x 63 =1260

Not sure if this is right, hope this helps

8 0
3 years ago
while shopping at a clearence sale samantha finds a $60 dress on sale for 25% off. samantha also finds a 50% off coupon.
tatuchka [14]
She would pay 15 dollars for the dress because it would be 75 percent off. 

6 0
3 years ago
one number is four times as large as another if the numbers are added together the result is six less than seven times the small
liubo4ka [24]

Answer:

The numbers are 12 and 3.

Step-by-step explanation:

We can solve this problem by working with the information we have and setting up some equations.

We know that one number is four times as large as another. So, let the smaller number be represented by the variable x and the bigger number be represented by 4x, since it is four times as large.

Now, we know that if the numbers are added together, then the result is six less than seven times the smaller number. This can also be represented by the equation 4x + x = 7x - 6.

Let's solve that equation like so:

4x + x = 7x - 6\\5x =  7x - 6\\-2x = -6\\x = 3

So, the smaller number must be 3 (remember that x represented the smaller number). To find the bigger number, all we need to do is multiply 3 by 4, which gives us 12. Therefore, the numbers are 12 and 3.

4 0
3 years ago
If the rate of change (ROC) of the function is quadratic, what is the function type ? Choose the correct answer.
evablogger [386]

If the rate of change (ROC) of the function is quadratic, then the function type is cubic

<h3>What is rate of change?</h3>

The rate of change of a function is the rate at which the output values change over the input value

The rate of change of a function is one degree less than the actual function

This means that, a cubic function will have a quadratic rate of change

Hence, the correct option is (d)

Read more about rate of change at:

brainly.com/question/8728504

4 0
2 years ago
Which of the following approaches would be an appropriate first step? select all that apply​
Eva8 [605]

Answer:

Divide both sides by -1/3, Apply distributive property, add 1/3 to both sides

Step-by-step explanation:

If its confusing just replace -1/3 with a simple number such as -1, to make it make sense.

4 0
2 years ago
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