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3 years ago

Need help I don't understand this AHHH-

Mathematics

2 answers:

Sladkaya [172]3 years ago

7 0

The answer should be 70

tensa zangetsu [6.8K]3 years ago

6 0

Answer:

Step-by-step explanation:

You know the inside of a tringle has a total of 180 degrees. You also know that the angle V sits on a plane that is also 180.

Start by getting the value of angle V, so 180-120 = 60

With that, you can find angle U. Set up your formula as

U = 180 - 50 (Angle T) - 60 (Angle v)

U = 180 - 50 - 60 = 70

You can apply the same knowledge to the other questions as well.

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How do you write 549,867 in expanded form?

dalvyx [7]

In expanded form, 549,867 would be written like this: 500,000 + 40,000 + 9,000 + 800 + 60 + 7. This is how it is supposed to be.

Hope this helped!

Nate

6 0

3 years ago

Read 2 more answers

Sorry if it's a bother, but what's the answer to these? I'm having a little bit of trouble.

ladessa [460]

<h3>Solution (a):</h3>

<em>~Let's change 9.9² to 10² since we have to estimate.~</em>

10² = 100
Given expression: 9.9² × 1.79

<u>Solving the expression:</u>

9.9² × 1.79
=> 10² × 1.79
=> 100 × 1.79
=> 179

The estimated value of 9.9² × 1.79 is 179.

<h3>Solution (b):</h3>

<em>~Let's change √97.5 to √100 and 1.96 to 2</em> <em>since we have to estimate.~</em>

√100 = 10
Given expression: √97.5 ÷ 1.96

<u>Solving the expression:</u>

√97.5 ÷ 1.96
=> √100 ÷ 2
=> 10 ÷ 2
=> 5

The estimated value of √97.5 ÷ 1.96 is 5.

6 0

3 years ago

The length of a rectangle is four time its width. If the permeter of the rectangle is 100yd, find i t s length and width.

seropon [69]

Answer:

So let us call the shorter side, i.e the width: 'x'

So each length is four times the width = 4x

The perimeter consists of two widths and two lengths and equals 50 inches.

So:

x+x+4x+4x=50

solve for x:

10x = 50

to find x divide both sides by 10:

10x/10 = 50/10

x=5

So width equals 5 in and length is four times this i.e. 4x5=20

To check: 5+5+20+20=50 !!!!

Step-by-step explanation:

here is your anserw for your work please rate me the most brainlest in let me know if it right

8 0

3 years ago

A box of peanut-butter crackers was divided evenly among 6 children. Each child got 9 crackers. How many crackers were in the bo

tia_tia [17]

You would just multiply 9x6. This gives you 54

8 0

3 years ago

Read 2 more answers

A plane traveling with the wind travels 900 miles in 5 hours. the return trip is against the wind and takes 9 hours. find the ra

Aneli [31]

Using the relation between velocity, distance and time, it is found that:

The rate of the plane in still air is of 140 mph.

The rate of the wind is of 40 mph.

<h3>What is the relation between velocity, distance and time?</h3>

Velocity is <u>distance divided by time</u>, that is:

$v = \frac{d}{t}$

A plane traveling with the wind travels 900 miles in 5 hours, hence:

$v_a + v_w = \frac{900}{5}$

$v_a + v_w = 180$

The return trip is against the wind and takes 9 hours, hence:

$v_a - v_w = \frac{900}{9}$

$v_a - v_w = 100$

From the first equation, we have that:

$v_w = 180 - v_a{/tex]Replacing on the second:[tex]v_a - v_w = 100$

$v_a - 180 + v_a = 100$

$2v_a = 280$

$v_a = 140$

[tex]v_w = 180 - 140 = 40{/tex]

Hence:

The rate of the plane in still air is of 140 mph.

The rate of the wind is of 40 mph.

More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

4 0

2 years ago