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3 years ago

Does anyone know the answer

Mathematics

1 answer:

forsale [732]3 years ago

6 0

Answer:

x = 22

Step-by-step explanation:

90 = (5x - 20)

+20 +20

110 = 5x

/5 /5

22 = x

Hope this helps!

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Six students are working to simplify the expression shown.

krok68 [10]

Equivalent and Fully Simplified:

8+7x+4y

Equivalent and not fully simplified:

8+12x-5x+4y

15+7x+4y-7

Note Equivalent:

15-7x-4y

8+17x+4y

8+11y

Step-by-step explanation:

Given expression is:

$15+12x-5x+4y-7$

We will simplify the expression one by one

$8+12x-5x+4y$

$8+7x+4y$

Now we can categorize the expressions in boxes given below

Equivalent and Fully Simplified:

8+7x+4y

Equivalent and not fully simplified:

8+12x-5x+4y

15+7x+4y-7

Note Equivalent:

15-7x-4y

8+17x+4y

8+11y

Keywords: Expressions, simplification

Learn more about expressions at:

#LearnwithBrainly

6 0

3 years ago

P varies directly with the square of d

noname [10]

Answer:

P = KD^2

Step-by-step explanation:

K is the constant

6 0

3 years ago

In Triangle DEF, the sum of the measures of Angle D and Angle E is 110. The sum of the measures of Angle E and Angle F is 150. F

nevsk [136]

Answer:

<D + <F = $100^{o}$

Step-by-step explanation:

Given: <D + <E = $110^{o}$

<E + <F = $150^{o}$

But, the sum of angles in a triangle = $180^{o}$ .

Thus;

<D + <E + <F = $180^{o}$

$110^{o}$ + <F = $180^{o}$

⇒ <F = $180^{o}$ - $110^{o}$

= $70^{o}$

<F = $70^{o}$

Also,

<E + <F = $150^{o}$

<E + $70^{o}$ = $150^{o}$

<E = $150^{o}$ - $70^{o}$

= $80^{o}$

<E = $80^{o}$

So that;

<D + <E = $110^{o}$

<D + $80^{o}$ = $110^{o}$

<D = $110^{o}$ - $80^{o}$

= $30^{o}$

<D = $30^{o}$

⇒ <D = $30^{o}$ , <E = $80^{o}$ , and <F = $70^{o}$ .

Therefore;

<D + <F = $30^{o}$ + $70^{o}$

= $100^{o}$

8 0

3 years ago

I need 1/2 - 1/3 = please

Murljashka [212]

Convert to common denomenator (bottom number)

2 and 3
common denomenator is 2 times 3 or 6

multiply each by 1 or x/x where x=x to convert so
1/2 times 3/3=3/6
1/3 times 2/2=2/6
3/6-2/6=(3-2)/6=1/6

8 0

3 years ago

How can you use a formula for one measurement to write a formula for a different measurement?

Dmitrij [34]

Answer:

Write the formula for one measurement, then solve the formula for the different measurement you want to find and use this new formula to find that measurement.

Step-by-step explanation:

We can understand this through an example.

If we need to find the lenght of a rectangle whose width is 4 feet and whose perimeter is 28 feet, we can use a formula for one measurement to write a formula for a different measurement:

- We need to write the formula for the perimeter of a rectangle:

$P=2l+2w$