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3 years ago

Write an equation and solve: Twice a number, increased by 3 is 7.

2 answers:

8 0

The unknown number canbe replaced with x. So twice a number is 2x and in creased by 3 is +3. so the equation would be 2x + 3= 7 and the unknow number, or x, is 2. 2 times two is 4 plus 3 = 7

ipn [44]3 years ago

7 0

2x+3=7
2x=4
x=2
The answer is A) 2

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Find the value of x

givi [52]

Answer:

110°

Step-by-step explanation:

In triangle AOB

OA = OB (radii of same circle)

$m\angle OAB = m\angle OBA =20\degree$

$m\angle AOB = 180\degree - (20\degree +20\degree)$

$m\angle AOB = 180\degree - 40\degree$

$m\angle AOB = 140\degree$

$m\widehat {ACB} =m\angle AOB = 140\degree$

(measure of minor arc is equal to corresponding central angle)

$x\degree = \frac{1}{2} (360\degree - 140\degree)$

(inscribed angle theorem)

$x\degree = \frac{1}{2} \times 220\degree$

$\huge\purple {x = 110}$

3 0

3 years ago

Pls help me with this

Bess [88]

Non proportional you can see by the way the graph is

8 0

3 years ago

M < c Enter the number that belongs in the green box.

AVprozaik [17]

32?
Im not sure but i hope its right

4 0

3 years ago

Read 2 more answers

Carlos’s family had breakfast at one restaurant and dinner at another restaurant while on vacation. The service during breakfast

OleMash [197]

To solve part a, do the following.
49.84-44.50=5.34
5.34/44.50=x/100
after solving the proportion, x would be equal to 12.
To solve part b, do the following.
50+12=62
To solve part c, do the following.
The amount of the tip is:
x/57.50=62/100
which is 35.65
The total bill is:
35.65+57.50=93.15

8 0

4 years ago

Are 3(h+4) and 3h + 12 equivalent? Explain using the table from Question 4.

Kruka [31]

Yes because once you distribute the 3 in the first equation it turns it into 3h+12

6 0

3 years ago