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Nutka1998 [239]
3 years ago
14

Is 4x-3=19 true,false,or open

Mathematics
2 answers:
jasenka [17]3 years ago
4 0

Answer:

True

Step-by-step explanation:

With questions like these, you can put any number in the option to make it correct. HOWEVER, in this question, the only correct answer would be 5.5.

igomit [66]3 years ago
3 0

Answer:

True

Step-by-step explanation:

4x-3=19

4x = 19 + 3

4x = 22

x = 22/4

x = 11/2

x = 5 1/2

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For which value of x does f(x) = 2
laila [671]

Answer:

<h2>x = -4</h2>

Step-by-step explanation:

<em>Look a the picture</em>.

Draw the horizontal line <em>y = 2</em>.

Common point: (-4, 2).

Conclusion: f(x) = 2 → x = -4

8 0
3 years ago
Please help asap!!!!!
emmasim [6.3K]
43 maybe? And if I’m wrong in advance-Sorry
3 0
3 years ago
Jeff reads 5/7 of a book in 4 hours. At this rate, how much did he read in 1 hour? Please answer this correctly. Don't put a lin
leonid [27]

Answer:

Jeff read 5/28 of a book in 1 hour.

Step-by-step explanation:

The rate given is 5/7 of a book read in 4 hours.

If the questions asks how much he read in 1 hour, it means the answer needed is a unit rate.

A unit rate is a rate per unit. In this case, a rate per hour.

Let’s find how much Jeff read in 1 hour:

5/7 in 4 hours is the rate given so:

5/7 ÷ 4

= 5/7 x 1/4

= 5/28 (already simplified/final answer)

SO, Jeff read 5/28 of the book in 1 hour.

Brainliest? Hope this helped!

5 0
3 years ago
Today only, a desk is being sold at a 33% discount. The sale price is $268. What was the price yesterday?
Serga [27]

Discount percent = 33%

Sale price = $268

Let the original price be $x.

So,

x - (33\% \: of \: x) = 268 \\  =  > x - ( \frac{33}{100}  \times x) = 268 \\  =  > x - ( \frac{33x}{100}) = 268 \\  =  >  \frac{100x}{100}  -  \frac{33x}{100}  = 268 \\  =  >  \frac{(100x - 33x)}{100}  = 268 \\  =  >  \frac{67x}{100}  = 268 \\  =  > 67x = 268 \times 100 \\  =  > 67x = 26800 \\  =  > x =  \frac{26800}{67}  \\  =  > x = 400

So, yesterday the price was $400.

5 0
3 years ago
Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make
Lisa [10]

9514 1404 393

Answer:

  The equation should be 8 (x minus 2.75) = 78, and she needs to sell each necklace for $12.50.

Step-by-step explanation:

The contribution margin of each necklace is the difference between its selling price (x) and its cost (2.75). Then the total profit from 8 necklaces would be ...

  8(x -2.75)

If Rita wants that profit to be $78, then she needs to solve the equation ...

  8(x -2.75) = 78 . . . . correct equation

The solution is ...

  x -2.75 = 9.75 . . . . divide by 8

  x = 12.50 . . . . . . . . add 2.75

She needs to sell each necklace for $12.50.

4 0
3 years ago
Read 2 more answers
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