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Korolek [52]
3 years ago
9

If 75 is added to a number, the result is 39 less than three times the number.find the number

Mathematics
1 answer:
Luba_88 [7]3 years ago
3 0

First, we would set the number to x.

Then, we turn the words into an equation.

x+75 = 3x-39

Isolate the x.

-2x = -114

So...

x = 57

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A cookie jar will hold 75 cookies. How many cookie jars are needed to hold 700 cookies?
pychu [463]

Answer:

maybe 5250

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP
Vladimir [108]

Answer:

(0, 75), (75, 0), (-75, 0), (0, -75)

Step-by-step explanation:

I used desmos graphing calculator. c:

7 0
2 years ago
Please help me ASAP. ​
igomit [66]
<h3><u>Solution: </u></h3>

Radius of Cylindrical Pillar , r = 28 Cm = 0.28 m.

  • Height, h= 4 m.

Curved surface area of a Cylindrical = 2πrh.

Curved surface area of a pillar -

=  >  \: 2 \times   \frac{22}{7}  \times 0.28 \times 4 = 7.04 {m}^{2}

Curved surface area of 24 such Pillar :-

(7.04 x 24 = 168.96m²)..

  • Cost of painting an area of 1 m² = Rs8...

• Therefore , cost of painting 1689.6m² :-

( 168.96 x 8 = Rs 1351.68)...

3 0
2 years ago
When x = 4, the value of 2x0 + x! is
Romashka [77]
4!= 4*3*2*1

Therefore,

2x0+x!= 0+x! = 0+4!


4*3*2*1 = 24  (#1)
4 0
4 years ago
Read 2 more answers
( this is my summer math homework, please help!)
Ilia_Sergeevich [38]

Using proportions, the selling prices are given as follows:

1. $46.92.

2. $15.29.

3. $17.16.

4. $20,280.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

To find the selling prices, we have to multiply the original prices by either 1.02(2% sales tax) or 1.04(4% sales tax), hence they are given as follows:

  • 1. 46 x 1.02 = $46.92.
  • 2. 14.99 x 1.02 = $15.29.
  • 3. 16.50 x 1.04 = $17.16.
  • 4. 19500 x 1.04 = $20,280.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

3 0
2 years ago
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