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insens350 [35]
3 years ago
13

What is the value of x in the equation 0.7x – 1.4 = –3.5

Mathematics
2 answers:
Mama L [17]3 years ago
5 0
The answer is x= -3. 0.7(-3)-1.4=-3.5
zzz [600]3 years ago
3 0
To solve this equation, you must do the following steps:

0.7x - 1.4 =-3.5
       +1.4   +1.4    Step one: add 1.4 to both sides to cancel out 1.4

0.7x = -2.1
----      -----         Step two: divide both sides by 0.7
0.7      0.7

x = -3              The answer is x = -3.

Hope this helps!! :)


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Solve for x x^2+3x<28
Klio2033 [76]
X² + 3x < 28
x² + 3x - 28 < 0
(x+7)(x-4) < 0

the zeros will be at x = -7  and x =4

∴ the solution of inequality
x ∈ (-7,4)

See the attached figure



6 0
3 years ago
Two numbers less than 8 that<br> have 3 as their GCF
Anarel [89]

Answer:

3 and 6

Step-by-step explanation:

GCF's or greatest common factors of numbers 1 to 8

1 : 1

2 : 1, 2

3: 1 , 3

4 : 1, 2, 4

5 : 1, 5

6 : 1, 2, 3, 6

7 : 1, 7

8 : 1, 2, 4, 8

3 and 6 have 3 as their GCF

4 0
2 years ago
Which of the following is equivalent to 25 7/2?
pickupchik [31]

Answer:

{25}^{ \frac{7}{2} }  =  \sqrt[2]{ {25}^{7} }  =  \sqrt{ {25}^{7} }  \\

4 0
3 years ago
Read 2 more answers
At the start of the month, the value of an investment was $73.42. By the end of the month, the value of the investment changed b
Aleonysh [2.5K]

Answer:

0.8%.

Step-by-step explanation:

Given:

At the start of the month, the value of an investment was $73.42.

By the end of the month, the value of the investment changed by a loss of $13.53.

Question asked:

What was the value, in dollars, of the investment at the end of the month?

What was the percent loss?

Solution:

At the start of the month, the value of an investment = $73.42.

Loss = $13.53.

<u><em>The value, of the investment at the end of the month = The value of an investment at the start of the month - loss</em></u>

The value, of the investment at the end of the month = $73.42 - $13.53

                                                                                         = $59.89

Thus, the value, of the investment at the end of the month is $59.89.

Now, we will find percent loss:-

Percent\ loss = \frac{Loss}{value\ of \ investment\ at \ start}

                    =\frac{59.89}{73.42} \\=0.81\%

Thus, percent loss on investment by the end of the month is 0.8%.

7 0
3 years ago
25 x 1/10 write in simplest form. Identify the two whole number between which the product lies
Margaret [11]

Answer:

25× 1/10 = 5/2

Step-by-step explanation:

5/2 or 2.5 lies between 2 and 3

4 0
2 years ago
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