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3 years ago

Solve x for 3х – 1 = - 13

Mathematics

2 answers:

ddd [48]3 years ago

7 0

Step-by-step explanation:

3x=-13+1

3x = - 12

x = -12/3

x= -4

Morgarella [4.7K]3 years ago

4 0

Answer:

X= -4

Step-by-step explanation:

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I ready scientific notation help

Airida [17]

The required value is $2\times10^9$

Step-by-step explanation:

Weight of ants = $4\times10^{-3}$

Weight of elephant= $8\times10^6$

We need to find, the total weight of about how many ants equals to the weight of an oversized elephant.

The equation given is:

$4\times10^{-3} \times a = 8\times10^6$

We need to find a:

Solving:

$4\times10^{-3} \times a = 8\times10^6\\a=\frac{8\times10^6}{4\times10^{-3}}\\if \,\,10^a/10^-b \,\,then\,\, 10^{a+b}\\a=2\times10^{6+3} \\a=2\times10^9$

So, the required value is $2\times10^9$

Keywords: Scientific Notation

Learn more about Scientific Notation at:

#learnwithBrainly

4 0

2 years ago

Hiii please help! i’ll give brainliest if you give a correct answer tysm!

lawyer [7]

Answer:

1/5

Step-by-step explanation:

The volume is found by multiplying the height, width, and length. So to find the height, you need to divide 1/100 by 1/4 and 1/5.

1/100 divided by 1/5 = 1/20

1/20 divided by 1/4 = 1/5

Hope this helps :)

8 0

3 years ago

Is this ordered pair a solution of the equation?<br><br> -2x + y = 4 ( 2 , 7 )

Bumek [7]

The ordered pair (2,7), is not a solution to the equation

8 0

3 years ago

Read 2 more answers

Rocko paid $12.50 for 25 game tickets.

soldi70 [24.7K]

Answer:

The constant of proportionality is 0.5

Step-by-step explanation:

We are given the following in the question:

Cost of 25 game tickets = $12.50

Cost of 35 game tickets = $17.50

The cost of ticket C(n) is directly proportion to the number of tickets n.

Thus, we can write:

$C(n) \propto n\\C(n) = an$

where a is the constant of proportionality.

Putting values, we get,

$12.50 = 25a\\\\\Rightarrow a = \dfrac{12.50}{25}\\\\\Rightarrow a = 0.5$

Thus, the constant of proportionality is 0.5

3 0

3 years ago

Is 9 a solution to 3y<27

arsen [322]

No, because if y is in fact 9 then the expression $3y$ evaluates to $27$ which is a false hence y cannot be 9 but rather $y\in(-\infty,9)$ .

Hope this helps.

8 0

3 years ago

Read 2 more answers