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3 years ago

What number must be subtracted from -5 for the difference to be -2. Explain your answer.

Mathematics

1 answer:

tester [92]3 years ago

3 0

Answer:

-3

Step-by-step explanation:

Let n be a number

Rewrite the sentence into something that can be interpreted better:

A number subtracted from -5 is -2

Now you can translate the statement into an equation:

-5 - n = -2

Solve for n

-n = 3

n = -3

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Solve 150 + 30

oksian1 [2.3K]

Answer:

i don't know how to do it

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2 years ago

What is the measurement of <3 and <1.

Hitman42 [59]

You can revise: the sum of the two adjacent angles is 180°
and the sum of the measurements of the three corners in a triangle is also 180°
<1= 180°-57°=123°
As <2=52°, so we have <3= 180°-(28°+71°+52°)= 180°-151°=29°
have fun

3 0

3 years ago

Is -1 1/2 rational?

stepan [7]

Answer:

yes

Step-by-step explanation:

-1 1/2 = -3/2

A rational number is a number that can be written as a fraction of integers.

-1 1/2 is the same as -3/2.

-3 and 2 are integers, so -3/2 is a fraction of integers.

Answer: yes

8 0

2 years ago

Read 2 more answers

A printer has a contract to print 100,000 posters for a political candidate. He can run the posters by using any number of plate

yulyashka [42]

Answer:

Step-by-step explanation:

From the given information;

Numbers of posters that can be printed in an hour = no of impression/hour × no of plate utilized in each impression.

= 1000x

Thus, the required number of hours it will take can be computed as:

$\implies \dfrac{100000}{1000x} \\ \\ =\dfrac{100}{x}$

cost per hour = 125

If each plate costs $20 to make, then the total number of plate will equal to 40x

∴

The total cost can be computed as:

$C(x) = (\dfrac{100}{x}) \times 125 + 20 x --- (1)$

$C'(x) = (-\dfrac{12500}{x^2}) + 20 --- (2)$

At C'(x) = 0

$\dfrac{12500}{x^2} = 20$

$\dfrac{12500}{20} = x^2$

$x^2= 625$

$x = \sqrt{625}$

x = 25

$C'' (x) = -12500 \times \dfrac{-2}{x^3} +0$

$C'' (x) = \dfrac{25000}{x^3}$

where; x = 25

$C'' (x) = \dfrac{25000}{25^3}$

C''(x) = 1.6

Thus, at x = 25, C'' > 0

As such, to minimize the cost, the printer needs to make 25 metal plates.

4 0

2 years ago

Ryder Industries is considering a project that will produce cash inflows of $92,000 a year for five years. What is the internal

RSB [31]

Answer:

20.02%

Step-by-step explanation:

Formula : $NVP = 0 =-P_0 + \frac{P_1}{(1+IRR)} + \frac{P_2}{(1+IRR)^2} + . . . +\frac{P_n}{(1+IRR)^n}$

$P_0 = 275000$

n = 1,2,3,4,5

Substitute the values in the formula :

$0 =-275000 + \frac{92000}{(1+IRR)} + \frac{92000}{(1+IRR)^2} + \frac{92000}{(1+IRR)^3}+\frac{92000}{(1+IRR)^4}+\frac{92000}{(1+IRR)^5}$

$275000 = \frac{92000}{(1+IRR)} + \frac{92000}{(1+IRR)^2} + \frac{92000}{(1+IRR)^3}+\frac{92000}{(1+IRR)^4}+\frac{92000}{(1+IRR)^5}$

Solving for IRR using calculator

IRR = 20.02

Hence the internal rate of return if the initial cost of the project is $275,000 is 20.02%

4 0

3 years ago

What number must be subtracted from -5 for the difference to be -2. Explain your answer.​

What number must be subtracted from -5 for the difference to be -2. Explain your answer.