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2 years ago

C is 8 more than half of n

Mathematics

2 answers:

Travka [436]2 years ago

8 0

C+8=1/2n should be your answer

zhenek [66]2 years ago

4 0

C=1/2n+8 would be the answer

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The equation y=0.002x-0.20 can be used to determine the approximate profit,y in dollars,of producing x items.solve for x. How ma

lakkis [162]

Answer:

1966600 items must be produced in other to profit $3933

Step-by-step explanation:

from the equation y = 0.002x -0.20

where y is the profit in dollars

and x is the number of items

then to get the number of item to be produced in other to profit $3933 ?

will be by substituting $3933 for y in the equation and solving for x,

3933 = 0.002x - 0.20

Firstly you will add 0.20 to both sides, which will be

3933 + 0.20 = 0.002x - 0.20 + 0.20

3933.20 = 0.002x

then we will divide both sides by 0.002

3933.20 / 0.002 = 0.002x / 0.002

therefore, x = 1966600

5 0

3 years ago

A = √7 + √c and b = √63 + √d where c and d are positive integers.

mrs_skeptik [129]

Answer:

$\displaystyle a:b=\frac{1}{3}$

Step-by-step explanation:

Ratios

We are given the following relations:

$a=\sqrt{7}+\sqrt{c}\qquad \qquad[1]$

$b=\sqrt{63}+\sqrt{d}\qquad \qquad[2]$

$\displaystyle \frac{c}{d}=\frac{1}{9} \qquad \qquad [3]$

From [3]:

$9c=d$

Replacing into [2]:

$b=\sqrt{63}+\sqrt{9c}$

We can express 63=9*7:

$b=\sqrt{9*7}+\sqrt{9c}$

Taking the square root of 9:

$b=3\sqrt{7}+3\sqrt{c}$

Factoring:

$b=3(\sqrt{7}+\sqrt{c})$

Find the ration a:b:

$\displaystyle a:b=\frac{\sqrt{7}+\sqrt{c}}{3(\sqrt{7}+\sqrt{c})}$

Simplifying:

$\boxed{a:b=\frac{1}{3}}$

3 0

3 years ago

0.40 - 2.55 5 please answer this

andrew-mc [135]

Answer:

-2.15

Step-by-step explanation: I was kind of confused on what you asked. If you were asking for 0.4-2.55, then that is the answer above.

7 0

2 years ago

Numerical expressions, one half the sum of nine and three

sammy [17]

Answer:

Step-by-step explanation:

(1/2)(9 + 3) = (1/2)(12) = 6

7 0

3 years ago

Read 2 more answers

Patton's troops covered 48 miles in 4 hours. he then increased the speed by 8 miles an hour. if the total distance was 108 miles

masya89 [10]

48 miles/4hrs = 12 mph

Increased Speed 12 mph + 8mph = 20 mph

Distance left 108 miles - 48 miles = 60 miles

Time left 60 miles/20 mph = 3 hours

7 0

3 years ago