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luda_lava [24]
3 years ago
8

Cost equation Y=10x + 15 Y=25x + 8 At what point does these cost the same.

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

Answer:

x=7/15

Step-by-step explanation:

I'm not sure what x means but if you solve the equation it is 7/15

First you would set 10x+15 equal to 25x+8 which would look like 10x+15=25x+8

Then you would combine like terms by subtracting 8 from both sides to get 10x+7=25x

Then subtract 10x from both sides and get 7=15x

So then to get x by itself you would divide both sides by 15 and get 7/15=x

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Show that the equation x^3+6x-5=0 has a solution between x=0 and x=1
Mnenie [13.5K]

Answer:

Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.

Step-by-step explanation:

The equation f(x) given is:

f(x) = x^3+6x-5

For x = 0. the value of the expression is:

f(0) = 0^3+0-5\\f(0) = -5

For x = 1, the value of the expression is:

f(1) = 1^3+6-5\\f(1)=2

Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.

In other words, there is at least one solution for the equation between x=0 and x=1.

6 0
3 years ago
Add 5/8 inch, 11/16 inch, and 27/32 inch.
noname [10]
Hi,

Work:

Equation;

\frac{5}{8} + \frac{11}{16} + \frac{27}{32}

Write all numerators above the least common denominator 32.

\frac{5 + 11 + 27}{32}

Calculate the sum of positive numbers.

\frac{69}{32}

Simplify (FRACTION RESULT)

2 \frac{5}{32}

Or (DECIMAL RESULT)

2.15625

Hope this helps.
r3t40
6 0
3 years ago
Read 2 more answers
The mass of the sun is 2.13525×1030 kilograms. The mass of Mercury is 3.285×1023 kilograms. How many times greater is the mass o
Helga [31]
<span>6.5 x 10^6 To answer this question, you need to divide the mass of the sun by the mass of mercury. So 2.13525 x 10^30 / 3.285 x 10^23 = ? To do the division, divide the mantissas in the normal fashion 2.13525 / 3.285 = 0.65 And subtract the exponents. 30 - 23 = 7 So you get 0.65 x 10^7 Unless the mantissa is zero, the mantissa must be greater than or equal to 0 and less than 10. So multiply the mantissa by 10 and then subtract 1 from the exponent, giving 6.5 x 10^6 So the sun is 6.5 x 10^6 times as massive as mercury.</span>
8 0
3 years ago
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K - 2( k - ( 2- k ))-2
Naily [24]
K-2 I think I'm not sure though
4 0
3 years ago
What is the value of 14(38−14)+33÷9?
Ira Lisetskai [31]

Step-by-step explanation:

14 of 24 + 33 ÷ 9

336 + 33÷9

336 + 3.67

339.67

7 0
3 years ago
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