What is half of 5.20

Answers

Answer 1

Answer: 5.20 divided by 2 is 2.6
then to check all you do is 2.6*2 and you get 5.20

Hope this helped!!! :D

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Find the value of x.

Answers

i think x+(180-4x)=108
x=24

Question

Find the value of x.

Answer

x=24

Hope this helps!

13-9x7divided by(4+3)=

Answers

answer is 4

because 13 - 9 is 4
then 4 x 7 is 28
then 4 + 3 is 7
so 28 / 7 is 4

so (13-9)*7 so 13-9 is 4.

so 4*7= 28

and then you have to do 4+3 = 7

so 28/7 will be 4 you the answer is 4.

6. Describe how you would make 250 mL of a 4.5 M silver nitrate solution. SHOW ALL CALCS.

Answers

Answer:

Dissolve 190 grams of silver nitrate in 250 mL of water.

Step-by-step explanation:

First, find the moles of AgNO₃ from the volume and concentration.

0.250 L × 4.5 mol/L = 1.125 mol

Next, find the mass of AgNO₃ using the molar mass.

1.125 mol × 170 g/mol = 191.25 g

Rounded to two significant figures, dissolve 190 grams of silver nitrate in 250 mL of water.

Unit rate for 240 kilometers and 2.5 hours show your work

Answers

To find the unit rate, you have to divide 240 by 2.5.
240/2.5 = 96
The answer is = 96 kilometers per hour.

An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that apply. This function can be represented by the quadratic equation f(x)=0.15(x+60)^2 This situation can be represented by the exponential function f(x)=60 x 1.15^x This function has no x-intercept After 4 years the value of the investment will be $120.00 After 6 years the value of the investment will be $653.00 After 7.86 years the value of the investment will be 3 times the initial value After 8 years the value of the investment will be $184.00

Answers

Given:
initial investment = $60.
increase in value by 15% each year

The function that best represents the above problem is: f(x) = 60 * (1.15)^x

f(4) = 60 * (1.15)⁴ = 60 * 1.75 = 105.00
f(6) = 60 * (1.15)⁶ = 60 * 2.31 = 138.60
f(7.86) = 60 * (1.15)⁷.⁸⁶ = 60 * 3 = 180
After 7.86 years the value of the investment will be 3 times the initial value
f(8) = 60 * (1.15)⁸ = 60 * 3.06 = 183.60
After 8 years the value of the investment will be $184.00

5/18 is what percentage of 25/72

Answers

$(5)/(18)/(25)/(72)*100\% =(5)/(18)*(72)/(25)*100\%=(5*72)/(18*25)*100\%=(1*8)/(2*5)*100\%=$
$=(8)/(1)*10\%=8*10\%=80\%$

The answer is 5 ..............

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