The concentration of platinum in a necklace is 7%. The necklace weighs 16 g. Find the amount of platinum in the necklace.

Answers

Answer 1
Answer: 1.12g of platinum is in the necklace.

Related Questions

I am a number greater than 40,000 and less than 60,000. My ones digit and tens digit are the same. My ten-thousands digit is 1 less than 3 times the sum of my ones digit and tens digit. My thousands digit is half my hundreds digit, and the sum of those two digits is 9. What number am I?
Yiip yip hurrah!yipee! yi yipeeee!
Solve the equation A = 2LW + 2LH + 2WH for H.a) H = A - 2LW/2L + 2Wb) H = A + 2LW/2L + 2Wc) H = A - 2LW/4LWd) H = A/2L + 2W - 2LW
Show an equation of the perpendicular bisector of (-2,1) and(4,-1) is y=3x-3​
What is the slope of the graph of 12x + 3y = –17?A.-4 B.negative one-fourth C.one-fourth D.4

Zero is _____ a divisor.
a. always
b. sometimes
c. never

Answers

c never is the answer

Your answer is C. Never.

Hope this helps.

Answer two questions about Equations AAA and BBB:\begin{aligned} A.&&4x+2&=6-x \\\\ B.&&5x+2&=6 \end{aligned}
A.4x+2=6−x
B.5x+2=6


1) How can we get Equation B from Equation A?
Choose 1 answer:


(Choice A)
A
Add/subtract a quantity to/from only one side

(Choice B)
B
Add/subtract the same quantity to/from both sides

(Choice C)
C
Multiply/divide only one side by a non-zero constant

(Choice D)
D
Multiply/divide both sides by the same non-zero constant
2) Based on the previous answer, are the equations equivalent? In other words, do they have the same solution?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Yes

(Choice B)
B
No

Answers

Answer:

answer is d

Step-by-step explanation:

Answer:

A AND B

Step-by-step explanation:

They both have the same solution

What number is 1.6 more than 3.7

Answers

Answer: 5.3

Step-by-step explanation: To solve this question, all you need to do is add the numbers together. 1.6+3.7=5.3

Answer:

the answer is5.3

Step-by-step explanation:

3.7+1.6=5.3

Two towns are 1,100 miles apart. A group of hikers Starts from each town and walks down the trail toward each other. They meet after a total hiking time of 240 hours. If one group travels 2 1/2 mile per hour slower than the other group, find the rate of each group.

Answers

Answer:

3.54 and 1.04

Step-by-step explanation:

Given:

Two towns are 1,100 miles apart.

A group of hikers Starts from each town and walks down the trail toward each other..

They meet after a total hiking time of 240 hours.

If one group travels 2 1/2 mile per hour slower than the other group.

Question asked:

Find the rate of each group.

Solution:

Let speed of faster hiker = x\ mph

Speed of slower hiker = x-(5)/(2)\ mph

As we know:

Distance=speed* time

Total distance between two town = Total combined speed of both hikers *Total combined time taken

1100=(x+x-(5)/(2) )*240\n \n Dividing\ both\ sides\ by\ 240\n \n 4.58=(x+x-(5)/(2) )\n \n 4.58=2x-(5)/(2) \n \nAdding\ both\ sides\ by\ (5)/(2) \n \n 4.58+ (5)/(2)=2x- (5)/(2)+ (5)/(2)\n \n (2*4.58+5)/(2) =2x\n \n (14.16)/(2) =2x\n \n By \ cross\ multiplication\n \n 2*2x=14.16\n \n 4x=14.16

By\ dividing\ both\ sides\ by \ 4\n \n x=3.54\ miles\ per\ hour

Speed of faster hiker = x\ mph = 3.54 miles per hour.

Speed of slower hiker = x-(5)/(2)\ mph=

3.54-(5)/(2) =3.54-2.5=1.04\ miles\ per\ hour

Therefore, speed of faster hiker is 3.54 miles per hour and speed of slower hiker is 1.04 miles per hour.

The sum of 3 consecutive integers is -27. what are the numbers?

Answers

Call x the smallest of the three numbers, then:

x + (x+1) +(x+2) = -27

x + x + 1 + x + 2 = -27

3x+3 =-27
3x = -27 -3
3x = -30
x = -30/3 = -10

The three numbers are: -10, -9 and -8.

Which statements accurately describe the function f(x) = 3(16)^3/4? Check all that apply.The initial value is 3.
The initial value is 48.
The domain is x > 0.
The range is y >0.
The simplified base is 12.
The simplified base is 8.

Answers

Answers:

These are the statements that apply:

The initial value is 3.

The range is y >0.

The simplified base is 8.

Explanation:

1) Given expression:

f(x)=3(16)^{(3)/(4) x

2) Check every statement:

a) The initial value is 3?

initial value ⇒ x = 0 ⇒

f(0)=3(16)^(0)=3(1)=3

∴ The statement is right.

b) The initial value is 48?

Not, as it was already proved that it is 3.

c) The domain is x > 0?

No, because the domain of the exponential functions is all the Real numbers.

d) The range is y > 0?

That is correct, the exponential function is continuous, and monotonon increasing.

The limit when x → - ∞ is zero, but y never reaches zero, and the limit when x → ∞ is + ∞, meaning that the range is y > 0.

e) The simplified base is 12?

This is how you simplify the base:

3(16)^{(3)/(4) x}=3{{(16}^((3/4)))}^x=3(16^(3/4)})^(x)=3((2^4)^(3/4))^x=3(2^3)^x=3(8)^x

Which shows that the simplified base is 8 (not 12).

f) The simplified base is 8?

Yes; this was just proved.

Answer:

a,c,e

Step-by-step explanation: