A coin is made from copper and nickel.

84% of its weight is copper.
16% of its weight is nickel.

Find the ratio of the weight of copper to the weight of nickel.
Give your ratio in its simplest form.

Answers

Answer 1

Answer:

the correct answer is 21:4.

Step-by-step explanation:

the original ratio is 84:16 but you divide 84 by 4 and 16 by 4 and you get 21:4


Related Questions

SHOW STEPS!!

4.
x + 4y -- 67 = -1
2x - y + 2z = -7
-x + 2y -- 43 = 5

Answers

1.x+4y- - 67 =-1
x+4y+67=-1
x+4y=-1-67
X+4y=-68

2.2x-y+2z=-7
2x=-7+y-2z
x=-7/2+1/2y-z
x=-7/2+1/2y-z, y€R, z€R

Warning: I don’t have the € and R

3.-x+2y- -43=5
-x+2y+43=5
-x+2y=5-43
-x+2y=-38
x-2y=38

Hope this helps!
Please mark me brainliest if possible

The double of a number plus 12 is equal to its triple minus 5. What is the number? [tex]2x + 12 = 3x - 5[/tex] if I'm not wrong

Answers

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

17

»»————- ★ ————-««  

Here’s why:  

⸻⸻⸻⸻

[tex]\boxed{\text{Solving for 'x'...}}\\\\2x + 12 = 3x - 5\\--------------\\\rightarrow 2x + 12 - 12 = 3x - 5 - 12\\\\\rightarrow 2x = 3x -17 \\\\\rightarrow2x -3x = 3x-3x - 17\\\\\rightarrow -x = - 17\\\\\rightarrow \frac{-x=-17}{-1} \\\\\rightarrow \boxed{x = 17}[/tex]

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer part A and part B

Answers

Answer: Part A: a square pyramid Part B: 84 square feet

Step-by-step explanation:

Part A: The shape will have a base that is a square with triangles on each of its edges that connect at a point at the top.

Part B: The amount of nylon needed is the surface area of the net. There is a square and two triangles. The square has a side length of 6 so its area will be 6*6=36 square feet. Each triangle has a base of 6 and a height of 4 so each of their areas will be [tex]\frac{6*4}{2}=12[/tex] square feet. Adding up the area of the 4 triangles and the square gives us 4*12+36=84 square feet.

please help timed this time i actually added picture
which exponential function is represented by the values in the table​?

Answers

As x increases by 1 the value of f(x) doubles so we need 2^x
When x = 0 the value of f(x) = 3
The correct answer is f(x) = 3(2^x). [the top option]

What geometric sequence comes after25, 625,3125

Answers

Answer:

34567 shhzhznznjshshznuzhs

Step-by-step explanation:

the rule 2x×300p

The spinner below shows 10 equally sized slices. Lisa spun the dial 1000 times and got the following results.

Answers

Answer:

where are the results

Step-by-step explanation:

Simplify the following expression:

2x − 8y + 3x2 + 7y − 12x

Question options:

3x2 − 14x − y


3x2 − 10x − y


3x2 − 10x − 15y


3x2 + 10x − y

Answers

Answer:

2nd option

Step-by-step explanation:

Given

2x - 8y + 3x² + 7y - 12x ← collect like terms

= 3x² + (2x - 12x) + (- 8y + 7y)

= 3x² + (- 10x) + (- y)

= 3x² - 10x - y

please help it’s a ca!! will mark brainliest

Answers

Answer:

the first one: The coordinates of A' are (-2, 3)

and the last one: The coordinates of B' are (-2, 0) and the coordinates of C' are (2, -1).

Step-by-step explanation:

when you rotate a triangle counterclockwise by 90° you swap the numbers of the x and y coordinates.

like how the coordinates of B' were (0, 2) and became (-2,0) once the triangle was rotated.

The answer would be 1 and 4

What is the area of the square?
24 mm
288 square millimeters
96 square millimeters
312 pi square millimeters
576 square millimeters

Answers

Answer:

576 mm²

Step-by-step explanation:

In a square all sides are equal, so area of square = s * s = s²

Area = 24 * 24

Area = 576 mm²

Use partial products and the distributive property to calculate the product. Use paper to show your work.

​ 300\times 41.9300×41.9

Answers

Answer:

22054.36

Step-by-step explanation:


If (a, - 8) is a point on the graph of y=x + 6x, what is a?

Answers

First, [tex]y=7x[/tex] and when we plug in the point we get [tex]-8=7a\implies a=-\frac{8}{7}[/tex].

Hope this helps :)

Write an equation of the line passing through point P that is perpendicular to the given line:
P(6, 0) y=4

Answers

Answer:

x=6

Step-by-step explanation:

Answer:

Step-by-step explanation:

This is one of those things that will drive you insane until you understand the answer.

Every y value is 4 no matter what x is.

The perpendicular will meet y = 4 at the point (6,4)

Answer: So the equation has to be x = 6.

The blue line is y = 4

The red line is x = 6

The point of intersection is marked.

Helpppppppppppppppppppp

Answers

Step-by-step explanation:

could you write it clearly pls !!!

Answer:

s = 3/10

Step-by-step explanation:

-S - 5st =0

S = 3

t = -2

-3 - 5 (-2) s =0

10 s = 3

s = 3/10

Please help! Homework DUE TOMORROW!!!

Answers

number 10 would be C,D,E.

if f(x)=4x-5 what is the value of f(2)

Answers

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Value of Polynomial :

The value of a polynomial p(x) or f(x) at x = α is obtained by putting x = α in p(x) or f(x) and it is denoted by p(α) ...!

Required Solution :

Let f(x) = 4x - 5

⇒f(2) = 4(2) - 5

= 4 × 2 - 5

= 8 - 5

= 3

Hence, If f(x) = 4x-5 then the value of f(2) will be 3 ...!

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

Answer:

f(2) = 3

Step-by-step explanation:

f(x) = 4x-5f(2) = (4×2)-5f(2) = 8-5f(2) = 3

HOPE THIS HELPS YOU......

Solve each equation. Be sure to check for extraneous solutions 53=5|p-4|+8

Answers

53=5p+28
Got answer from the lord

9. The sum, Sn, of the first n terms of a geometric progression is given by Sn = 3" - 1.
(a) the sum of the first 8 terms. ​

Answers

[tex]\boxed{\sf S_n=3^n-1}[/tex]

Now

[tex]\\ \sf\longmapsto S_8=3^8-1[/tex]

[tex]\\ \sf\longmapsto S_8=6561-1[/tex]

[tex]\\ \sf\longmapsto S_8=6560[/tex]

Hello sir sir namaskar I just wanted to let him see the picture iiioiooin and his name on it all in

Spider-Man worked 0.75 hour on math, 0.675 hour on writing, and 0.25 hour each on science and social studies. How many hours did he work in all?

Answers

Answer:

1.675

Step-by-step explanation:

Answer:

The answer is spider man work 1.675 hours

Step-by-step explanation:

0.75+0.675+0.25=1.675

plz help me!!!!!!!!!!​

Answers

check solution. d) 22
e) 50, 130
f) 135, 15

How many integers have absolute value equal to 3

Answers

Answer:

There are 2 integers, which absolute value are 3. -3 and 3 itself

Step-by-step explanation:

|-3| = 3 and |3| = 3 to

Answer:

2 integers at a time will be able to have the same absolute value. This is because integer can be both positive and negative, while absolute value always remains positive:

The absolute value of both 2 and (-2) is 2.

Hanks pickup can travel 45 miles on 3 gallons of gas. How many gallons will Hanks pickup need to travel 30 miles?

Answers

2 gallons because 45/3=15 30/15=2

We have an algebra problem.

We will find that Hank's pickup needs 2 gallons of gas to travel 30 miles.

The information given is:

The pickup can travel 45 miles on 3 gallons of gas.

To find the number of miles that the pickup can travel per gallon of gas, we need to find the quotient between the amount that he travels (45 miles) and the amount of gas that he uses (3 gallons)

This is:

r = (45 miles)/(3 gallons) = 15 miles/gallon.

Now that we know this, the number of gallons needed to travel 30 miles is given by:

N = (30 miles)/(15 miles/gallon) = 2 gallons.

N = 2 gallons.

The pickup needs 2 gallons to travel 30 miles.

If you want to learn more, you can read:

https://brainly.com/question/926748

Evaluate 3x when x = -8.

Answers

x = -8

3x = 3 · (-8) = -24

.......

Is p(4p - 9) =12 or p(4p - 9) - 12 quadratic?

pls need help
From: Brainly.ph (philippines​)

Answers

Answer:

p(4p - 9) =12 ⇒ 4p² - 9p = 12 ⇒ 4p² - 9p - 12 = 0

This is a quadratic equation

p(4p - 9) - 12 ⇒ 4p² - 9p - 12

This is a quadratic expression

Step-by-step explanation:

p(4p-9)=124p²-9p=12

Since, it's one term has power 2 ,so it is quadratic

p(4p-9)-124p²-9p-12

Since, it's one term has power 2, so it is quadratic

A 100 ftladder leans against a building. When the angle of elevation of the ladder is 81 degrees, how high up the building will the ladder reach?

Answers

Answer:

I am not to sure but i think a.

Step-by-step explanation:

I really don’t know but I hope this helps

pls, help The temperature of a city changed by −24 degrees Celsius over a 6-week period. The temperature changed by the same amount each week.


Part A: Write an expression to show the average change in the temperature of the city each week. (5 points)


Part B: Simplify the expression and explain, using words, what your answer means. (5 points)

Answers

Answer:

Step-by-step explanation:

The change over 6 week period is -24 degrees Celcius.

A.  -24/6

B . So in average every week  the temperature change is -24/6 = -4 degrees Celcius

Find the inverse of the following


F(x)=-3/4x+6

Answers

Answer:

[tex] {f}^{ - 1} (x)= - \frac{4}{3} x + 8[/tex]

Step-by-step explanation:

[tex]f(x) = - \frac{3}{4} x + 6[/tex]

[tex]y = - \frac{3}{4} x + 6[/tex]

[tex]x = - \frac{3}{4} y + 6[/tex]

[tex] - \frac{3}{4} y + 6 = x[/tex]

[tex] - 3y + 24 = 4x[/tex]

[tex] - 3y = 4x - 24[/tex]

[tex]\boxed{\green{ {f}^{ - 1} (x)= - \frac{4}{3} x + 8}}[/tex]

Please help! What is |x-3|=9

Answers

Answer:

x = 12 or x = -6

Step-by-step explanation:

Solve for x over the integers:

abs(x - 3) = 9

Split the equation into two possible cases:

x - 3 = 9 or x - 3 = -9

Add 3 to both sides:

x = 12 or x - 3 = -9

Add 3 to both sides:

Answer: x = 12 or x = -6

Inga is playing poker with some friends.

Let p represent the statement "Inga has two aces in her hand." Let q represent the statement "Inga has a full house." [Note, a "full house" is a specific type of hand in the game of poker.]

Which symbolic form represents the English sentence "Inga has either two aces in her hand or she has a full house."?

Group of answer choices

Answers

Symbolic form involves using symbols to represent statements. The symbolic form of the given sentence is p v q

Given that:

[tex]p \to[/tex] "Inga has two aces in her hand."

[tex]q \to[/tex] "Inga has a full house."

The given sentence "Inga has either two aces in her hand or she has a full house." can be represented as:

Either p or q

In symbolic form, either/or is represented as: v

So, the representation of either p or q is: p v q

Read more about symbolic forms at:

https://brainly.com/question/17042406

evaluate the expression c[tex]a^{2}[/tex]+a
for a=5 and c=-2

Answers

ca^2+a

= -2×5^2+5

= -2×25+5

= -50+5

= -45....

(please help!)
Add −1.25+2.5

Plot the first addend and the sum on the number.

Answers

Answer:

the answer of this question is 1.25

-1.25+2.5 = 1.25.
___
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