Craig has 80 cents in nickels (n) and dimes (d). He has four more nickels than dimes.
Write a system of equations that models the situation.
Solve the system of equations using any method.
PLEASE I NEED HELP!!!!

Answer: 5D = T

Step-by-step explanation:

A dollar spent will give 5 tokens.

The amount of dollars spent therefore will increase the number of tokens you by fivefold.

Formula is therefore:

5D = T

Testing it.

Assume you spent 5 dollars, how many tokens would you have:

5D = T

5 * 5 = 25 tokens

Answer:

4(6+d)

Step-by-step explanation:

Answer:

The answer is 4x

Step-by-step explanation:

Simpify

1. Combine like terms

2. Solution

THIS IS A 5 POINTS QUESTIONS!

Answer:

4x

Step-by-step explanation:

cus if you put 4x it wouldn't solve

5x-x+7=4x+2

5x-x-4x+7=2

7=2 that is wrong so the answer is 4x

Answer:

187

Step-by-step explanation:

0.75x=165 x=220

220*0.85

Answer:

a

protons, neutrons

Step-by-step explanation:

An atom's mass is determined by the number of protons and neutrons in the atom's nucleus.

Answer:

64x^2/3x^5/4

Step-by-step explanation:

(4x^2/3)^3 / (81x^5)^1/4​

4^3*x^2/3*3 / 3^4*1/4*x^5/4

64*x^2 / 3*x^5/4

Answer:

2

Step-by-step explanation:

Answer:

m (slope) = 664

Step-by-step explanation:

Formula:

m (slope) = y1-y2/x1-x2

m = 16570 - 21226 / 1982 - 1986

= -4,656 / -4

= 664

Answer:

A 3, 4 and 5

Step-by-step explanation:

Answer:

6s

Step-by-step explanation:

Answer:

320 pesos

Step-by-step explanation:

Un 20% de descuento en formato decimal es 0.20. La totalidad de la bicicleta es representada como 100% o 1 y nosotros queremos saber el precio despues del descuento que seria

100% - 20% = 80% o 0.80

Ahora simplemente multiplicamos este decimal por el valor original de la bicicleta para saber el precio descontado...

400 * 0.80 = 320 pesos

Answer:

2,400

Step-by-step explanation:

2,389 rounded to the nearest hundred is 2,400

Answer:(-8,-4)

Step-by-step explanation:

Answer:

28+8=24

61=12-6

Step-by-step explanation:

Subtract 8 from both sides of the equation.

2x+8=24

2x+8-8=24-8

Simplify

2x=16

Divide both side of the equation by the same term

2x/2 16/2

Simplify

x=8

Subtract the numbers

6x=12-6

6x=6

Divide both side of the equation by the same term

6x/6 6/6

Simplify

x=1

hope it helps took a long time to do lols

Answer:

Subtract 8 from both sides of the equation.

2x+8=24

2x+8-8=24-8

Simplify

2x=16

Divide both side of the equation by the same term

2x/2 16/2

Simplify

x=8

Step-by-step explanation:

Sorry I can't aNswer well

Answer:

1. $8.77

2. 498.456

Step-by-step explanation:

Answer:6

Step-by-step explanation:solve the equation, you know that it equals 90 because the angle is 90

so 16x-6=90

+6 both sides

16x=96

divided by 16 both sides to isolate x

x=6

Answer:

87.72%

Step-by-step explanation:

What is the fraction (ratio) 50/57 as a percent value?

49/57 = ? ... 51/57 = ?

Detailed calculations below:

Introduction. Fractions

A fraction consists of two numbers and a fraction bar:

50/57

The number above the bar is the numerator: 50

The number below the bar is the denominator: 57

Divide the numerator by the denominator to get fraction's value:

Val = 50 ÷ 57

Introduction. Percent, p%

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% = p/100 = p ÷ 100.

Calculate fraction's value.

Divide the numerator by the denominator to get fraction's value:

50/57 =

50 ÷ 57 ≈

0.87719298245614

Note:

100/100 = 100 ÷ 100 = 100% = 1

Multiply a number by the fraction 100/100,

... and its value doesn't change.

Calculate the percent value:

0.87719298245614 =

0.87719298245614 × 100/100 =

(0.87719298245614 × 100)/100 =

87.719298245614/100 =

87.719298245614% ≈

87.72%;

In other words:

1) Calculate fraction's value.

2) Multiply that number by 100.

3) Add the percent sign % to it.

Answer:

:: written in two ways ::

Not rounded:

50/57 = 87.719298245614%

Rounded to maximum 2 decimals:

50/57 ≈ 87.72%

Signs: % percent, ÷ divide, × multiply, = equal, / fraction bar (division bar), ≈ approximately equal;

Writing numbers: comma ',' as thousands separator; point '.' as a decimal mark;

More operations of this kind:

49/57 = ? ... 51/57 = ?

hi I am interested for your answers but I can't find 5x-3 in my profile as my number and I am currently in my second week and simplify days of my contract for my current role

the following 3x are some numbers for you and your answers will not care for you and your answers to all of the boxes in my number of days

Answer:

p+5n≤0

Step-by-step explanation:

i just took it

Answer:

x=2

y=3

Explanation

1. Solve x + 2y = 8 for x:

x + 2y = 8

x+2y + − 2y = 8 + −2y(Add -2y to both sides)

x = −2y + 8

2. Substitute −2y + 8 for "x" in 5x − 2y =4

5x − 2y = 4

5 (−2y + 8) − 2y =4

−12y + 40 = 4 (Simplify both sides of the equation)

−12y + 40 + −40 = 4 + −40(Add -40 to both sides)

−12y = −36 (Divide both sides by -12)

y = 3

3. Substitute 3 for "y" in x= −2y + 8

x = −2y + 8

x = (−2) (3) + 8

x = 2 (Simplify both sides of the equation)

Answer:

x = 2 and y = 3

Answer:

2.28%

Step-by-step explanation:

mean = 5 years = 60 months

standard deviation = 6 months

X = number of years the tires will last

P = probability of ...

z = z-score

6 years = 72 months

z = (# of months - mean) / standard deviation

z = (72 - 60)/6

z = 12/6

z = 2

P(X > 72) = 1 - P(X < 72)

= 1 - P(z < 2)    

(using a Standard Normal Probabilities Table we can see that P(z < 2) = .9772)

So:

= 1 - .9772

= 0.0228 OR 2.28%

Answer:

The range of the equation is y ≥ 9 ⇒ C

Step-by-step explanation:

The quadratic equation y = ax² + bx + c, represents by a parabola of vertex (h, k), where h = [tex]\frac{-b}{2a}[/tex] and k is the value of y at x = h

∵ The equation is y = x² + 9

→ Compare it with the form above to find a and b

∴ a = 1 and b = 0

∵ a is a positive number

∴ The parabola has a minimum vertex

→ By using the 1st rule above

∴ The range is y ≥ k

→ Use the rule of h above to find it

∵ h = [tex]\frac{-(0)}{2(1)}[/tex] = [tex]\frac{0}{2}[/tex]

∴ h = 0

→ To find k substitute x by the value of h and y by k

∵ k = (0)² + 9

∴ k = 0 + 9

∴ k = 9

∴ The range of the equation is y ≥ 9