All categories

2 years ago

Samantha has 42 coins consisting of quarters and nickels, which total $5.70. How many of each does she have?

Mathematics

2 answers:

Marizza181 [45]2 years ago

6 0

Thank you good luck took quiz got it correct

Effectus [21]2 years ago

3 0

Answer- 22 quarters and 4 nickels

Step-by-step explanation: their is a lot of ways to go about this this is just the way I splited this up;)

You might be interested in

Westfalls is 7 miles south of edenville and Concord is 13 mile west of westfalls. What is the distance from edenville to Concord

Lelu [443]

Answer:

$D_x\approx14.8mile$

Step-by-step explanation:

From the question we are told that

Distance between Edenville and Westfalls $D_1=7$

Distance between Westfalls and Concord $D_2=13$

Generally the equation for Pythagoras is mathematically given by

$D_x^2=D_1^2+D_2^2$

$D_x^2=7^2+13^2$

$D_x=\sqrt{ 7^2+13^2}$

$D_x=14.76482306mile$

The distance b/w Edenville to Concord is

$D_x\approx14.8mile$

6 0

3 years ago

Use the drop-down menus to choose steps in order to solve 5m - 8 = 3m + 8 for m.

frutty [35]

Answer:

m = 8

Step-by-step explanation:

5m - 8 = 3m + 8

-3m -3m

2m - 8 = 8

+ 8 + 8

2m = 16

/2 /2

m = 8

Hope this helps!

8 0

3 years ago

Read 2 more answers

2-85. Ling wants to save $87 for tickets to a rock concert. If she has $23 now and will save $4 per week, how long will it take

Anvisha [2.4K]

Answer: 16 and a half weeks so maybe put 16

that's the answer because she will save $4 per week 4 x 16 is 86 to 87

that's why i say and a half because it not exactly 87 its 86 so 16 and a half

7 0

3 years ago

Read 2 more answers

Consider the surface f (x comma y comma z )f(x,y,z)equals=negative 2 x squared plus 2 y squared minus 3 z squared plus 3 equals

trapecia [35]

Answer:

a) (8,8,-6)

b) 4x+4y+3z = -3

Step-by-step explanation:

The surface is given by the equation

f(x,y,z) = 0 where

$f(x,y,z)=-2x^2+2y^2-3z^2+3$

The gradient of this function is the vector

$(\frac{\partial f}{\partial x},\frac{\partial f}{\partial y},\frac{\partial f}{\partial z})=(-4x,4y,-6z)$

If we evaluate it in the point P = (-2,2,1) we obtain the point

(8,8,-6)

The vectors with their tails at P are of the form

(-2,2,1)-(x,y,z) = (-2-x, 2-y, 1-z)

as they must be orthogonal to the gradient, they must be orthogonal to the vector (8,8,6) so their inner product is 0

$(-2-x,2-y,1-z)\cdot(8,8,6)=0\Rightarrow -16-8x+16-8y+6-6z=0\Rightarrow 4x+4y+3z=-3$

and the equation of the desired plane is

4x+4y+3z = -3

3 0

4 years ago

(1,6) and (9,14) standard form

Talja [164]

Answer:

(14y+6y)+(9x+1x)

Step-by-step explanation:

7 0

3 years ago