2x^3/3y equivalent expressions

a highway measures 58 and 1/2 miles long. There will be a speed limit sign posted every two one six miles. How many speed limit

Solnce55 [7]

a highway measures 58 and 1/2 miles long.there be a speed limit sign posted every two one six miles.How many speed limit signs Will be on the highway 

(C):29 .signs

4 0

3 years ago

Jan and Wayne went to the store to buy some groceries. Jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef fo

yulyashka [42]

Answer:

The system of equations that models the problem is:

$\left \{ {{2*H+3*C=4.95} \atop {3*H+2*C=5.45}} \right.$

Step-by-step explanation:

A system of equations is a set of two or more equations with several unknowns in which we want to find a common solution. So, a system of linear equations is a set of (linear) equations that have more than one unknown that appear in several of the equations. The equations relate these variables or unknowns to each other.

In this case, the unknown variables are:

H: price of a can of corn beef hash
C: price of a can of creamed chipped beef

Knowing the unit price of a product, the price of a certain quantity of that product is calculated by multiplying that quantity by the unit price. So the price for 2 cans of ground beef hash can be calculated as 2 * H and the price for 3 cans of ground beef with cream can be calculated as 3 * C. Jan paid $ 4.95 for those amounts from both cans. This means that the sum of the can prices must be $ 4.95. So: 2*H + 3*C= 4.95 Equation (A)

Thinking similarly, if Wayne bought 3 cans of corn beef hash and 2 cans of creamed chipped beef for $5.45, Wayne's buy can be expressed by the equation:

3*H + 2*C= 5.45 Equation (B)

Finally, the system of equations that models the problem is:

$\left \{ {{2*H+3*C=4.95} \atop {3*H+2*C=5.45}} \right.$

7 0

3 years ago

Assume X and Y are independent random variables with the following distributions:

allsm [11]

Answer:

Step-by-step explanation:

Given that X and Y are independent random variables with the following distributions:

x -1 10 1 2 Total

p 0.3 0.1 0.5 0.1 1

xp -0.3 1 0.5 0.2 1.4

x^2p 0.3 10 0.5 0.4 11.2

Mean of X = 1.4

Var(x) = 11.2-1.4^2 = 9.24

y 2 3 5

p 0.6 0.3 0.1 1

yp 1.2 0.9 0.5 0 2.6

y^2p 2.4 2.7 2.5 0 7.6

Mean of Y = 2.6

Var(Y) = 11.2-1.4^2 = 0.84

3) W=3+2x

Mean of w =3+2*Mean of x = 7.2

Var (w) = 0+2^2 Var(x)= 36.96

8 0

4 years ago

Emery Drives 50 miles in one hour how many miles does he drive in 2.5 miles?

aivan3 [116]

I think you meant 2.5 HOURS.
If so, 125

6 0

3 years ago

Read 2 more answers

Please help with give brainlist(please with evidence too)

Luda [366]

Answer:

4^1

Step-by-step explanation:

10^0 = 1 ( By Zero exponent property)

4^1 = 4

1×10^0 = 1×1 = 1

1^4 = 1×1×1×1 = 1

7 0

2 years ago