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3 years ago

Which ordered pair is the best estimate for the solution of this system of linear equations?

Mathematics

2 answers:

nadezda [96]3 years ago

8 0

Answer:

B. (-3, 2)

Step-by-step explanation:

Bad White [126]3 years ago

6 0

Answer:

B (-3, 2)

Step-by-step explanation:

Systems of equations have a common solution where the plot lines intersect.

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Twenty five students are in a class. Each student will have one half of a sandwich for a snack. Each sandwich is made with two s

OLEGan [10]

25 slices of bread needed for each student to have one half of a sandwich for a snack

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3 years ago

Complete the statement below to explain how this model shows that 1/2 ÷ 2/3 = 3/4.

Sindrei [870]

Given a model in which some boxes are given.

Here, 1/2 is represented by 3 boxes and 2/3 is represented by 4 boxes. Thus, the model represents that 3/4 of 2/3 bar is equal to 1/2.

So, the mathematical representation of the model is:

$\frac{1}{2}=\frac{3}{4}\times\frac{2}{3}$

If we divide both the sides by 2/3, we get:

$\begin{gathered} \frac{1}{2}\div\frac{2}{3}=\frac{3}{4}\times\frac{2}{3}\div\frac{2}{3} \\ \frac{1}{2}\div\frac{2}{3}=\frac{3}{4} \end{gathered}$

3 0

1 year ago

Laura bought 23 pounds of sugar for $12. How many dollars did she pay per pound of sugar?

Vikki [24]

Answer:

≈ $0.52 per pound

Step-by-step explanation:

12/23 ≈ $0.52

6 0

3 years ago

A store owner who bought comforters for x dollars is marking them up 60%. Write two expressions that represent the selling price

velikii [3]

Answer:

$(1+\frac{60}{100})x$

and

$(1+0.6)x$

Step-by-step explanation:

The cost price is $x$ dollars.

The marked up price $\frac{60}{100} x$

The selling price is $x+\frac{60x}{100}$

This is the same as $(1+\frac{60}{100})x$

This can again be written as $(1+0.6)x$

All this are equivalent because $1.6x$

7 0

3 years ago

The total cost of a vase of spring flowers at a flower shop depends on the number of flowers ordered. Each flower costs $2.50. W

Andrews [41]

Answer:

D. y=2.50x

Step-by-step explanation:

Since the equation asks for the total cost of a vase of flowers (y) that goes on the left side. Each flower costs 2.50 and the flower shop depends on the number of flowers ordered, which makes it a variable. Therefore C is wrong because it has 2.50 as a constant.

The ending equation will be y = 2.50x

Written in context this means that the total cost of a vase of flowers is equal to the cost of each flower (2.50) by how many flowers are ordered.

I hope this helps!!

- Kay :)

7 0

3 years ago