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2 years ago

3) Two cars leave Cincinnati at the same time. Car A moves East at a constant speed of 60 miles per hour, while car B

Mathematics

1 answer:

Inessa [10]2 years ago

4 0

Answer:

D). 262.5 miles.

Step-by-step explanation:

The speed at which they are drawing apart = 60 + 45 = 105 mph.

So in 2.5 hours they wiil be

2.5 * 105

= 210 + 52.5

= 262.5 miles.

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Solve the system by substitution.

kirill [66]

<h2>Answer:</h2>

x = 1

y = 1

<h3>Step-by-step explanation:</h3>

$y=-3x+4\\ y=x$

Substitute into one of the equations

$-3x+4=x$

Rearrange variables to the left sider of the equation

$-3x-x=-4$

Combine like terms

$-4x=-4$

Divide both sides of the equation by the coefficient of variable

$x=\frac{-4}{-4}$

Determine the sign for multiplication or division

$x=\frac{4}{4}$

Cross out the common factor

$x=1$

Substitute into one of the equations

$y=1$

The solution of the system is

$\left \{ {{x=1} \atop {y=1}} \right.$

<em>I hope this helps you</em>

8 0

2 years ago

Write 4.7 as a mixed number with a fraction in simplest form

andrezito [222]

Answer:

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there is

number to the right of the decimal point, place the decimal number over

(

)

. Next, add the whole number to the left of the decimal.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A bag holds 5.8lb of corn. How many pounds do 2.5 bags hold

gayaneshka [121]

ANSWER:

14.5 pounds

STEP-BY-STEP EXPLANATION:

We know the capacity of each bag, therefore, we can calculate the capacity of 2.5 bags, multiplying by the capacity of one, like this:

$\begin{gathered} c=5.8\cdot2.5 \\ \\ c=14.5\text{ lb} \end{gathered}$

Which means 2.5 bags contain a total of 14.5 lbs.

3 0

1 year ago

The graph of this quadratic function is a parabola. What is the x-coordinate of the vertex? y = x^2 - 3

Studentka2010 [4]

$\bf y = x^2 - 3\implies y=1x^2+0x-3\qquad now
\\\\\\
\textit{vertex of a parabola}\\ \\
\begin{array}{llccll}
y=&1x^2&+0x&-3\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)$

so, the x-coordinate is $\bf -\cfrac{{{ b}}}{2{{ a}}}$

5 0

3 years ago

2) At the animal shelter 4/6 of the animals are cats. Of the cats 1/2 are male. What fraction of the animals at the shelter are

dezoksy [38]

Answer:

1/3 of the animals at the shelter are male cats.

Step-by-step explanation:

(4/6)*(1/2)=(4/12) or (1/3)

4 0

3 years ago