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2 years ago

Irina ran 0.25 mile in 2 minutes. At this rate, how many minutes will it take her to run 2 miles?

Mathematics

2 answers:

Taya2010 [7]2 years ago

5 0

I think the answer is 16. Don’t get stressed!!
........

scoray [572]2 years ago

4 0

Answer:

Step-by-step explanation:

2/0.25 = 8

2 x 8 = 16

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Aaron’s boat travels 9 mile per hour in still water. The speed of the river is 4 miles per hour. How long will it take Aaron to

ella [17]

Answer:

who will answer??

Step-by-step explanation:

7 0

2 years ago

Which linear equation best describes the relationship between x and y?

Sergio [31]

Slope = 2/3
y = mx + b
6 = 2/3(3) + b so b = 4

equation
y = 2/3x + 4
3y = 2x + 12

answer is c.3y = 2x + 12

6 0

2 years ago

How do you simplify this? x²y+xy² / y²+2/5 × xy

polet [3.4K]

$\huge \boxed{\mathbb{QUESTION} \downarrow}$

How do you simplify this?
x²y+xy² / y²+2/5 × xy

$\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}$

$\sf\frac{ { x }^{ 2 } y+x { y }^{ 2 } }{ { y }^{ 2 } + \frac{ 2 }{ 5 } \times xy } \\$

Factor the expressions that are not already factored.

_____

How to factorise :-

NUMERATOR $\downarrow$

$\sf \: x ^ { 2 } y + x y ^ { 2 }$

Factor out xy.

$\sf \: xy\left(x+y\right)$

DENOMINATOR $\downarrow$

$\sf{ y }^{ 2 } + \frac{ 2 }{ 5 } \times xy \\$

Factor out 1/5.

$\sf \: {\frac{1}{5}y\left(2x+5y\right)} \\$

_____

Continuing...

$\sf\frac{xy\left(x+y\right)}{\frac{1}{5}y\left(2x+5y\right)} \\$

Cancel out y in both the numerator and denominator.

$\sf\frac{x\left(x+y\right)}{\frac{1}{5}\left(2x+5y\right)} \\$

Expand the expression.

$\sf\frac{x^{2}+xy}{\frac{2}{5}x+y} \\$

This can further simplified to as $\downarrow$

$= \boxed{\boxed{\bf\frac{5x\left(x +y\right)}{2x+5y}}}$

3 0

2 years ago

The set of points P(0, 3), Q(2, 0), R(4, -3) are collinear and the line has a slope of _____.

vampirchik [111]

Answer:

slope = -1.5

Step-by-step explanation:

A set of three or more points are said to be collinear if they all lie on the same straight line.

We have been given the following collinear set of points;

P(0, 3), Q(2, 0), R(4, -3)

This implies that P, Q, and R lie on the same line.

The slope of a line is defined as; (change in y)/(change in x)

Using the points P and Q, the slope of the line is calculated as;

(0-3)/(2-0) = -3/2 = -1.5

7 0

2 years ago

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Solve the system of equations.

kotegsom [21]

Y = 2.
x = 0?
i believe I am correct about x but I am not sure.

4 0

3 years ago

Read 2 more answers