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3 years ago

Which expression best represents the difference between triple a number and double a number?

2 answers:

6 0

Let x be the number. With this representation, double this number is 2x and thrice is 3x. We are asked to give an expression for the difference (subtraction) of these numbers, the answer to this question should be,
3x - 2x

MA_775_DIABLO [31]3 years ago

4 0

Answer:

so its mostly if your taking the test in usatest prep it would be 3x -2x

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By car, John traveled from city A to city B in 3 hours. At a rate that was 20 mph

alex41 [277]

60 miles because (20mph)((3hrs) = 60

8 0

2 years ago

Read 2 more answers

The girls and boys' basketball teams sponsored a car wash that made $109. There were twice as many girls as

V125BC [204]

Answer:

Boys - 36$ 33 cents

Girls - 72$ 67 cents

Step-by-step explanation:

Boys x

Girls 2x

Total 109

2x+x=109

3x=109/:3

X=36,3333

Boys x =36$ 33c

Girls 2x= 72,666= 72$ 67c

7 0

2 years ago

What is the slope of the line that

Naily [24]

Answer:

The line has a slope of zero which means the line is a horizontal line.

Step-by-step explanation:

Given that:

The two points are (-3,2) and (4,2)

Slope of a line is given by the formula,

$m = \frac{Rise}{Run} = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

Here,

$x_{1}=-3,\ y_{1}=2\\x_{2}=4,\ y_{2}=2$

Putting these values in formula;

$m=\frac{2-2}{4-(-3)} \\m = \frac{0}{4+3}\\m = \frac{0}{7} = 0$

Hence,

The line has a slope of zero which means the line is a horizontal line.

4 0

2 years ago

A ball is thrown directly up in the air from a height of 5 feet with an initial velocity of 60 ft/s. Ignoring air resistance, ho

Mice21 [21]

Answer:

3.8 seconds

Step-by-step explanation:

Given equation

$h= -16t^2 + 60t + 5$

When the ball hits the ground then height is 0

So we replace h with 0 and solve for t

$0= -16t^2 + 60t + 5$

a= -16 , b= 60 and c= 5

Apply quadratic formula to solve for t

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

= $\frac{-60+\sqrt{60^2-4\left(-16\right)\cdot \:5}}{2\left(-16\right)}[/tex[tex]=\frac{-60+-\sqrt{3920}}{-32}$

$=\frac{-60+-28\sqrt{5}}{-32}$

$=\frac{4(-15+-7\sqrt{5})}{-32}$

$=\frac{(-15+-7\sqrt{5})}{-8}$

Now make two fractions and solve for x

t= $-\frac{7\sqrt{5}-15}{8}$ =-0.0815

t= $\frac{7\sqrt{5}+15}{8}$ =3.83

So answer is 3.8 seconds

4 0

2 years ago

Which expression is equivalent to 5x + 5y + 5y?

Butoxors [25]

Answer:

5x + 10y

Step-by-step explanation:

5x + 5y + 5y = 5x + 10y

6 0

3 years ago

Read 2 more answers