Ask question

Ask question

All categories

3 years ago

8

Three times than five times a number

1 answer:

Reil [10]3 years ago

4 0

Answer:

15

Step-by-step explanation:

You might be interested in

V= u + at<br> u= 2<br> a = -5<br> t = 1 글<br> Work out the value of v.

Maksim231197 [3]

Answer:

v = - 3

Step-by-step explanation:

Given

v = u + at ← substitute u = 2, a = - 5, t = 1 into the expression

v = 2 + (- 5 × 1) = 2 + (- 5) = 2 - 5 = - 3

5 0

3 years ago

clinton purchased a circular rug to cover part of a floor. The diameter of the rug is 8 feet. rounded to the nearest whole numbe

Ahat [919]

The area of the rug will be 16π

4 0

3 years ago

Read 2 more answers

Which inequality can Josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket?

MissTica

Answer:

3.5x + 15 ≥ 55

Step-by-step explanation:

I think the question below contains the missing information.

<em>Josh has a rewards card for a movie theater. - He receives 15 points for becoming a rewards card holder. - He earns 3.5 points for each visit to the movie theatre. - He needs at least 55 points to earn a free movie ticket. Which inequality can Josh use to determine x, the minimum number of visits he needs to earn his firs free movie ticket? </em>

My answer:

Becoming a member = 15 points

Visiting the moving theater = 3.5 points

Total points needed for a free movie ticket = 55

Let x is the number of times he visits = 3.5x

Total points = Points received on becoming a member + Points received on x visits

So,

Total Points = 15 + 3.5x

We know the total points must be at least 55 for a free movie ticket. This can be expressed as:

3.5x + 15 ≥ 55

6 0

3 years ago

Use the completing the square method to find the roots of 2x^2+3x-15=13 include the steps, it would be greatly appreciated thank

Monica [59]

Answer:

The roots are

$x1= \frac{-3+\sqrt{233}}{4}$

$x2= \frac{-3-\sqrt{233}}{4}$

Step-by-step explanation:

we have

$2x^{2}+3x-15=13$

so

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$2x^{2}+3x=13+15$

$2x^{2}+3x=28$

Factor the leading coefficient

$2(x^{2}+(3/2)x)=28$

Complete the square. Remember to balance the equation by adding the same constants to each side

$2(x^{2}+(3/2)x+(9/16))=28+(9/8)$

$2(x^{2}+(3/2)x+(9/16))=233/8$

$(x^{2}+(3/2)x+(9/16))=233/16$

Rewrite as perfect squares

$(x+(3/4))^{2}=233/16$

square root both sides

$(x+\frac{3}{4})=(+/-)\sqrt{\frac{233}{16}}\\ \\(x+\frac{3}{4})=(+/-)\frac{\sqrt{233}}{4}\\ \\x= -\frac{3}{4}(+/-)\frac{\sqrt{233}}{4}$

$x1= -\frac{3}{4}(+)\frac{\sqrt{233}}{4}=\frac{-3+\sqrt{233}}{4}$

$x2= -\frac{3}{4}(-)\frac{\sqrt{233}}{4}=\frac{-3-\sqrt{233}}{4}$

7 0

3 years ago

Find the equation of a line given the slope is 2 and Contains the point (0,0).

strojnjashka [21]

Answer:

y=2x

Step-by-step explanation:

y=mx+b

If it crosses through the point (0,0) it means that the y intercept (b) is 0.

m=slope

Not sure how to show you the graph but it is simply a diagonal line through (0,0) that will hit (1,2), (2,4), etc.

5 0

3 years ago

Read 2 more answers