All categories

2 years ago

Geoff charges 27$ for 3 hours of swimming lessons

Mathematics

2 answers:

Aleks [24]2 years ago

8 0

Answer:

$9 per hour

Step-by-step explanation:

igor_vitrenko [27]2 years ago

6 0

Answer: 27/3=9 which means 9$ per hour

32/4=8 which means 8$ per hour

Step-by-step explanation:

Answers is annie deal is the best

You might be interested in

Select the two values of x that are roots of this equation. 2x+11x+15= 0

Amiraneli [1.4K]

Answer:

The roots of the equation are x=-3 and x=-2.5

Step-by-step explanation:

The correct quadratic equation is

2x^2+11x+15=0

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$2x^{2} +11x+15=0$

$a=2\\b=11\\c=15$

substitute in the formula

$x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}$

$x=\frac{-11(+/-)\sqrt{121-120}} {4}$

$x=\frac{-11(+/-)\sqrt{1}} {4}$

$x=\frac{-11(+/-)1} {4}$

$x_1=\frac{-11(+)1}{4}=-2.5$

$x_2=\frac{-11(-)1}{4}=-3$

therefore

The roots of the equation are x=-3 and x=-2.5

5 0

3 years ago

there is a ratio of 5 girls to 3 boys in the chorus.there are 24 boys in the chorus.how many girls are there

pshichka [43]

I think that the answer to this is 40 girls

24/3=8

8*5=40

hope this helps

3 0

3 years ago

Please help!! I need to go to the next question!

tino4ka555 [31]

Given:

The inequality is:

$3t+1\leq 5$

To find:

The graph of the given inequality.

Solution:

We have,

$3t+1\leq 5$

Subtract both sides by 1.

$3t\leq 5-1$

$3t\leq 4$

Divide both sides by 3.

$t\leq \dfrac{4}{3}$

The value of t is less than or equal to $\dfrac{4}{3}$ .

Since $t\leq \dfrac{4}{3}$ , it means $\dfrac{4}{3}$ is included in the solution, therefore there is a closed circle at $t=\dfrac{4}{3}$ and an arrow approaches to left from $t=\dfrac{4}{3}$ .

Therefore, the correct option is A.

5 0

3 years ago

23q−34) and (−16q−r)

faltersainse [42]

Answer:

r = 7 q - 34

Step-by-step explanation:

Solve for r:

-34 + 7 q - r = 0

Subtract 7 q - 34 from both sides:

-r = 34 - 7 q

Multiply both sides by -1:

Answer: r = 7 q - 34

7 0

3 years ago

Read 2 more answers

I need help with a math problem

soldi70 [24.7K]

Answer:

19,680

Step-by-step explanation:

1 lb = 16 ounces

1230 lb = 1230 * 16 ounces = 19,680 ounces

5 0

3 years ago