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4 years ago

Can someone help me with 1-3 please

Mathematics

1 answer:

Marina86 [1]4 years ago

7 0

Answer: -2

Step-by-step explanation: So we are working with positive and negative numbers. Since you can not take 3 from 1, you get -2. Since if you flip it the answer would be two! That will answer your question! "{I hope!}

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Danny charges $35 for 3 hours of swimming lessons.Martin charges $24 for 2 hours of swimming lessons.Who offeres a better deal?

I am Lyosha [343]

35/3 = 11.6/hr

24/2 = 12/hr

Danny has a slightly better deal

8 0

3 years ago

BROOO HELP what is the slope of the line through (-3,3) and (-1,-1)?

lesya [120]

Answer:

Step-by-step explanation:

To find the slope between any two points, we can use the slope formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Where (x₁, y₁) and (x₂, y₂) are two, separate points.

We have the two points (-3, 3) and (-1, -1).

So, let (-3, 3) be (x₁, y₁) and let (-1, -1) be (x₂, y₂).

Substitute them into the slope formula to get:

$m=\frac{-1-3}{-1-(-3)}$

Subtract:

$m=\frac{-4}{2}=-2$

Hence, our slope is -2.

So, our answer is C.

6 0

3 years ago

Read 2 more answers

On a three-day hike, Matthew hiked twice as many miles on the first day as on the second day. On the third day he hiked 5 miles.

Olenka [21]

Day One- 2d (d being Day Two)
Day Two- d
Day Three- 5 miles

So the expression would be:

5 + 2d + d

Now, we add together the like terms.

5 + 3d

Hope this helps!

3 0

4 years ago

Read 2 more answers

Find COS

ehidna [41]

$\frac{9}{41}$

Step-by-step explanation:

The ratio cosine tell us that

In a right angled triangle, the cosine of an angle is the side adjacent to the angle divided by the hypotenuse of the triangle.

In other words,

$\cos(x) = \frac{adj}{hyp}$

The side adjacent to angle a is 9. The hypotenuse is 41.

$\cos(a) = \frac{9}{41}$

6 0

3 years ago

There are three numbers: x, y, and z. The sum of these three numbers is 24. The second number is five times the first number. Th

dimulka [17.4K]

The three numbers are x, y, z
The sum of the three numbers = x + y + z = 24

Let the first number = x
The second number is five times the first number = y = (x + 5)
The third number is twice as much as the second number = z = 2y = 2(x + 5)

The sum of these numbers = 24
x + y + z = 24

Substituting the values of y and z in terms of x

x + (x + 5) + 2(x + 5) = 24
x + x + 5 + 2x + 10 = 24
4x + 15 = 24
4x = 24 - 15
4x = 9
x = 9 ÷ 4
x = 2.25

Therefore,
x = 2.25
y = (x + 5) = 2.25 + 5 = 7.25
z = 2(x + 5) = 2(2.25 + 5) = 2 x 7.25 = 14.5

Sum of the three numbers = x + y + z = 2.25 + 7.25 + 14.5 = 24

5 0

4 years ago