All categories

2 years ago

Solve 7y − 13 ≤ -2y + 12 for y.

Mathematics

2 answers:

Fittoniya [83]2 years ago

8 0

Answer:

Work shown below!

Step-by-step explanation:

7y - 13 ≤ -2y + 12

Add 2y to both sides;

9y - 13 ≤ 12

Add 13 to both sides;

9y ≤ 25

Divide both sides by 9;

y ≤ $\frac{25}{9}$

nekit [7.7K]2 years ago

5 0

Answer:

y =/> 25/9

Step-by-step explanation:

move variables to one side and non variables to the other side

You might be interested in

a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks

Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

The third side of a triangle can be found when we know two sides and the angle between them

$c^2 = a^2 + b^2 - 2ab\ cos c$

Here, angle between 90 meters and 130 meters is 65 degrees

From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

Thus, the distance between two landmarks is 123 meters

8 0

3 years ago

The scale factor of the dimensions of two similar wood floors is 4:3. It costs $207 to refinish the smaller wood floor. At that

Crank

Answer:

$276

Step-by-step explanation:

Create a proportion where x is the cost to refinish the larger wood floor:

$\frac{4}{3}$ = $\frac{x}{207}$

Cross multiply and solve for x:

3x = 828

x = 276

So, to refinish the larger wood floor, it would cost $276

6 0

2 years ago

Can someone please help me out asap? thank you

harkovskaia [24]

Answer:

A,B, and C

Step-by-step explanation:

All of the answers are correct besides D, none of the above

5 0

2 years ago

Read 2 more answers

Determine if the triangles, ΔSXC and ΔDXY, are similar. If so, identify the similarity criterion.

Lesechka [4]

THE ANSWER IS B SAS SIMILARITY

3 0

3 years ago

Read 2 more answers

What is 1.86 divided by 0.15 and why?

ch4aika [34]

Answer:

The answer is 12.4

Step-by-step explanation:

Because it is this way.

4 0

2 years ago