4 years ago

I need help on this question

Mathematics

2 answers:

umka21 [38]4 years ago

8 0

5X*5=15
divide everything by 5
x=3

Dima020 [189]4 years ago

4 0

I think the answer is 10 i am not sure

You might be interested in

Which expression is equivalent to the expression shown below? --8x – 2(5 + 4x)

Mnenie [13.5K]

-8x-2(5+4x)

Step-by-step explanation:

-8x-10-8x -8x-8x-10 -16x-10

6 0

3 years ago

Solve the system of equations 2x + y = -1.5 y = 3.50 + 15

lukranit [14]

So first y = 3.50 + 15 = 18.5
Next 2x + y = -1.5
2x = -1.5 -y
2x = -1.5 - 18.5 = -20
x = -20/2 = -10
So
x = -10
y = 18.5

6 0

3 years ago

Write an expression that equals to 100 and only uses the number 3. You can use exponents and parentheses but the exponent must e

Liono4ka [1.6K]

33+33+3^0 = 100
(in case you didnt know the third one is three to the power of 0)

8 0

3 years ago

(05.06 LC)The net of an isosceles triangular prism is shown. What is the surface area, in square units, of the triangular prism?

Montano1993 [528]

Answer:

C. 152 units²

Step-by-step explanation:

Total surface area is the area of the net.

The rectangles have area:

8*(5 + 6 + 5) = 128 units²

The triangles have area:

2*(1/2*6*4) = 24 units²

Total area is:

128 + 24 = 152 units²

Correct choice is C

5 0

3 years ago

Read 2 more answers

Angie has a square dog pen with a perimeter of 20 meters. She wants to put a diagonal piece of fencing inside her pen to cut it

Dima020 [189]

Answer: 7.07 miles

Step-by-step explanation:

Hi, to answer this, first, we have to find the length of the square dog pen.

Perimeter of a square = 4 x sides

Replacing with the value given:

20 = 4 s

Solving for s:

20/4=s

Side = 5 meters

Since the situation forms a right triangle (see attachment) we have to apply the Pythagorean Theorem:

c^2 = a^2 + b^2

Where c is the hypotenuse of the triangle (in this case length of the diagonal) and a and b are the other sides.

Replacing with the values given:

c^2 = 5^2 + 5^2

c^2 = 25+25

c^2 = 50

c = √50

c = 7.07 miles

Feel free to ask for more if needed or if you did not understand something.

7 0

3 years ago