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sergeinik [125]
2 years ago
11

Help me please i don’t get it

Mathematics
1 answer:
Fofino [41]2 years ago
7 0

Answer:

4

Step-by-step explanation:

Both triangles are the same shape, just to different scales. In order to find out the length of side AB in triangle ABC, you have to find out the length of side PQ in triangle PQR and how much bigger than side AB is.

You can tell that sides AC and PR are similar, and 30/5 is 6. You see also that sides BC and QR are similar, and 42/7 is also 6. We have now discovered that triangle PQR is 6 times bigger than triangle ABC.

So now, to find the length of the missing side, we have to shrink side PQ by 6.  24/6 is 4. Therefore, the length of side AB is 4.

You might be interested in
If a car is traveling at 50kph, how long would it take for the car to travel 12.5km?
Amanda [17]

Answer:

4 km

Step-by-step explanation:

T = time

D = distance

S = speed

the forumla to find the distance is

T * S = D

manipulate the equation for this problem:

D/S = T

Plug-in the known values

D = 12.5 km

S = 50kph

12.5km/50kph

cancel units and simplify

4 km

8 0
3 years ago
I need emergent help matching these math words
Blababa [14]
Complementary angles - the sum of two angles equals 90 degrees

Exterior angle theorem- the sum of the remote interior angles of a triangle equals the outside angle

Isosceles triangle- has two equal sides and two equal angles

Supplementary angle- the sum of two angles equals 180 degrees

Triangle sum theorem- the sum of of interior angles equal 180

Vertical angles- congruent angles that are opposite of each other.
8 0
3 years ago
Read 2 more answers
How many square feet of outdoor carpet will we need for this hole? HELP PLS!!!
Otrada [13]

Answer: The answer is 39 square feet.

Step-by-step explanation:

By saying square feet it's indicated that you mean the area of this irregular figure.

To do this you can break apart the shape into two pieces.

The first 11 x 3 rectangle then the 2 x 3 rectangle.

Next, you can find the area to be 33 square feet and 6 square feet. respectively, afterward, you add the areas together to find the area of the figure, which is 39 square feet.

7 0
2 years ago
What is the Awnser to this?
pickupchik [31]
The answer is 16 and 3

8 0
3 years ago
Select the correct answer.
Eva8 [605]

Answer:

Equation C: 5/8x + 2..5 = 3/8x + 1.5 + 1/4x

Step-by-step explanation:

Let us go through each of the equations one by one.

Equation A: 2.3y+2+3.1y=4.3y+1.6+1.1y+0.4

This simplifies to

5.4y+2=5.4y+2

which has infinitely many solutions.

Equation B: 32x+25-21x=10x

this simplifies to

x+25=0

x=-25

which is exactly one solution.

Equation C: \frac{5}{8} x+2.5=\frac{3}{8}x+1.5+\frac{1}{4} x

this simplifies to

\frac{5}{8} x+2.5=\frac{5}{8} +1.5

2.5=1.5

There's no way this is going to be possible; this equation has no solutions.

Equation D: \frac{1}{3} x+\frac{1}{7} x=\frac{3}{7} x

this gives

\frac{1}{3} =\frac{2}{7} y

y=\frac{7}{6}

which is exactly one solution.

Thus we see that it is equation C that has no solutions.

3 0
3 years ago
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