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liubo4ka [24]
2 years ago
13

The question is listed in the image below.

Mathematics
1 answer:
LenaWriter [7]2 years ago
6 0

Answer:

y = 7

Step-by-step explanation:

The similarity statement ABCD \sim WXYZ tells you which vertex from the first polygon corresponds to which vertex from the second polygon.

A is paired with W, B is paired with X, C is paired with Y, D is paired with Z.

The expression <em>y</em> + 2 is placed along side WZ which corresponds to side AD in the first polygon.

Now locate two sides, one from each polygon, that are labeled with just <u>numbers</u>.  That way, you'll be able to tell what the proportion is between the two shapes.

AB and WX correspond and are labeled 5 and 3, respectively.

Now you can write a proportion:

\frac{WX}{AB}=\frac{WZ}{AD}\\\\\frac{3}{5}=\frac{y+2}{15}

Use the Means-Extremes Property ("cross multiply").

5(y+2)=3(15)\\\\5y+10=45\\\\5y=35\\\\y=7

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Can someone help me with system of equations?
nignag [31]
2x + y = 350
x + 2y = 475 
3x + 3y = 825
x + y = 275
x = 275 - y 
(plug back into first equation) 
2(275 - y) + y = 350
550 - 2y + y = 350 
550 - y = 350
-y =-200 or y = $200 (dog)
therefore, x = $75 (cats)
Check
2(75) + 200 = 350
75 + 400 = 475 
HAPPINESS! :)
3 0
3 years ago
On a map, 1 inch equals 5.2 miles. Two house are 3.5 inches apart on the map. What is the actual distance between the house?
MissTica

Answer:

18.2 miles

Step-by-step explanation:

simple multiplication:

We know that 1 inch of distance on the map is equal to 5.2 miles.

Using this knowledge we can multiply the amount of inches by the miles per inch.

5.2*3.5=18.2 miles apart

Hope this helps!!

4 0
3 years ago
A shop has a sale that offers 20% off all prices.
NeTakaya
I think that the answer is 45% because the sale started off with a 20% discount, but at the end they added another 25% to the sales. So since the sale already started off with 20%, you add 20%+25% which equals 45%. 
5 0
3 years ago
A cyclist travels at a rate of 1.8 kilometers per minutes.how fat will the cyclist travel in 48 minutes?
WARRIOR [948]
You would multiply 1.8 × 48 to find your answer.

1.8
×48
--------
14.4
+72.0
--------
86.4

So the cyclist travels 86.4 km
4 0
3 years ago
Find 3rd and 5th form by using nth term formula tn=a+(n-1)d when tn=a+(n-1)d when a=2 and d=3.​
lawyer [7]

Answer:

t3 = 8, t5 = 14

Step-by-step explanation:

t3 = 2 + (3-1) × 3

t3 = 2 + (2) × 3

t3 = 2 + 6

t3 = 8

t5 = 2 + (5-1) × 3

t5 = 2 + (4) × 3

t5 = 2 + 12

t5 = 14

8 0
3 years ago
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