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V125BC [204]
3 years ago
6

Please please please someone help me

Mathematics
2 answers:
Lisa [10]3 years ago
8 0

Answer:

x=15

Step-by-step explanation:

Substutting in q(x) makes 3=4/5x-9

Add 9 to both sides to get 12=4/5x

Divide both sides by 4/5 and get 15=x

Thus, x=15

Zolol [24]3 years ago
7 0

Answer:

15

Step-by-step explanation:

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The length of a rectangular building is 4 feet more than 3 times the width. The perimeter is 84 feet. Find the width and length
Rus_ich [418]

Answer:

Width=9.5, Length=32.5

Step-by-step explanation:

Let x be the width of the rectangle,

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4 0
3 years ago
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sashaice [31]
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7 0
4 years ago
I need help with 5,6,7,and 8 please and thank you!!
Sergio [31]

Step-by-step explanation:

step 1. KITE is a kite

step 2. <ski + <kis + 90 = 180 (internal angles of a triangle has a sum of 180)

step 3. <ski + 25 = 90

step 4. <ski = 65°

step 5. <kes = <kis (angles across equal sides are equal)

step 6. <kes = 25°

step 7. <kie = <kis (they are the same angle)

step 8. <kie = 25°.

step 9. let's call ek = x and et = 1 5x

step 10. therefore x + 1.5x + x + 1.5x = 55

step 11. 5x = 55 or x = 11 = ek

step 12. et = 1.5x = 1.5(11) = 16.5.

5 0
3 years ago
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