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dem82 [27]
3 years ago
6

If AD=20 and AC=3x+4, find the value of x. Then find AC and DC. I don't understand.

Mathematics
1 answer:
Fofino [41]3 years ago
5 0
<span>Using the information we have 3x+4=40 Do the same to each side of the equation to eliminate for x. 3x+4=40 Minus 4 from each side 3x=40-4 3x=36 Divide 3 from each side x=36/3 x=12 AC=3x+4 insert the value of x 3(12)+4=40 AC=40 AD=20</span>
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a circle has a center at (-2,7). if a point on the circle has coordinates (3,-1) then which of the following would be the length
pickupchik [31]

Given that Circle O is centered at (3,-2) and the circle passesthroughR(7,1),Thedistance between O and R is the radius (r).r=√(7−3)2(1−(−2))2=√25=5diameter =2⋅r=2⋅5=10.

3 0
3 years ago
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a piece of string, 48 cm long, is folded in half lenghtways, then in half again and then in half again
ss7ja [257]
It should be 3cm if I did it right
6 0
3 years ago
Plsss help !!
Gennadij [26K]

Answer:

carnation $2.50; rose $3.00

Step-by-step explanation:

Let c = price of 1 carnation.

Let r = price of 1 rose.

3c + 5r = 22.5

3c + 2r = 13.50

Subtract the se3cond equation from the first equation.

3r = 9

r = 3

Now substitute r = 3 in the first equation and solve for c.

3c + 5r = 22.5

3c + 5(3) = 22.5

3c = 7.5

c = 2.5

Answer: carnation $2.50; rose $3.00

5 0
3 years ago
The distance between city E and F is 678.35 miles and the distance between city F and G is 156.8 miles. What is the distance bet
Free_Kalibri [48]

E to F = 678.35 miles
F to G = 156.8 miles
G to H = x
Total distance = 2,457 miles
E to G = 678.35 + 156.8 miles
E to G = 835.15
G to H = 2,457 - 835.15
G to H = 1621.85 miles

8 0
3 years ago
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6/2 (1 + 2) ? What is the answer to this the answer choices are: 1, 6, 9, and 3
guapka [62]

Answer:

9

Step-by-step explanation:

6÷2(1+2)

(1+2)

3

6÷2×3

6÷2=

3

3×3

9

4 0
3 years ago
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