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frozen [14]
3 years ago
12

Solve the system of linear equations by graphing. 2x + 3y = 16.9 5x = y + 7.4

Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

the intersecting point of the two lines is (2.2999999,4.1)

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Area of a triangle is given by the formula A=1/2 bh. The area of the triangle shown to the right is 56 sq. units. Find its base
Westkost [7]
Given

base=2x+6
height=x+4

and
area=56 square units

56=1/2 times (2x+6) times (x+4)
times bot sides by 2
112=(2x+6)(x+4)
expand
112=2x²+14x+24
divide both sides by 2
56=x²+7x+12
minus 56 both sides
0=x²+7x-44
factor
waht 2 numbers mulitply to get -44 and add to get 7
11 and -4
0=(x-4)(x+11)
set to 0

x-4=0
x=4

x+11=0
x=-11
false, measures can't be negative

x=4


height=x+4
height=4+4=8


base=2x+6
base=2(4)+6=8+6=14



x=4 and base=14 and height=8

8 0
3 years ago
Which is the best estimate of the mass of a skateboard
LekaFEV [45]
Probably B, 3 kilograms. Since grams are too small, and liters isn’t measuring mass, kilograms is the best choice.
8 0
3 years ago
Alice Correa bought three yards of cloth to make a dress. The cloth was on sale for $1.93 per yard.
Ray Of Light [21]
Since the unit rate is $1.93 per yard, you need to multiply the number of yards by 1.93. So 1.93 x 3 = 5.79. Next, you convert 5% to a decimal, which is 0.05. Now, multiply 5.79 by 0.05, which is about 0.29. Finally, add 0.29 to 5.79, giving you the answer of 6.08. Alice payed $6.08; D.
4 0
3 years ago
Help me I need to know before 8:20am today
lozanna [386]

Answer:

184= 4(6y+4)

184= 24y +16

184 -16 = 24y

168=24y

168/24=y

y= 7

6 0
3 years ago
Sam is building a model of an antique car the scale of his model to the actual car is 1 to 10 his model is 8 1/2 inches long how
rewona [7]
16 7/8

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8 0
3 years ago
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