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3 years ago

6

Determine whether the lines given by the equations

6" alt="2x+3y=6" align="absmiddle" class="latex-formula"> and $y= \frac{3}{2x} +4$

1 answer:

Alex777 [14]3 years ago

8 0

Determine whether the lines what?

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A car cost $18,000, which is 9/10 of the cost of an apartment. A motorcycle cost 1/5 of the cost of the apartment or 4/5 of the

blagie [28]

Answer:

$1500

Step-by-step explanation:

let the cost of the apartment = x

Hence the cost of the car is $\frac{9}{10} \times x$

also given the cost of car=18000

Hence

$18000= \frac{9x}{10}$

$x= \frac{18000 \times 10}{9}$

$x= 2000 \times 10$

$x= 20000$

Motorcylce cost = $\frac{1}{5}$ of Cost of apartment

= $\frac{1}{5} \times 20000$

= $4000$

Also Motorcylce cost= $\frac{4}{5}$ of the cost of 100 soccer balls.

Hence

4000= $\frac{4}{5}$ x (cost of 100 soccer balls.)

(cost of 100 soccer balls.)= $\frac{4000 \times 5}{4}$

(cost of 100 soccer balls.)= $1000 \times 5$

cost of 100 soccer balls= $5000$

cost of 1 soccer balls = $\frac{5000}{100}$

cost of 1 soccer balls = 50

cost of 30 soccer balls = 50 x 30

cost of 30 soccer balls = 1500

Hence the cost of 30 balls is $1500

4 0

4 years ago

Please halp!!!!!!!!!!!!!!

BartSMP [9]

Answer:

132 degrees

Step-by-step explanation:

360 - 65 - 86 -77

8 0

3 years ago

Help me out hereeeeeeeeeeeeeeeeeeee

r-ruslan [8.4K]

Answer:

$8\frac{1}{5} acres$

Step-by-step explanation:

$7\frac{1}{4} + 3\frac{1}{5} - 2 \frac{1}{4} \\\\7\frac{1}{4} - 2 \frac{1}{4} = 5\\\\then:\\\\7\frac{1}{4} + 3\frac{1}{5} - 2 \frac{1}{4} = 5 + 3\frac{1}{5} = 8 \frac{1}{5}$

8 0

3 years ago

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A movie screen has an area of 162 square meters and a perimeter of 54 meters. What are the dimensions of the screen?

ololo11 [35]

Answer:

18 meters by 9 meters (or 9 meters by 18 meters)

Step-by-step explanation:

lets say the dimensions are x and y. we have x*y=162, and 2x+2y=54. from the second equation we have x+y=27 so y=27-x. plug this into the first equation to get x(27-x)=162 or -x^2 + 27x = 162. x^2 - 27x + 162 = 0. simplify to get (x-18)(x-9)=0. so x=18 or x=9. when x=18, y=9, when x=9, y=18 so the dimensions are 18 by 9 meters

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3 years ago

The measures of two angles in this acute triangle are 38° and 72°. What is the measure of the third angle? A. 18° B. 33° C. 70°

Dovator [93]

Answer:

C

Step-by-step explanation:

38+72= 110

180-110= 70

C

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3 years ago