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tiny-mole [99]
3 years ago
14

Answer please !! Due in 45 minutes m

Mathematics
1 answer:
weqwewe [10]3 years ago
5 0

Answer:

(-3,3)

Step-by-step explanation:

Using elimination:

Multiply the first equation by 8 and the second by 5 which equals

40x+56y=48

-40-60y=-60

Now you add them together

40x+(-40x)=0 so that crosses out

56y+(-60y)= -4y

48+(-60)=-12

You now have -4y=-12

Divide by -4

y=3

Now plug in y to any of the equations

5x+7(3)=6

5x+21=6

Subtract 21 from both sides

5x=-15

Divide by 5

x=-3

Your final solution is (-3,3)

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A cone has volume 12pie cubic inches. Its height is 4 inches. What is its radius?
stepan [7]

Answer:

r = 3

Step-by-step explanation:

The formula of a volume of a cone

V= 1/3 pie r^2 H

r - radius

H - height

We have V = 12π in³ and H = 4 in. Substitute:

4 0
3 years ago
At an amusement park, 10 out of 25 tickets sold were discount tickets. What percentage of the tickets were discount ticket
mezya [45]

Answer:

<h2>40% of the tickets were discount ticket</h2>

Step-by-step explanation:

10/25 are discount tickets

x by 4 to make the denominator 100

40/100

make into percentage

40%

7 0
3 years ago
ted wants to buy a skateboard that costs $59.00, but is on sale for 30% off. How much money will he save
Ugo [173]

Answer:

$17.70

Step-by-step explanation:

Hi,

What you want to do is to find 30% of $59

First, you convert 30% into decimal form by dividing it by 100

30%=0.3


Next, you want to find 30% of 59, so what you do is you take the new decimal form and multiply it by 59

0.3×59=17.7


Ted is saving $17.70

5 0
3 years ago
At a fair, the Pick-A-Duck game has 55 ducks to choose from, but only 11 of the ducks will win a prize.
zvonat [6]
Probablity=desiredoutcomes/totalpossible

desired=prize=11
total possible=55
so probblity is 11/55 or 1/5

answer is C
4 0
4 years ago
Read 2 more answers
Maria and Farida had 250 beads altogether. After Maria used 18 beads to make a bracelet and Farida gave away 2/5 of her beads, t
sashaice [31]
M + f = 250 ;
m - 18 = ( 3 / 5)f ;

5m / 5 - 90 / 5 = 3f;
5m - 90 = 3f ;
5m - 3f = 90;
But, f = 250 - m;
5m - 3( 250 - m ) = 90 ;
5m - 750 + 3m = 90 ;
8m = 840;
m = 840 ÷ 8 ;
m = 105( beads for Maria );
f = 250 - 105 ;
f = 145 ( beads for Farida ) ;


7 0
3 years ago
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