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Alexus [3.1K]
4 years ago
14

Solve and justify each step SHOW WORK Solve: -4(n+5)>3n+8

Mathematics
1 answer:
natulia [17]4 years ago
7 0
-4n-20>3n+8

-7n-20>8

-7n<28
n<-4
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John went to the deli on his lunch hour he bought 1.3 lbs of roast beef and 0.6 lbs of cheese both were on sale for $3.99 per po
aleksley [76]

Johns total at the deli is $ 7.58

<u>Solution:</u>

Given, John went to the deli on his lunch hour he bought 1.3 lbs of roast beef and 0.6 lbs of cheese both were on sale for $3.99 per pound.  

We have to find the nearest cent how much was Johns total at the deli

Now, we know that, total cost = cost of beef + cost of cheese

Total cost = amount of beef bought \times cost of beef per pound + amount of cheese bought \times cost of cheese per pound  

Total amount = 1.3 \times 3.99 + 0.6 \times 3.99

Total amount = 3.99(1.3 + 0.6) = 3.99 x 1.9

Total amount = 7.581

Hence, the total amount was $7.58

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3 years ago
Where the square root of 7 be located on the number line below?
Semmy [17]

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Step-by-step explanation: 2.64 x 2.64 = 6.9696

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4 years ago
WILL GIVE BRAINLIEST!
Nataly [62]

Answer:

The equation the circle is given by

{\bf 4x}^{\bf 2}+{\bf 4y}^{\bf 2}-{\bf 8x+0y-60}={\bf 0}

Step-by-step explanation:

The general form of the circle is

x^2+y^2+Dx+Ey+F=0\hfill (1)

Given points are (5,0) , (0,4) and (2,4)

Let the points (5,0) , (0,4) and (2,4) be (x_1,y_1) , (x_2,y_2) and (x_3,y_3) respectively

The equation of the circle passes through given points (5,0) , (0,4) and (2,4)

Substituting the point (5,0) in (1)

(-5)^2+(0)^2+D(5)+E(0)+F=0

25-5D+F=0

5D-F=25\hfill (2)

Substituting the point (0,4) in

(0)^2+(4)^2+D(0)+E(4)+F=0

16+4E+F=0

4E+F=-16\hfill (3)

Substituting the point (2,4) in

(2)^2+(4)^2+D(2)+E(4)+F=0

4+16+2D+4E+F=0

2D+4E+F=-20\hfill (4)

By solving the equations (2) ,(3) and(4) we get the values of D,E and F as below

D=-2  , E=0  and F=-15

substituting the values of D,E and F in (1) we get

x^2+y^2-2x+(0)y-15=0

Now multiplying the above equation into 4 we get

4x^2+4y^2-8x+(0)y-60=0

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3 years ago
The diagram below is divided into equal parts.which fraction of the parts is white?
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Answer:

no diagram

Step-by-step explanation:

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