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Sergeu [11.5K]
4 years ago
12

Evaluate the following expression. 1−4x(-3)+8x(-3)

Mathematics
1 answer:
Ira Lisetskai [31]4 years ago
7 0

Answer: 1- 12x

Step-by-step explanation:

Step 1- open bracket and mind the signs

1−4x(-3)+8x(-3)

1+12x-24x

1-12×

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3) one half of four times a number plus the quantity of the number and three *
Charra [1.4K]

Answer:

3.5x

Step-by-step explanation:

Put into numbers, [4*x+(3x)]*1/2. You cant completely solve for x in this, as we would need an answer with no variable. But, 4*x=4x, and 4x+3x=7x because we would need to combine like terms. But you still need to cut it in half. Half of 7x is 3.5x, so there ya go!

8 0
4 years ago
598 x 3 =? Show your work
emmasim [6.3K]

Answer:

1794

Step-by-step explanation:

598

× 3

-------

1794

5 0
3 years ago
Part A) Julio makes a scale drawing of the kitchen floor to determine how many square feet of flooring he needs to buy . The sca
serg [7]
Part A) 
we know that
<span>scale ---------->  inch/4 feet=0.25 in/ft

</span>[scale]=[scale drawing]/[actual]
[actual]=[scale drawing]/[scale]

for <span>length --------> 4 1/2 in ---------> 4.5 in  (</span>scale drawing)
[actual]=[4.5]/[0.25]=18 ft

for <span>width ---------> 3 3/8 in</span> ---> (3*8+3)/8 ---> 27/8 in  (scale drawing)
[actual]=[27/8]/[0.25]=13.5 ft

the answer part A is
length actual <span>kitchen floor is 18 ft
</span>width actual kitchen floor is 13.5 ft

Part B)  
the area of one square in the actual=(1/2)*(1/2)=0.25 ft²
total area gray tiles=0.25*14=3.5 ft²
total area white tiles=0.25*10=2.5 ft²

find <span>how many tiles 2 in by 2 in of each color will he need
1ft</span>²-------------> 144 in²
gray tiles
3.5 ft²---------------> 3.5*144=504 in²
[tiles 2 in by 2 in gray]=504/(2*2)=126 gray tiles 

white tiles
2.5 ft²---------------> 2.5*144=360 in²
[tiles 2 in by 2 in white]=360/(2*2)=90 white tiles 

the answer Part B) is
126 gray tiles
90 white tiles 



6 0
4 years ago
Read 2 more answers
Solve the system of equations −2x−y=−12 and x-3y=27 by combining the equations.
Alenkinab [10]

Answer:

Reduce the greatest common factor on both sides of the equation: (2x+y=12

(x-3y=27

Rearrange like terms to the same side of the equation: (2x+y= 12

(x=27+3y

Substitute into one of the equations: 2(27+3y)+y=12

Apply Multiplicative Distribution Law: 54+6y +y=12

Rearrange unknown terms to the left side of the equation: 6y+y=12-54

Combine like terms: 7y=12-54

Calculate the sum or difference: 7y=-42

Divide both sides of the equation by the coefficient of variable: y= -42÷7

Calculate the product or quotient: y= -6

Substitute into one of the equations: x=27+3×( -6)

Remove the parentheses: x=27-3×6

Calculate the product or quotient: x=27-18

Calculate the sum or difference: x=9

The solution of the system is: x=9

y=-6

Answer:

x=9

y=-6

7 0
2 years ago
1and 2 are supplementary angles. M1 is 4 y + 7 and m2 is 9y+4 what is m 2
slamgirl [31]
M2 is y=19.555 hope this helps 
8 0
4 years ago
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