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balu736 [363]
3 years ago
13

7(8x - 6y + 9) = i need help on this one

Mathematics
2 answers:
snow_tiger [21]3 years ago
8 0

Answer:

56x-42x+63

Step-by-step explanation:

bazaltina [42]3 years ago
8 0

The answer is 56x-42y+63

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Solve for x. 2/3(3x−4)+3x=5/6
BartSMP [9]

Answer:

2/3 ( 3x - 4 ) + 3x = 5/6

2x - 8/3 + 3x = 5/6

5x - 8/3 = 5/6

6(5x -8/3) = 6x5/6

30x - 16 = 5

<u>       +16    +16</u>

<u>30x = 21</u>

   30

x = 21/30

x = 0.7

Step-by-step explanation:

  1. distribute the bracket by 2/3
  2. combine like-terms
  3. multiply both sides by 6 (lcm of 3 and 6)
  4. add 16 to both sides
  5. divide both sides by 30 to get x
3 0
3 years ago
Meg and Tanner take a road trip together where they take turns driving. The ratio of the number of miles that Meg drives to the
frez [133]

Answer:

Step-by-step explanation:

\frac{Meg}{Tanner} = \frac{4}{3}

total dist. driven = dist. Meg drove + dist. Tanner drove

Meg = 112

Tanner = x    or how far did Tanner drive?

\frac{112}{x} = \frac{4}{3}

\frac{3}{4} * 112 = x

84 =x   so Tanner drove 84 miles  

total driven = 112 + 84

total driven = 196    :)

4 0
3 years ago
Please help
irina [24]

Answer:

x^2 -2xy -10y^2

x^2 -9xy +4 y^2

3x^3  +6x^2  -24 x +27

Step-by-step explanation:

3x^2-5xy -6y^2 -( 2x^2 -3xy+4y^2)

= 3x^2- 2x^2 -5xy +3xy-6y^2 -4 Y^2

= x^2 -2xy -10y^2


2x^2−5xy+y^2 -( x^2+4xy−3y^2)

=2 x^2 -x^2 -5xy -4xy +y^2 +3 y^2

=x^2 -9xy +4 y^2


7x^3−16x+18- (4x^3−6x^2+8x−9)

= 7x^3 -4x^3 + 6x^2-16x- 8x +18 +9

=3x^3  +6x^2  -24 x +27



8 0
4 years ago
Increase £15837.77 by 18.5%
labwork [276]

if we take £15837.77 to be the 100% and we increase it by 18.5%, that'll be 100% + 18.5% = 118.5%.

\begin{array}{ccll} \pounds&\%\\ \cline{1-2} 15837.77 & 100\\ x& 118.5 \end{array} \implies \cfrac{15837.77}{x}=\cfrac{100}{118.5} \implies (15837.77)(118.5)=100x \\\\\\ \cfrac{(15837.77)(118.5)}{100}=x\implies 18767.76\approx x

6 0
2 years ago
lisa is painting a fence that is 26 feet long and 7 feet tall. A gallon of paint will cover 350 square feet. Write and slove a p
swat32
2<span>6 x 7 = 182 now divide that by 16 and your answer is 11.375 round that up to 12.</span>
5 0
4 years ago
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