What value of x solves the equation? -3(-5x + 4) = -6

Mathematics

2 answers:

PIT_PIT [208]3 years ago

8 0

Answer:

X = 2/5

Step-by-step explanation:

By the way.

does February March?.... NO but April May

Romashka-Z-Leto [24]3 years ago

6 0

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

•first distribute the -3 by multiplying it by the numbers inside the bracket

15x - 12 = -6

•move the 12 over to the other side to solve for x

Note: when moving numbers to the other side of the equal sign, the sign switches from negative (-) to positive (+)

15x = -6 + 12

•divide both side by 15 to solve for x

15x = 6

x = 6/15

OR (the fraction could be further reduced by dividing top and bottom by 3)

x = 2/5

Remember when multiplying or dividing:
(# -> number sign)

Positive # x positive # = positive number

Negative # x negative # = positive number

Positive x negative = negative

Negative x positive = negative

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Find a ratio equivalent to 15/60

Flauer [41]

Answer:

$\large\boxed{\dfrac{15}{60}=\dfrac{5}{20}=\dfrac{3}{12}=\dfrac{1}{4}}$

$\large\boxed{\dfrac{15}{60}=\dfrac{30}{120}=\dfrac{45}{180}=\dfrac{60}{240}}$

Step-by-step explanation:

Divide the numerator and the denominator by the same number:

$\dfrac{15}{60}\\\\=\dfrac{15:5}{60:5}=\dfrac{3}{12}\\\\=\dfrac{15:3}{60:3}=\dfrac{5}{20}\\\\=\dfrac{15:15}{60:15}=\dfrac{1}{4}\\\vdots$

Multiply the numerator and the denominator by the same number:

$\dfrac{15}{60}\\\\=\dfrac{15\cdot2}{60\cdot2}=\dfrac{30}{120}\\\\=\dfrac{15\cdot3}{60\cdot3}=\dfrac{45}{180}\\\\=\dfrac{15\cdot4}{60\cdot4}=\dfrac{60}{240}\\\vdots$

7 0

3 years ago

Read 2 more answers

There are 3 3/4 pounds of bricks in a bag. Each brick weighs 5/8 of a pound. How many bricks are in the bag.

Bess [88]

Answer: There are 6 bricks in the bag.

Step-by-step explanation:

Convert from mixed number to decimal number. To do it, divide the numerator of the fraction by the denominator and add the result to the whole number part. Then:

$3\frac{3}{4}\ lb=(3+0.75)\ lb=3.75\ lb$