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2 years ago

Is is true that the coefficient of the expression 18z-7(-3+2z) of z is 13

Mathematics

1 answer:

Sever21 [200]2 years ago

3 0

<span>18z-7(-3+2z)
= 18z + 21 - 14z
= 4z + 21

answer is False
</span><span>coefficient of z is 4, not 13</span>

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Klio2033 [76]

Answer:

your answer will be 12

Step-by-step explanation:

$4x-6=42\\\\4x=42+6\\\\4x=48\\\\x=12$

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2 years ago

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Aboardis 84 inch long it will be cut into 15 equal pieces what will be the length

elena-s [515]

Answer:

each piece is 5.6 in

Step-by-step explanation:

84/15 = 5.6

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2 years ago

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in a roulette wheel there are 38 numbered slots: 36 slots are the numbers 1 through 36 and the remaining two slots are 0 and 00.

frez [133]

roulette consists in placing a small ball in a roulette wheel, Probability (Roulette ball not landing on red) = 10 / 19

The probability of an event can be calculated by probability formula by simply dividing the favorable number of outcomes by the total number of possible outcomes

Given:

Number of total slots = 38

Number of red slots = 18

Number of black slots = 18

Number of green slots = 2

Find:

Probability (Roulette ball not landing on red)

Computation:

Probability (Roulette ball not landing on red) = 1 - Probability (Roulette ball landing on red)

Probability (Roulette ball not landing on red) = 1 - (18 / 38)

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7 0

1 year ago

If three times the larger of two numbers is four times the smaller and the difference between the numbers is 8, then the larger

MaRussiya [10]

Answer:

Larger number = 32

Step-by-step explanation:

Smaller number = x

Larger number = y

y - x = 8 -----------(I)

3y = 4x ---------------(II)

3y/4 = x

Plug in x = 3y/4 in equation (I)

$y - \frac{3}{4}y = 8\\\\\frac{4}{4}y - \frac{3}{4}y = 8\\\\\frac{1}{4}y = 8\\$

y = 8*4

y = 32

Plug in y = 32 in equation (II)

3y = 4x

3*32 = 4x

4x = 3*32

x = $\frac{3*32}{4}$

x = 3 *8

x = 24

7 0

2 years ago