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Sedbober [7]
3 years ago
10

A 3-pack of light bulbs costs $3.27. What is the unit price

Mathematics
1 answer:
padilas [110]3 years ago
3 0

Answer:

0.91$

Step-by-step explanation:

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EASY POINTS AND PLEASE HELP ASAP!!! WILL MARK BRAINLIST! ;)
Evgesh-ka [11]

Step-by-step explanation:

1.

- 2(3x + 7) = 32 - 4x \\ distribute \\  - 2 \times 3x =  - 6x \\  - 2 \times 7 =  - 14 \\  - 6x - 14 = 32 - 4x \\ add \: 4x \: to \: both \: sides \\  - 6x + 4x = 32 - 4x + 4x \\  - 2x = 32 \\ divide \: by \:  - 2 \\   \frac{ - 2x}{ - 2}  =  \frac{32}{ - 2}  \\  \\ x =  - 16

2.

4x + y = 3 \\  y =  - 4x + 3 \\ using \: point \: slope \: form \\ y - y1 = m(x - x1) \\ y + 6 =  - 4(x + 4) \\ y + 6 =  - 4x - 16 \\ y =  - 4x - 22

First equation: Your equation is given.

Second equation: Distribute by multiplying every number in the parentheses by the number outside it.

3rd equation: Combine like terms by adding 4x to both sides.

4th equation: Combine like terms by subtracting 14 from both sides.

5th equation: Divide both sides by -2, the coefficient of x.

3 0
3 years ago
Colin and Brian were playing darts. Colin scored 148. Brian scored 61 more than Colin. What was their combined score?
Natali [406]

Answer:

357

Step-by-step explanation:

First you would add 61 to 148 for Brian's sore then you would add Brian's score to Colin's score to get 357. Hope this helps! Have a great day!

4 0
3 years ago
HELP PLEASE EITHER ONE!! JUST SHOW ME HOW!! THANK YOU
Oksanka [162]
Try Socratic hope that helps
5 0
3 years ago
250 students were asked to choose their favorite color. How many more students chose purple than red as their favorite color? 26
nevsk [136]

Answer:

10 more students chose purple than red as their favorite color

Step-by-step explanation:

Step 1

Determine the proportion of students that chose each color

purple=26%

red=22%

Step 2

Use the expression for the number of students per color as follows;

Number of students per color=proportion per color×total number of students

for purple;

proportion that chose purple=26%

total number of students=250

replacing;

Number of students that chose purple=(26/100)×250=65 students

for red;

proportion that chose red=22%

total number of students=250

replacing;

Number of students that chose purple=(22/100)×250=55 students

Step 3

Difference=65-55=10

10 more students chose purple than red as their favorite color

6 0
3 years ago
Due to recent energy crisis in California, rolling blackouts were necessary and more might be necessary in the future. Assume th
Illusion [34]

Answer:

The probability of the temperature exceeding 65 degrees Fahreneit but not needing a rolling blackout is 0.4- Hence, there is a 40% chance.

Step-by-step explanation:

Lets call F the event 'the temperature will exceed 85 degrees Fahrenheit' and B the event 'a blackout will be needed'.

We want P(F ∩ B^c), note that if F happens, there could be 2 disjoint possible events: B or B^c, hence

P(F) = P(F ∩ B) + P(F ∩ B^c)

Hence

P(F ∩ B^c) = P(F) - P(F ∩ B) = 0.6 - 0.2 = 0.4

7 0
3 years ago
Read 2 more answers
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