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REY [17]
2 years ago
8

If four desk lamps cost a $120 what is the average cost per lamp

Mathematics
2 answers:
alekssr [168]2 years ago
8 0
My answer -

120/4 = 30 So the average cost of a lamp is $30

P.S

Happy to help you have an AWESOME!!! day :)
almond37 [142]2 years ago
4 0
$30 each because 120/4
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Use grouping symbols to make the following equation true. 5³ ÷ 5+20=5
Alona [7]

In this question,We have to group the given expression to get 5 as the final answer .

5^3 \div 5+20

Here we put 5 +20 in parenthesis, that is

5^3 \div (5+20)

And we do the required operations, that is

=125 \div 25 =5

And we get 5.

3 0
3 years ago
3xsquare-9x-30=0<br> What’s the answer
BartSMP [9]

Answer:

x = - 2 or x = 5

Step-by-step explanation:

Given

3x² - 9x - 30 = 0 ← in standard form

Divide all terms by 3

x² - 3x - 10 = 0

To factor the quadratic

Consider the factors of the constant term (- 10) which sum to give the coefficient of the x- term (- 3)

The factors are - 5 and + 2, since

- 5 × 2 = - 10 and - 5 + 2 = - 3, thus

x² - 3x - 10 = 0

(x - 5)(x + 2) = 0

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 2 = 0 ⇒ x = - 2

6 0
3 years ago
A student downloaded a new game on her phone that was recommended by her friend. She wanted to show her friend how good
anygoal [31]

Answer:

a. 587

b. 543

Step-by-step explanation:

a. Mean = sum / number of numbers

To find the sum, we can add the numbers up.

432 + 543 + 348 + 788 + 823 = 2934

There are 5 numbers. Our mean is thus

2934/5 = 586.8, or 587 when rounding up. We round up because we have a .8 at the end, and 8 ≥ 5

b. To find the median, we first must order the numbers. The numbers ordered are this:

348 ,  432 , 543 , 788 , 823

To find the median, we can cross off one number on each side until we are left with one or two numbers.

348 ,  432 , 543 , 788 , 823

cross out one number from each endpoint

432 , 543 , 788

cross out one number from each endpoint

543

7 0
2 years ago
Caleb got $10 of allowance money and babysat his cousin for $8 per hour this week. He earned a total of $46 this week. Which equ
bearhunter [10]
The answer to this question is 126 hours
8 0
2 years ago
What is an equation of the line that passes through the points (-4, -2) and (8, 1)? Put your answer in fully reduced form.
Alexxx [7]

Answer:

y=1/4x-1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(1-(-2))/(8-(-4))

m=(1+2)/(8+4)

m=3/12

m=1/4

y-y1=m(x-x1)

y-(-2)=1/4(x-(-4))

y+2=1/4(x+4)

y=1/4x+4/4-2

y=1/4x+1-2

y=1/4x-1

8 0
3 years ago
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