MATHEMATICS HIGH SCHOOL

If 4 desk lamps cost $20 what is the avarage cost per lamp

Answers

Answer 1
Answer: 20 ÷ 4 = 5 (?) heh (O.o)
Answer 2
Answer:

4 lamps=$20

1 lamp=$x

20/4=x

20/4=$5

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HELP PLEASE I WILL GIVE BRAINLY TO CORRECT ANSWER PLS.2 The graphs of y = 3x + 7x – 4 and y + 2x = 10 intersect at the points A and B.Find the coordinates of A and B.You must show all your working and give your answers correct to two decimal places.
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how many pounds of grain is an animal in the united states that is domesticated for meat fed for each pound of meat it produces?

Answers

Answer: 20 pounds

Step-by-step explanation:

If there are 7 white t shirts on the shelve for every 3 purple shirts, how many white shirts are there if there are 40 purple and white

Answers

If there are 7 white t-shirts on the shelf for every 3 purple shirts, we can use this ratio to determine the number of white shirts if there are a total of 40 purple and white shirts.

To find the number of white shirts, we need to divide the total number of shirts by the sum of the parts in the ratio (7 + 3 = 10), and then multiply that result by the number of parts representing white shirts (7).

So, for every 10 shirts, 7 of them are white.

If there are a total of 40 purple and white shirts, we can set up a proportion:

7 white shirts / 10 total shirts = x white shirts / 40 total shirts.

To solve for x, we cross-multiply and solve the equation:

7 * 40 = 10 * x

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280 / 10 = x

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Therefore, there are 28 white shirts among the 40 purple and white shirts.

Which identifies all the integer solutions of |x| = 17?a. –17 and 17
b. 0 only
c. 17 only
d. –17 only

Answers

C because those are called absolute value bars. That means that 17 and -17 both have an absolute value (away from zero) of 17

Who earns more per year, a computer technician or a
sheet metal worker? How much more?

Answers

Answer:

Computer tech

Step-by-step explanation:

The sheet metal worker only makes about 32,000 a year. a Computer tech makes about 36,000 a year

36460-32010=4,450

Please mark Brainliest.

Answer:

Computer technicians make 49k to 95k per year, making the most money.

Sheet metal workers make less because they only make 39k-80k per year.

Step-by-step explanation:

Hoped this helped.

A brainliest is always appreciated

Express the series using sigma notation. 6 + 9 + 12 + 15.

a
b
c
d

Answers

Answer:

Option (d) is correct.

6 + 9 + 12 +15 = \sum_(k=1)^(4)(3k+3)

Step-by-step explanation:

Consider the given series expansion 6 + 9 + 12 +15.

since we have to write in series form of 3.

We first write each term of given series in term of 3k or 3k+3

6 can be written as 3(2) or 3(1)+3

9 can be written as 3(3) or 3(2)+3

12 can be written as 3(4) or 3(3)+3

15 can be written as 3(5) or 3(4)+3

Thus, we can write the given series as ,

\sum_(k=2)^(5)3k or  \sum_(k=1)^(4)(3k+3)

Since, we have options to choose.

From the given option (d) matches our result.

So,  6 + 9 + 12 +15 = \sum_(k=1)^(4)(3k+3)

Answer:

D

Step-by-step explanation:

Four children have small toys. The first child has 1/10 of the toys, the second child has 12 more toys than the first, the third child has one more toy of what the first child has and the fourth child has double the third child. How many toys are there?

Answers

Call x the amount of toys the first child has.We write the equation x+(x+12)+(x+1)+2(x+1)=10x.This is equal to 5x+15=10x. Subtracting 5x, we see that 5x=15, so x=3. There are 10x toys, so we have 3*10=30 total toys.
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