MATHEMATICS MIDDLE SCHOOL

Light bulb usually cost $2.00. if the sale is 0.50 of the regular price, what is the sale price

Answers

Answer 1
Answer: sale\ price= original\ price-\ discount\n\nsale\ price=2-0.5=1.5\$\n\nSale\ price\ is\ equal\ to\ 1.5\$.

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Telly’s salary increased from $60 to $80 a week. What percent of increase in salary was this?
Write the value of the underlined digit 153,732,991
How do you solve 3(m + 5 + 9m)
Hi really need these two in like, 5-10 minutes. Sorry to sound rude but it is an emergency!!!Thank you all in advance!!!
the sum of two positive numbers is 5 times their difference.what is the ratio of the larger number to the smaller number?

Solve the exponential equation for x. 625 = 5 (7x-3)A. x = 1
B. x = -1
C. x = 2
D. x = -2

Answers

Answer:

A. x = 1

Step-by-step explanation:

5^(7x-3)=625\n\n5^(7x-3)=5^4\iff7x-3=4\qquad\text{add 3 to both sides}\n\n7x=7\qquad\text{divide both sides by 7}\n\nx=1

Answer:

X = 1

Step-by-step explanation:

What is 40 divided by 9 with remainder

Answers

The answer is 4 4/9. (or 4 with a remainder of 4)
To convert 40/9 from an improper fraction to a mixed number, divide 40 by 9 to get 4. The remainder is 4, so the number is 4 4/9.

The value obtained when 40 is divided by 9 is 4 remainder 4

Given the values :

  • Numerator = 40
  • Denominator = 9

Now we have ;

  • 40/9 = 4

Remainder :

  • 40 - (9 * 4) = 4

Hence, 40 divided by 9 is 4 remainder 4

Learn more on expressions : brainly.com/question/2972832

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Drew bought a chemistry book for $30. Later that book was marked down by 20%. By how much has that value been decreased? Btw please show work.

Answers

Solution:

30 - (30*0.80) = 30 - 24 = 6

or you can do

30 * 0.20 = 6
30 over 100 times 20= 6
so it decreased by 6 dollar

Cora and Judy raised 12 birds. Cora owns 6 fewer than Judy. How many birds belong to Judy?

Answers

12-6=6 
So Judy has 6 birds
So Cora and Judy have equal amounts of Birds
x-\ Cora\ny-\ Judy\n\nx+y=12\nx+6=y\n\nx+x+6=12\n2x+6=12\ \ | subtract\ 6\n2x=6\ \ \ | divide\ by\ 2\nx=3\ny=3+6=9\n\n9\ birds\ belong\ to\ Judy.

Which expression is equivalent to the given expression?3(2a + 5)

11a

6a + 15

6a + 5

21a

Answers

3(2a + 5) = 3 * 2a + 3 * 5 = 6a + 15
the answer is 6a + 15

45 = 9(W - 4)
Leave steps​

Answers

Answer:

W=9

Step-by-step explanation:

45=9(w-4)

45=9w-36

+36. +36

81=9w

81÷9=9w÷9

9=w

Answer:45=9W-36

45+36 =9W

81 = 9W

9 = W

Step-by-step explanation:
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