All categories

3 years ago

20% of a is 11, what is a

Mathematics

1 answer:

KiRa [710]3 years ago

5 0

Answer:

20% of a is 11, what is a

a =55

75% of b is 12, what is b

b = 16

80% of c is 20, what is c

c = 25

200% of d is 18, what is d

d = 9

Step-by-step explanation:

20% of a is 11, what is a

20a = 1100

a =55

75% of b is 12, what is b

75b = 1200

b = 16

80% of c is 20, what is c

80c = 2000

c = 25

200% of d is 18, what is d

200d = 1800

d = 9

You might be interested in

Write the expression as a single natural logarithm.<br> 5 In 3

krok68 [10]

Answer:

5ln3=ln(3^5)

Step-by-step explanation:

Given: 5ln(3)

Use rule: alog(b)=log(b^a), aln(b)=ln(b^a) (doesn't matter what the log base is)

Apply rule: ln(3^5)

8 0

3 years ago

What are solutions to the equation 9x2-7x-4=0

11111nata11111 [884]

Answer:

Step-by-step explanation:

x =(7-√193)/18=-0.383

x =(7+√193)/18= 1.161

3 0

3 years ago

Evaluate:<br> 10 x [(6 + 4) = 2]

svetlana [45]

Answer:

You have to pay close attention to the Order of Operations.

10(6+4)/2. Grouping symbols first.

6+4=10.

10(10)/2

10*10=100.

100/2.

50 is your answer

Step-by-step explanation:

Don't forget to rate me for this answer the Brainliest!

8 0

3 years ago

Simplify.

ValentinkaMS [17]

first, you would rearrange the equation so that like terms were next to each other.

7y - 5y - x2 + 2x2 +3x - 17x

then you would reduce the equation based on like terms

2y + x2 - 14x

then simply rearrange the equation to get the answer, which is <u>B</u>

5 0

3 years ago

Find the missing value

lapo4ka [179]

Answer:

-10

Step-by-step explanation:

since the answer is positive, we need a negative number, if we use -10,two negatives makes a positive, so it becomes

-8 +10=2

4 0

4 years ago