The question is: find 55% of $4.80...how do I find the answer?

Answers

Answer 1
Answer: 4.80 = 100%
   x   = 55%

Cross Multiply

100 * x = 55 * 4.80
100x = 264
x = 264
      100
x = 2.64

Solution: $2.64
Answer 2
Answer: Percentages are out of one, so finding the x% of anything is just multiplying that thing by some decimal value defined by x. In this case, since x is 55, you multiply by .55. If it was 5%, you would multiply by .05, 34% .34, and so on. 4.8*.55=2.64.

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Colin meets three wooden boards to repair his porch.The length he needs are 2.2 meters,2.82 meters,and 4.25 meters.He purchases a board that is 10 meters long and cuts the three sections.how much of the board that Colin purchased will be left.

Answers

Answer:

0.73 meter board that Colin purchased will be left.

Step-by-step explanation:

Given : Colin meets three wooden boards to repair his porch.The length he needs are 2.2 meters,2.82 meters,and 4.25 meters.He purchases a board that is 10 meters long and cuts the three sections.

To find : how much of the board that Colin purchased will be left.

Solution : We have given

He needs  2.2 meters,2.82 meters,and 4.25 meters.

He purchased = 10 m long board.

Total board he needs = 2.2 + 2.82 + 4.25 = 9.27 meter.

Hence 9.27 meter board he need to use .

Board left =  10 - 9.27 = 0.73 meter.

Therefore, 0.73 meter board that Colin purchased will be left.

2.2+2.82+4.25=9.2710-9.27=.73So .73 is left of the board

What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 5.5? A rectangle is shown. The length of the rectangle is labeled as 8 cm, and the width is labeled as 6 cm. Perimeter = 50 cm, area = 155.25 cm2 Perimeter = 50 cm, area = 1,452 cm2 Perimeter = 154 cm, area = 155.25 cm2 Perimeter = 154 cm, area = 1,452 cm2

Answers

The perimeter of the rectangle is by definition:
 P = 2W + 2L
 Where,
 W: width
 L: long
 We have then:
 P = 2 (5.5 * 6) +2 (5.5 * 8)
 P = 154 cm

 The area of the rectangle is by definition:
 A = (W) * (L)
 Where,
 W: width
 L: long
 We have then:
 A = (5.5 * 6) * (5.5 * 8)
 A = 1452 cm ^ 2

 Answer:
 
Perimeter = 154 cm, area = 1,452 cm2

Answer:

the answer is 154 cm, area = 1,452 cm2 I took the test

Step-by-step explanation:

According to exponent rules, when we raise the power to a power we ____ the exponentsa.add
b.subtract
c.multiply
d.divide

Answers

According to the exponent rules, when you raise a power to another power, you c. multiply the exponents. So, the correct option is c. multiply.

According to the exponent rules, when we raise a power to another power, we multiply the exponents.

This fundamental rule is known as the "Power of a Power Rule" in exponentiation. It can be expressed as:

Where:

a is the base.

m is the exponent of the base raised to another power.

n is the exponent to which the previous result is raised.

This rule demonstrates how to simplify expressions where a base is raised to an exponent, and that result is further raised to another exponent. Instead of adding or subtracting the exponents, you multiply them together. This makes intuitive sense when you consider that exponentiation represents repeated multiplication.

for such more question on exponent rules

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Answer:

According to exponent rules, when we raise a power to a power we multiply the exponents.

Step-by-step explanation:

Example:

(3³)² = 3³*² = 3⁶

1/2x + x + 1/5y + y = 32

Answers

(1/2)x + x + (1/5)y + y = 32

(3/2)x + (6/5)y = 32

Saac applied the steps below to find the product of (4.2)(–5.4).Step 1: (4.2)(–5.4) = (–5.4)(4.2)
Step 2: = (–5.4)(4) + (–5.4)(0.2)
Step 3: = (–21.6) + (–1.08)
Step 4: = –22.68

Which step shows where Isaac applied the distributive property?
Step 1
Step 2
Step 3
Step 4

Answers

Answer: Step 2

Step-by-step explanation:

The distributive property is given by :-

(a+b)c=ac+bc, where a,b and c are any number.

The given expression :(4.2)(-5.4)

The above expression can be written as :

(4+0.2)(-5.4)

When we apply distributive property to the given expression, we get

(4)(-5.4)+(0.2)(-5.4)\n\n=(-5.4)(4)+(-5.4)(0.2)

Hence, Step 2 shows the distributive property applied by Isaac.

Step 2: = (–5.4)(4) + (–5.4)(0.2) this step is applied the distributive property

hope it helps

In three math tests, you score 91,95, and 88 points. How many points must you score on the fourth test to have an A average, or at least 90 points?

Answers

You must score 86 points on the fourth test to have an average, or at least 90 points.

What is average?

The average is calculated as the product of all values divided by all possible values. It can also be described as mean. The mean in statistics is the average value for the particular sample or collection of data. It is determined by dividing the total number of observations by the total number of observations.

Given:

In three math tests,

you score 91,95, and 88 points.

Let n be the score of the fourth test.

To find the average:

The average = (91 + 95 + 88 + n) / 4

90 = (91 + 95 + 88 + n) / 4

(91 + 95 + 88 + n) = 360

n = 360 - 274

n = 86

Therefore, the score of the fourth test is 86.

To learn more about the average;

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That already is a 91.1 grade average. If you want to keep that, get a 90 and above. To find your average, add all your test scores up and divide them by how many scores there are. For instance if you add all those scores up you get 274. Divide it by 3 because there are three scores and there is your average!