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3 years ago

Determine o número formado por: (5×100) + (7×10) + 8

Mathematics

2 answers:

My name is Ann [436]3 years ago

5 0

The answer is 578....................

Orlov [11]3 years ago

3 0

First, You do 5*100 which is 500
Then, you do 7*10 which is 70
Your 8 is basically 8+0 which is 8
Next, You do 500+ 70+8
578 is your answer

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3 years ago

A rectangle has a perimeter of 4848 feet and a length of 1414 feet. Which equation can you solve to find the width?

yawa3891 [41]

(4848 - 2 x 1414) / 2 = 1010

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3 years ago

Sarah had three times as many quarters as nickels. She had $3.20 in all. How many quarters did she have?

marin [14]

She have 12 quarters

<h3>what is unitary method?</h3>

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

There are two situation in Unitary method:

There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

Given:

If she had 12 quarters, then

12 * .25 = $3 ( quarters)

4 * .05 = $.2 ( in nickels)

Hence, she have 12 quarters.

Learn more about unitary method here:

brainly.com/question/22056199

#SPJ2

5 0

2 years ago

Read 2 more answers

An electrician earns 100 dollars for a project installing light fixtures. She must pay for the light fixtures herself and they c

nordsb [41]

Answer: 100 - 2.5x = y

Step-by-step explanation:

6 0

4 years ago

A park has two biking trails. Tailand Trail is 5 3/10 long. Mayland Trail is 2 4/5 miles long. How much longer is Tailand Trail

zvonat [6]

Answer: 2 1/2 miles

Step-by-step explanation:

To subtract fractions with different denominators (in this problem they are 10 and 5), you have to find the least common denominator or LCD (10). Then you have to multiply the numerator and the denominator of 4/5 by 2 to turn the denominator into the LCD (10).

1. So 2 4/5 turns into 2 8/10

2. Then subtract 2 8/10 from 5 3/10 to get the answer 2 1/2

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3 years ago