My daughter needs help with homework.

Answers

Answer 1

Answer: Just find the a common denominator between the two fractions and then add across

For example on the first one i'm going to turn each fraction into an improper fraction by multiplying the whole number by the denominator then adding that number to the numerator

2 1/8 = 17/8
4 2/3 = 14/3

Then multiply the denominators together to get 24 - this is the common denominator (24)

Figuring out the numerator is more complex - figure out what number needs to be multiplied to the original denominator that makes it 24 - then multiply that to the numerator. Add the two products and the answer should be 163/24.

This could be dead wrong because the number next to the fraction could be multiplying in - in that case the answer is 35/12 and has a completely different set of steps.

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26% of 48 is what number

A polygon has the following coordinates: A(4,2), B(-3,2), C(-3,5), D(4,5). Find the length of DA.A.
4 units
B.
C.
2 units
3 units
D.
5 units
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Submit

Answers

Option C: 3 units is the length of DA

Explanation:

The coordinates of a polygon ABCD are $A(4,2), B(-3,2), C(-3,5), D(4,5)$

We need to find the length of DA

The length of DA can be determined using the distance formula,

$d=√((x_2-x_1)^2+(y_2-y_1)^2)$

Let us substitute the coordinates $A(4,2)$ and $D(4,5)$ in the distance formula, we get,

$d=√((4-4)^2+(5-2)^2)$

Subtracting the terms within the bracket, we have,

$d=√((0)^2+(3)^2)$

Squaring the terms, we get,

$d=√(0+9)$

Adding the terms, we have,

$d=√(9)$

$d=3 \ units$

Thus, the length of DA is 3 units.

Hence, Option C is the correct answer.

Which statement is false ?A Every integer is also a real number .

B Every irrational number is also a real number .

C No irrational number is rational

D Every integer is also an irrational number

Answers

The answer is D every integer is also an irrational number because there are many integers that are not irrational like 5 every integer is rational.

D. an integer is a rational number. D is false.

What is doubled of 13

Answers

To double you have to multiply by 2.
13×2=26

the answer will be 169 because 13×13=169

Which is the better loan

Answers

Answer:

loan 2 on the first one and loan 1 on the second one

Answer:

loan 2 for number 3

and

loan 1 for number 4

if you look at the interest, time it takes to pay it off, and how much you'd have to pay each month you normally can tell which one is the better deal. :)

Sarah burns an average of 744 calories in 45 minutes while running. She ran at 10 miles per hour. There are 5,280 feet per a mile. How many calories did Sarah burn per foot? Round to the nearest tenthousandth.

Answers

Number of miles ran by Sarah in 1 hour or 60 minutes = 10 miles
Then
The number of miles ran by Sarah in 45 minutes = (10/60) * 45 miles
   = (45/6) miles
   = 15/2 miles
   = 7.5 miles
Now we already get from the question certain important data. From those data we come to know
1 mile = 5280 feet
So
7.5 miles = (5280 * 7.5) feet
      = 39600 feet
By running 39600 feet the amount of calories burnt by Sarah = 744 calories
So
By running 1 foot, the amount of calories burnt by Sarah = (744/39600) calories
   = 0.019 calories
   = 0.02 calories
So Sarah burns 0.02 calories per feet.

(744 calories/ 45 minutes)* (60 minutes/ 1 hour)* (1 hour/ 10 miles)* (1 mile/ 5,280 ft)= 0.018788 calories/ft.
(Note that the units cancel out so you get the answer)

Rounded to the nearest ten thousandth, the final answer is 0.0188 calories/ft~

What is 19% of 72? I NEED TO KNOW HOW YOU GOT THE ANSWER TO!!

Answers

First you must multiply the number by the percent. (19*27= 513)
Then you divide the answer by 100, or move decimal two places to the left. (513/100= 5.13)
Then round to the nearest whole number (5.13 is approximately 5)
Therefore 19%of 27 = 5
:)