Standard form -2.56 x 10 ^3

Answers

Answer 1

Answer: The Exponent tells you how to move the decimal to the right. So

-2.56 x 10^3 says move the decimal 3 places to the right:

-2560 is the original number ~ Which Im guessing is the standard form...

Answer 2

Answer: the answer is -2560, that is if multiplied

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One side of a triangle is 1 in. longer than the shortest side and is 1 in. shorter than the longest side. The perimeter is 17 in. Find the dimensions of the triangle.

Answers

X + (x+1) + (x+2) = 17 3x + 3 = 17 3x = 14 X = 14/3 Shortest side = 14/3 = 4-2/3 Medium side = 5-2/3 Longest side = 6-2/3 . Their sum is 17 .

Ten less than double a number is the same as seven times the number. Find the number

Answers

Put in equation form, that problem would be 2n - 10 = 7n

Subtract 2n from each side and you get -10 = 5n

Divide both sides by 5 and you get -2 = n

So the answer would be -2 (negative two).

Use the distributive property to rewrite 28*63

Answers

(20+8)*(60+3)
Not sure if this is what you were looking for but I hope it helps.

Final answer:

To use the distributive property to state 28*63, we break down 28 into two smaller numbers say 20 and 8, and then multiply each by 63 and add the products. So, 28*63 is (20*63)+(8*63), which is 1764.

Explanation:

The problem is asking you to use the distributive property to rewrite the multiplication 28*63. The distributive property is about breaking down larger numbers into smaller, manageable parts. Now, this involves a strategy of breaking down the numbers.

Let's break down the number 28 into 20 and 8. So, the multiplication could be rewritten as (20 + 8) * 63.

Now apply the distributive property (also known as Distributive Law of Multiplication) which states that multiplying a number by a sum of two numbers is equivalent to multiplying the number individually by each of the numbers and then adding the products together.

So, (20 + 8) * 63 equals (20*63) + (8*63)

The final answer to the equation would be (20*63) + (8*63) = 1260 + 504 = 1764.

Learn more about Distributive Property here:

brainly.com/question/37341329

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A team t-shirt costs $3 per adult and $2 per child. On a certain day, the total number of adults (a) and children (c) who bought shirts was 100, and the total money collected was $275. Which of the following options represents the number of children and the number of adults who purchased team shirts that day, and the pair of equations that can be solved to find the numbers? A.) 75 children and 25 adults
Equation 1: a + c = 100
Equation 2: 3a − 2c = 275

B.) 75 children and 25 adults
Equation 1: a + c = 100
Equation 2: 3a + 2c = 275

C.) 25 children and 75 adults
Equation 1: a + c = 100
Equation 2: 3a − 2c = 275

D.) 25 children and 75 adults
Equation 1: a + c = 100
Equation 2: 3a + 2c = 275

Answers

Answer:

Option D is correct.

Step-by-step explanation:

A team t-shirt costs $3 per adult and $2 per child.

Let the number of children be = c

Let the number of adults be = a

A team t-shirt costs $3 per adult that is 3a and $2 per child that is 2c, also given is that the total money collected is $275, so equation becomes:

$3a+2c=275$

On a certain day, the total number of adults (a) and children (c) who bought shirts was 100, equation becomes: $a+c=100$

Now to know the number of children and adult, we can check by plugging in the values from options provided.

25 children and 75 adults = 25(2)+75(3)=50+225 =275

Rest options do not fulfill the requirements, so Option D is correct.

The answer is:

25 children and 75 adults
Equation 1:a + c=100
Equation 2: 3a + 2c=275

Have a nice day!

A farmer is fencing off his field. A diagram is given and shows how the field has been divided into two regions. The area ofregion one is 950 sq ft. The area of region two is 4845 sq ft. Find the perimeter around the entire field
15x - 45
4.X-10
2
3x
a 150 ft
b. 224 ft
С. 176 ft
d. 384 ft

Answers

Answer:

The answer is D.384

Step-by-step explanation:

Sheila has 5 times as many markers as Dave. together they have 18. how many markers does Sheila have???