MATHEMATICS MIDDLE SCHOOL

166+88+99+one hundred
help im so confused

Answers

Answer 1
Answer: 166+88+99+100=453
one hundred=100 that is why i put the 100
Add all together and you get 453.
Answer 2
Answer: So basically we are adding them all together166+88+99+100=45Hope I helped you

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11 billion in scientific notation

Answers

11000000000
1.1 x 10^10

Billion has 9 zeros.
11,000,000,000 = 11 billion in standard form

11 to the 9th power would be your answer

Which ordered pairs in the form (x, y) are solutions to the equation 4x – 5y = 24?

Choose all answers that are correct.

A. (-9,-12)

B. (1,-4)

C. (4,8)

D. (6,0)

Answers

The ordered pairs are  (-9,-12) and (6,0) satisfying the equation 4x – 5y = 24. The correct option is A and D.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given expression is 4x – 5y = 24. We will check the points as:-

4x – 5y = 24

Use:- (-9,-12)

( 4 x -9 ) - ( 5 x 12)  = 24

-36 - 60 = 24

24 = 24

4x – 5y = 24

Use:- (6,0)

( 4 x 6 ) - 0 = 24

24 = 24

Therefore, the ordered pairs are  (-9,-12) and (6,0) satisfying the equation 4x – 5y = 24. The correct option is A and D.

To know more about an expression follow

brainly.com/question/2701113

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Plug the values into the equation and check if it's true.

(x,y)=(-9,-12) \n4 * (-9) -5 * (-12) \stackrel{?}{=} 24 \n-36+60 \stackrel{?}{=} 24 \n24 \stackrel{?}{=} 24 \n24 = 24 \na \ solution \n \n(x,y)=(1,-4) \n4 * 1 - 5 * (-4) \stackrel{?}{=} 24 \n4+20 \stackrel{?}{=} 24 \n24 \stackrel{?}{=} 24 \n24=24 \na \ solution

(x,y)=(4,8) \n4 * 4 - 5 * 8 \stackrel{?}{=} 24 \n16-40 \stackrel{?}{=} 24 \n-24 \stackrel{?}{=} 24 \n-24 \not= 24 \nnot \ a \ solution \n \n(x,y)=(6,0) \n4 * 6- 5 * 0 \stackrel{?}{=} 24 \n24 -0 \stackrel{?}{=} 24 \n24 \stackrel{?}{=} 24 \n24=24 \na \ solution

The answers are A, B and D.

What is two thirds of 120?

Answers

(2)/(3)\cdot 120 =2\cdot 40=80

The two third of the given number,

⇒ (2/3)x120 = 80

The given  number is,

120

We have to find its two third:

To find this,

First multiply this number wit 2 then,

2x120 =240

Then divide the number by 3

240/3 = 80

Thus two third of the given number  can be written as,

(2/3)x120

= (2x120)/3

= 240/3

= 80

Hence,

⇒ (2/3)x120 = 80

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A rectangular prism is 4 units by 2 1/2 units by 1 1/2 units. How many cubes with a side length of 1/2 unit will completely fill the prism?

Answers

there should be abut 2/3 

98-49 use rounding or compatible numbers to estimate the difference

Answers

Well you round 98 to 100 and 49 to 50. So 100-50=50.
Well you round 98 to 100 and 49 to 50. So 100-50=50

Which is the best estimate for the quotient of 3,004.914 ÷ 0.298? A. 100 B. 1,000 C. 10,000 D. 100,000

Answers

the answer is C put it in a calculator 
C
3,004.914 ÷ 0.298 = 10083.6040268
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