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3 years ago

Find the sum of the hundreds digit and the tenths digit in the number 1,764.823.

Mathematics

2 answers:

goblinko [34]3 years ago

6 0

1,800 and 60 I would believe since we're rounding

Dmitry [639]3 years ago

3 0

Answer:

The answer is 15

Step-by-step explanation:

The hundreds digit is 7 and the tenths digit is 8 and their sum is 15.

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Eighteen boys joined a group of p students in the auditorium. If the ratio of boys to girls was then 5:4 write and algebraic exp

ycow [4]

Answer: The number of girls in the auditorium is represented by the algebraic expression y=(4x +72) /5

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Number of boys added: 18
Ratio of boys to girls: 5:4

So, the total number of boys is:

x + 18

Number of girls = y

Number of boys / number of girls = 5/4

(x+18) /y = 5/4

Solving for "y"

4 (x +18) =5 y

4x +72 = 5y

(4x +72) /5 = y

The number of girls in the auditorium is represented by the algebraic expression y=(4x +72) /5

8 0

2 years ago

After school Rayah skateboards at a constant rate from her house to her friend's house 1.8 miles away. It takes her 12 minutes t

Sonja [21]

Answer:

Step-by-step explanation:

Given that:

Distance to friends's house = 1.8 miles

Time taken = 12 minutes

Since the rate is constant :

The rate Is related to distance and time :

The two variable equation which represents the equation is :

Speed = Distance / time

5 0

3 years ago

Prove that if a and b are positive integers whose sum is a prime p, their greatest common divisor is 1.

Tasya [4]

Proof by contadiction.

Let assume there exist such positive integers $a$ and $b$ whose sum is a prime number $p$ , that their greatest common divisor is greater than 1.

$a,b\in\mathbb{Z^+}\\d=\text{gcd}(a,b)>1\\\\a=de\\b=df\\e,f\in\mathbb{Z^+}\\\\a+b=p\\de+df=p\\d(e+f)=p\\$

Since $p$ is a prime number and $d>1$ , then $d=p \wedge e+f=1$ , but we assumed earlier that $e,f\in\mathbb{Z^+}$ , and there are no two positive integers that sum up to 1.

q.e.d.

7 0

2 years ago

Which stem-and-leaf plot represents the data? 15, 16, 15, 48, 48, 63, 15, 29, 16, 30, 48

defon

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If x can be any integer what is the greatest possible value of 1^x - |x|

natali 33 [55]

x=1
Is dat what u want? If not tell me and I'll help u

Hope this helped :)

4 0

3 years ago