All categories

2 years ago

Which number-line model represents the sum of 1.25+(-0.75)?

Mathematics

1 answer:

SIZIF [17.4K]2 years ago

5 0

Solution:

A few tips...

Tip-1: If "+" and "-" are multiplied, it gives a result of "-".
Tip-2: If "-" and "-" are multiplied, it gives a result of "+".
Tip-3: If "+" and "+" are multiplied, it gives a result of "-".

Changing the sign of the given equation.

1.25 + (-0.75)
=> 1.25 - 0.75 [Sign changes according to tip-1.]

This could only mean that the arrow would go to 1.25 units forward. Then a second arrow will be drawn to go 0.75 units back.

The graph that matches with the above info is Option C.

You might be interested in

I need help with this math lesson

irinina [24]

Answer:

9,375

Step-by-step explanation:

Each number is multiplied by 5 to get the next number. We can see this by testing multiple number on this set of data.

3*5=15

15*5=75

75*5=375.

Thus, to find the next term in the set of data, we must multiply the last number that we are given by 5.

1875*5=9,375

The next number is 9,375

Hope this helps!

3 0

3 years ago

the equation of line cd is y = 3x − 3. write an equation of a line perpendicular to line cd in slope-intercept form that contain

liberstina [14]

Answer:

The required equation is $y=-\frac{1}{3}x+2$ .

Step-by-step explanation:

The equation of line cd is

$y=3x-3$

Slope intercept form of a line is

$y=mx+b$

Where, m is slope and b is y-intercept.

Slope of line cd is 3.

The product of slopes of two perpendicular lines is -1.

$m_1\times m_2=-1$

$3\times m_2=-1$

$m_2=-\frac{1}{3}$

Therefore slope of perpendicular line is $-\frac{1}{3}$ .

Point slope form of a line is

$y-y_1=m(x-x_1)$

Slope of perpendicular line is $-\frac{1}{3}$ and line passing through the point (3,1).

$y-1=-\frac{1}{3}(x-3)$

$y=-\frac{1}{3}x+1+1$

$y=-\frac{1}{3}x+2$

Therefore the required equation is $y=-\frac{1}{3}x+2$ .

4 0

3 years ago

Read 2 more answers

Solution set for (6y+4)-(3+5y)=9

loris [4]

Y = 8 hoped it helped!

4 0

3 years ago

Write in standard form. a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4 1 PLZ HELP!!!!!

Rama09 [41]

A) 24

24 x 10

b)

103

103 x 10

C) 35

35 x 10

D) 73

73 x 10

E) 28

28 x 10

F) 41

41 x 10

4 0

3 years ago

Ray is boiling water at 99°C. Which of the following best describes 99°C? please help

kolezko [41]

99+99=198 so it is 198°C

7 0

3 years ago