All categories

2 years ago

-83 + -30 Integers…………….

Mathematics

1 answer:

anastassius [24]2 years ago

5 0

Answer:

-113

Step-by-step explanation:

Let's use the Decomposition Method.

1) Use this rule: $-a-b=-(a+b)$ .

$-(83+30)$

2) Use the decomposition method.

$83 = 80 + 3$

$30 = 30 + 0$

_____________________

$110 + 3 = 113$

3) After simplification, we have:

$-(83+30)=-113$

4) Therefore, $-83-30=-113$ .

$-113$

You might be interested in

A florist is creating centerpieces for an upcoming event later this evening. She has already been working for two hours and has

saul85 [17]

120 + 15x greater than or equal to 360

5 0

3 years ago

Read 2 more answers

Write the standard form of the line that passes through the given points. Include your work in your final answer. Type your answ

Oksanka [162]

Standard form is ax+by=c

first we use
y-y1=m(x-x1)
a point is (x1,y1)
the slope is m

the slope between the points (x1,y1) and (x2,y2) is
(y2-y1)/(x2-x1)
given
(1,1) and (3,4)
slope=(4-1)/(3-1)=3/2

a oint is (1,1) and slope is 3/2
y-1=3/2(x-1)
y-1=3/2x-3/2
solve for ax+by=c form, a is normally positive and a and b and c are whole numbers
times 2 both sides
2y-2=3x-3
minus 2y
-2=3x-2y-3
add 3
1=3x-2y
3x-2y=2

5 0

3 years ago

Ellen Saver went to her bank. She had a balance of $2,447.67 in her savings account. She withdrew $231.49 and the teller credite

Zielflug [23.3K]

Given:

Beginning Balance: 2,447.67
Less: Withdrawal 231.49
Total 2,216.18
Add: Credit to acct 36.61
Ending Balance 2,252.79

The new balance is $2,252.79

5 0

3 years ago

Read 2 more answers

Are the graphs of the lines in the pair parallel? Explain. y = 3/7x+ 11 –3x + 7y = 13

ankoles [38]

Remember that parallel lines have the same slope.

y=3/7x+11 (in slope intercept form already)

-3x+7y=13 (standard form)

Add 3x to both sides, giving you 7y=3x+13, divide by 7 on both sides, giving

y=3/7x+13/7

Since both equations' slopes' are the same, their graphs will be parallel.

7 0

3 years ago

Solve the linear equation: 3.4 + 2(9.7 – 4.8x) = 61.2

Ganezh [65]

Answer:

- 4

Step-by-step explanation:

(2*(Rationalize(9.7)-Rationalize(4.8x)))==Rationalize(61.2)-Rationalize(3.4)

Rationalize(18.4)-Rationalize(2.8x)

==Rationalize(57.8)

-Rationalize(2.8x)==Rationalize(57.8)-Rationalize(18.4)

x= 38.4÷-2.8

:x= -4

7 0

3 years ago