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skad [1K]
3 years ago
10

What is 3 - 4 - (-4)

Mathematics
2 answers:
Andreas93 [3]3 years ago
7 0

Answe

-5

Step-by-step explanation:

4-(4)=4+4

4+4=8

3-8=-5

valentina_108 [34]3 years ago
6 0

Answer: 3

Step-by-step explanation: Minus a Negative is Plus a positive. This turns the problem into 3-4+4

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If the ratio of the length to the breadth of a rectangle be 5:3 and its perimeter is 144m find the length of the rectangle
Kamila [148]

Answer:

length=45 m (2 sides = 90m)

Step-by-step explanation:

5x +3x=144

8x=144

x=18 (each of the 8 parts of 144 measure 18m)

5(18) + 3(18)=144

90 +54=144

90/2=45 (1 length side)

54/2=27 (1 width side)

The rectangle= 45+45 +27+27 = 144

5 0
3 years ago
Their sum is 6 and their difference is 36<br> Help plz
Ivan

Answer:

Step-by-step explanation:

if you can use negative numbers then   you could use 21 and -15

so

adding them together is  21 + (-15) = 6

and then subtracting  21 - (-15) =

                                     21 + 15 = 36

do you think that would work ?  :/

3 0
3 years ago
Read 2 more answers
Find an equation of the ellipse that has center (-2,0), a minor axis of length 2, and a vertex at (8,0)
Viefleur [7K]

Answer:

Step-by-step explanation:

(-2,0) and (8,0) are horizontally aligned, so the ellipse is horizontal.

6 0
2 years ago
Eight is less than twice what number?<br> 8 &lt; 2n<br> 8 &lt; 2 - n<br> n &lt; 8 × 2<br> 2 &lt; 8n
tamaranim1 [39]

Answer:

8 < 2n

Step-by-step explanation:

The number is n

Twice the number is 2n

So eight is less than twice what number is 8 < 2n

4 0
3 years ago
Solve the equation 8x-2(x+1)=2(3x-1)
Ivahew [28]

Answer:

All that equals 0.

(Both sides are equal)

6 0
3 years ago
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