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3 years ago

What is -31+-4x=-5+-5(1+5x)

Mathematics

1 answer:

aliya0001 [1]3 years ago

5 0

Answer:

x=1

Step-by-step explanation:

-31+(-4x) = -5+(-5)(1+5x)

-31-4x = -5+(-5)+(-25x) : Adding a negative is the same as subtracting and I distributed the -5

-31 = -5 + -5 -21x : added 4x to both sides

-31 = -10 -21x : added -5 and -5

-21 = -21x : added 10 to both sides

x=1 : divided both sides by -21, division of 2 negatives is a positive

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On Monday, Takira counted 75 splatters of bird droppings on her car. On Tuesday afternoon, she counted 21 more. What is the perc

Law Incorporation [45]

Answer:

28%

Step-by-step explanation:

percent change in the number of bird droppings = increase in splatters / splatters counted on Monday x 100

$\frac{21}{75}$ x 100 = 28%

3 0

3 years ago

Please help ASAP!!!!

DerKrebs [107]

Anwser:

y = 2x

Examples:

1.1= 1
2.2= 4
3.3= 9
4.4= 16
5.5= 25

6 0

4 years ago

Can someone help me plz

natali 33 [55]

Answer:

Step-by-step explanation:

correct equation is n - 31 = 52

3 0

4 years ago

Find the perimeter of the figure to the nearest hundredth. Ps: it is not 30

frutty [35]

Answer:

Perimeter = 36.8 ft

Step-by-step explanation:

Step 1: Add the straight sides together

3+3+3+3+3+3 = 18 ft

Step 2: Find the perimeter of the semi-circles

The formula for the perimeter of semi-circle: 1/2 π × d

Diameter = 12 - 3 - 3 = 6, because the whole length is 12 minus the 6 ft of other stuff.

Now, 1/2π * 6 = 9.4 ft

But, there are two semi-circles so it will be 9.4 + 9.4 = 18.8 ft

Step 3: Add all of them

18 + 18.8 = 36.8 ft

8 0

3 years ago

At a sport clubhouse the coach wants to rope off a rectangular area that is adjacent to the building. He uses the length of the

Furkat [3]

Answer:

w < 8 meters ( w must be greater than 0 because length cannot be 0)

Step-by-step explanation:

One side with building is 23 meters, the other opposite side also will be 23 meters (with rope).

Let width (remaining 2 sides) be "w", he has AT MOST 39 meters of rope, so we can write:

Rope Needed = 23 + 2w < 39

Simplifying:

$23 + 2w < 39\\2w < 39 - 23\\2w < 16\\w < 8$

The range of possible values of w is $w$ meters (of course w has to be greater than 0)

5 0

4 years ago