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Vikentia [17]
3 years ago
6

Help plz grades are do tomorr

Mathematics
2 answers:
gulaghasi [49]3 years ago
4 0
-2.2! Would be your answer :) have a good day
Naddik [55]3 years ago
3 0

Answer:

Step 2(1-(-1)=0),-2.2

Step-by-step explanation:

Step 2: 1-(-1)=0 is wrong it should be 2

1-(-1)=1+1=2

The correct solution is -2.2

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Help me out here
lana66690 [7]

How many cups of sugar is needed for 5 Gallons?

3.50

How many cups of sugar is needed for 2 gallons?

1.5

How many cups of sugar would you use for 8 gallons?

6

4 0
3 years ago
A regular heptagon has an apothem of approximately 4.2 ft and a perimeter of approximately 28.0 ft.
inn [45]

Answer:

Step-by-step explanation:

If perimeter is 28 then each side is 28/7=4ft These sides can be seen as the bases of seven triangles that make up the heptagon. The apothem, 4.2ft, is the height of each of those triangles. The total area will be the sum of the areas of those seven triangles.

A=7(bh)/2

A=(7(4)4.2)/2

A=58.8 ft^2

6 0
3 years ago
(8x - 35) solve for x
skad [1K]
You must begin by isolating the x.
1. add -35 to the other side of the equation

2. divide by 8 to get x by itself

Hope this helps!
3 0
3 years ago
Put the following numbers in order from greatest to least 7 030 400, 70 000 200, 78 330, 790 300, 709 400, 70 800
oksian1 [2.3K]

Answer:

70 000 200, 7 030 400, 790 300, 709 400, 78 300, 70 800

Step-by-step explanation:

Greatest is always the number with the most digits.

6 0
3 years ago
Read 2 more answers
The sum of the digits of a two-digit number is 12. The number with the digits reversed is 15 times the original tens' digit. Fin
nika2105 [10]

a-digit\ of\ tens\\b-digit\ of\ ones\\10a+b-the\ number\\10b+a-the\ number\ with\ reversed\ digits\\\\\left\{\begin{array}{ccc}a+b=12&\to b=12-a\\10b+a=15(10a+b)\end{array}\right\\\\\text{Substitute}\\\\10(12-a)+a=15(10a+12-a)\\10(12-a)+a=15(9a+12)\qquad\text{use distributive property}\\(10)(12)+(10)(-a)+a=(15)(9a)+(15)(12)\\120-10a+a=135a+180\\120-9a=135a+180\qquad\text{subtract 120 from both sides}\\-9a=135a+60\qquad\text{subtract 135a from both sides}\\-144a=60\qquad\text{divide both sides by (-144)}\\\\a=-\dfrac{60}{144}

a is negative and it's not a digit.

<h3>Conclusion: Such a number does not exist.</h3>
8 0
3 years ago
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