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2 years ago

8x=5. ————

Mathematics

1 answer:

dezoksy [38]2 years ago

5 0

1) 7(x-2)=x+16. 1) Given
2) 7x-14=x+6 2) Distributive Property of Equality
3) 7x-14+14=x+16+14. 3) Addition P.O.E
4) 7x=x+30. 4) Simplify
5) 7x-x=x+30-x. 5) Subtraction P.O.E
6) 6x=30. 6) subtraction P.O.E
7) 6x/6=30/6. 7) Division P.O.E
8) x=5. 8) Simplify

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If $40 equals 15 gallons, how much money is in 3 gallos? this is due soon pls help

kiruha [24]

Answer:

Step-by-step explanation:

$40:15 gallons

:3 gallons

So first you say what did you do to 15 to get three?

15÷3= 5

Now you divide forty by five since that is what you did to 15 to get three.

40÷5= 8

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=12%20%5Cfrac%7B3%7D%7B6%7D%20%2B%2014%5Cfrac%7B4%7D%7B6%7D%20" id="TexFormula1" title="12 \fra

Vikki [24]

27 1/6 or 163/6 or 27.16

6 0

2 years ago

Read 2 more answers

The circumference of a circle is 19π m. What is the area, in square meters? Express your answer in terms of \piπ.

lianna [129]

Answer:

90.25π

Step-by-step explanation:

The circumference of circle is 2πr, or in other words the diameter times π.

The area of a circle is πr^2.

19π is the circumference of this circle.

So, 19 is the diameter, and 9.5 the radius.

The area if (9.5^2)π.

9.5^2=90.25

So, in terms of π, the area of the circle is 90.25π.

7 0

3 years ago

Помогите с решением Матриц

vivado [14]

Answer:

я не знаю потому что я не говорю по русски

Step-by-step explanation:

5 0

2 years ago

Christina wants to compute the cost of tiling the floor in her bathroom. The floor measures 7 feet 6 inches by 8 feet 10 inches.

ArbitrLikvidat [17]

Answer:

Two boxes will cost $\$35.95\cdot 2=\$71.9.$ The cost of one tile is approximately $\dfrac{\$71.9}{67}\approx \$1.08.$

Step-by-step explanation:

Note that 1 ft = 12 in, then

$7\ ft\ 6\ in=7\cdot 12+6\ in =90\ in,\\ \\8\ ft\ 10\ in=8\cdot 12+10\ in=106\ in.$

The area of the floor is

$90\cdot 106=9540\ in^2.$

Now

$1\ ft^2=144\ in^2,$

then

144 sq. in - 1 tile,

9540 sq. in - x tiles.

Mathematically,

$\dfrac{144}{9540}=\dfrac{1}{x},\\ \\x=\dfrac{9540}{144}=66.25$

tiles is needed to cover the floor (67 full tiles).

Each box of tiles contains 45 tiles, so Cristina has to buy 2 boxes. These two boxes will cost $\$35.95\cdot 2=\$71.9.$ The cost of one tile is approximately $\dfrac{\$71.9}{67}\approx \$1.08.$

7 0

3 years ago