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Fudgin [204]
3 years ago
9

Heyy!! Can someone help me please!!

Mathematics
2 answers:
abruzzese [7]3 years ago
5 0

Answer:

7x + 14

Step-by-step explanation:

the first thing to do is expand the parentheses/brackets.

3(5x + 2) -2(4x - 4) will be

3(5x) + 3(2) -2(4x) -2(-4)

= 15x + 6 - 8x + 8

collect like terms

15x - 8x + 6 + 8 = 7x + 14

the answer is 7x + 14

nadezda [96]3 years ago
5 0

Answer:

3(5x+2)-2(4x-4)

15x+6-8x+8

15x-8x+6+8

7x+14

You might be interested in
Does the equation y= 4x +3 show a proportional relationship between x and​ y
maxonik [38]

<u>Answer</u>

yes it does.


<u>Explanation</u>

The equation of a straight line is in the form of Y = mX + c, where m is a constant (the gradient) and c is the y-intercept.

The equation above, y= 4x +3 is the equation of a straight line.

y ∝ x

Introducing the constant of proportionality now become y = 4x. When like this the a line is a straight line from the origin but when we add 3 in the equation we have. Y = 4X + 3.

The equation remains proportional. This time the line passes through the point (0,3).

5 0
3 years ago
Dan pays £714.73 a year on his car insurance
LenaWriter [7]

Answer:

The Current Insurance cost = $685.43

Step-by-step explanation:

Given that Dan pays £714.73 a year on his car insurance.

Reduced Percentage = 4.1%

so

Reduced Amount =  4.1% × 714.73

                             = [4.1 / 100] × [714.73]

                             = 0.041 × 714.73

                             = $29.30

The current cost can be calculated by subtracting the reduced amount of 29.30 from 714.73.

so

Current Insurance cost = 714.73 - 29.30

                                       = $685.43

Therefore, the Current Insurance cost = $685.43

5 0
3 years ago
A rectagle has a height of 5x and a width of x+2<br><br>area=???​
astra-53 [7]

Answer: Area=5x^2+10x

Step-by-step explanation:

The area of a rectangle:

a=h×w

a=5x(x+2)

a=5x × x+5x × 2

a=5x^2+10x

-Result:

a=5x^2+10x

5 0
3 years ago
A cylindrical waste can has a volume of 5, 667.7cubic inches and its base has a radius of 9.5 inches. Find the height of the was
butalik [34]

Answer:

height of the waste is 20.0 inches.

Step-by-step explanation:

given data

volume = 5, 667.7cubic inches

radius = 9.5 inches

solution

we use here volume of a cylinder is express as

V = πr²h     .................1

put here value

5667.7 = (3.14) × (9.5²) × h

solve it we get

h = 20 inch

so height of the waste is 20.0 inches.

4 0
3 years ago
Can somebody help me
nata0808 [166]

Answer:

AB ≈ 3.14 ft

Step-by-step explanation:

The arc AB is calculated as

AB = circumference of circle × fraction of circle

    = πd × \frac{45}{360} ( where d is the diameter )

    = 8π × \frac{1}{8}

   = π

   ≈ 3.14 ft ( to 2 dec. places )

8 0
3 years ago
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