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GarryVolchara [31]
3 years ago
13

For what value of x is the equation 8x-2(x-7)=20 true?

Mathematics
1 answer:
sukhopar [10]3 years ago
6 0

Answer:

x = 1

Step-by-step explanation:

Given

8x - 2(x - 7) = 20 ← distribute parenthesis on left side

8x - 2x + 14 = 20, that is

6x + 14 = 20 ( subtract 14 from both sides )

6x = 6 ( divide both sides by 6 )

x = 1

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Harman [31]
The answer to 70 -7•7 is 21
5 0
3 years ago
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The listing agent for a house receives 20% of the agency fee as commission when a sale
Pie

Answer:

3000

Step-by-step explanation:

250000*.06=15000*.2=3000

3 0
2 years ago
The area of a trapezoid is 18 square meters. One base is 3 meters long and the other is 6 meters long. Find the height of the tr
aleksley [76]

Answer:

height = 4 meters

h = 2A / ( a +  b )

Step-by-step explanation:

Let A represent the area of the trapezoid, h, the height a, the length of one base and b, the length of the other base

Area of a trapezoid, A = ( a + b)* h / 2

Now let's slot in the given values

A= 18 sq meters

a = 3 meters

b = 6 meters

we have;

18 = ( 3 + 6 ) * h /2

18 = 9 * h /2

Cross multiply

18*2 = 9h

36 = 9h

divide both sides by the coefficient of h (9)

4 = h

therefore, h = 4 meters

To solve for h without substituting

From A = ( a + b )* h /2

cross multiply

2*A = ( a + b )* h

divide both sides by ( a + b )

2A / ( a + b ) = h

therefore,

h = 2A / ( a +  b )

8 0
3 years ago
What two numbers multiply to -52 and add up to 24
harkovskaia [24]

Answer:

-2 and 26

Step-by-step explanation:

Multiply to -52:

-2 * 26= -52

Add to 24

-2+26= 24

8 0
2 years ago
Read 2 more answers
Please Answer These!
maxonik [38]
79.30 ---- 100%
The while store is discounted by 12% So subract 12 from 100

100-12 = 98

We have to figure out what 88% is

79.30 ---- 100%
X ------------ 88%

Cross Multiply

79.3× 88 = 100x

6978.4 = 100X

69.784 is without taxes

69.784 = 100% {100% because it is the total price.}

69.784 = 100%
X --------- 6.25%

Cross Multiply

69.784 × 6.25 = 100X
436.15 = 100 X
X = 4.3615


69.784 + 4.3615
74.15 is the answer


5 0
3 years ago
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