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Zolol [24]
4 years ago
8

A student solves the equation x+3/2 = 3x+5/5 using the steps in the table.

Mathematics
1 answer:
Svet_ta [14]4 years ago
4 0

The given equation is:

\frac{x+3}{2}= \frac{3x+5}{5}

Cross multiplication would have given us

5(x+3)=2(3x+5)..................(Equation 1)

Now, if we use the multiplication property of equality to multiply both sides of the equation by 10, we will get:

\frac{x+3}{2}\times 10= \frac{3x+5}{5}\times 10

This will become 5(x+3)=2(3x+5), which is the same as (Equation 1) which we had got from cross multiplication.

Thus, out of the given options, the <u>third option</u>, "using the multiplication property of equality to multiply both sides of the equation by 10" is the correct one.

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Linear function 1 has the equation y=16-2. Linear function 2 passes through the points (4,2) and (-4,k). What must be the value
Usimov [2.4K]

Replace with 16 − 2 and simplify. 1 , y = 16−2,2, (4,2), (−4,k), k, x-intercepts

5 0
4 years ago
A bowling alley charges each $3 to rent shoes and $7 per game
iren2701 [21]

Answer:

10

Step-by-step explanation:

just add the to together.

6 0
3 years ago
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JulijaS [17]

Answer:

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3 0
3 years ago
30% of number A is 10 more than 20% of number B. 30% of number B is 35 more than 20% of number A. Find the numbers A and B.
anygoal [31]

Answer:

A = 76.85

B =65.28

Step-by-step explanation:

(30/100)A = 10 + (20/100)B

0.3A - 0.2B = 10 ...... equation (i)

(30/100)B + 35 = (20/100)A

0.2A - 0.3B = 35 ........ equation (ii)

From equation (i)

0.3A = 10 - 0.2B

A = (10 - 0.2b) / 0.3

A = 33.33 - 0.67B ........equation (iii)

Put equation (iii) into equation (ii)

0.2(33.33 - 0.67B) - 0.3B = 35

6.67 - 0.134B - 0.3B = 35

0.434B = 35 - 6.67

B = 28.33 / 0.434

B = 65. 275 = 65.28

Put B = 65.28 into equation (i)

0.3A - 0.2B = 10

0.3A - 0.2(65.28) = 10

0.3A - 13.056 = 10

0.3A = 10 + 13.056

A = 23.056/ 0.3

A = 76.85

5 0
3 years ago
PLEASE IF YOU KNOW THE ANSWER comment below the answer
LenKa [72]

Answer:

46.2 square inches

Step-by-step explanation:

A parallelogram is a quadrilateral (4 sided closed figure) with 2 pair of parallel sides.

The diagram shown is a parallelogram.

Top and Bottom are parallel lines,

both sides are parallel lines (left and right).

The area for a parallelogram is given by:

Area = Base * Height

In the given figure, the base is clearly given as 4.2 inches

The height (perpendicular distance from base) is given as 11 inches.

<em><u /></em>

<em><u>So, basically we do not need the 11.7 inches length of side given.</u></em>

<em><u /></em>

Now, lets compute the area:

Area = base * height = 4.2 * 11 = 46.2 square inches

7 0
3 years ago
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