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Ber [7]
3 years ago
10

HELPPP LAST QUESTION!!!!! WILL UPVOTE

Mathematics
1 answer:
RUDIKE [14]3 years ago
6 0
When you multiply the equation 1 by 1, then it won't change and will be:
<span>6x − 2y = 3
Now, when you'll add 2nd equation to it, then, it is:
= 11x + y = 7

In short, Your Answer would be Option D) </span><span>Show that the solution to the system of equations 11x + y = 7 and 5x + 3y = 4 is the same as the solution to the given system of equations

Hope this helps!</span>
You might be interested in
If a right isosceles triangle has an area of 192 cm, what is the height of the triangle?
xxMikexx [17]

The height of the triangle is 19.596 centimeter, if a right isosceles triangle has an area of 192 square centimeters.

Step-by-step explanation:

The given is,

               Area of right isosceles triangle is 192 square centimeters

Step:1

             Formula for area of  right isosceles triangle is,

                                       A=\frac{1}{2} a^{2}............................(1)

            Where, a - Sides of triangle

                         a = h = b

            Here, h - Height of triangle

                      b - Base of triangle

           From given,

                    Area, A = 192 square centimeters

           Equation (1) becomes.

                              192=\frac{1}{2} a^{2}

                                a^{2} = (2)(192)

                                     = 384

                                a^{2} = 384

          Take square root on both sides,

                                 a=\sqrt{384}

                                  a = 19.596 centimeters

         Height of right isosceles of triangle, a = h = 19.596 centimeters

Result:

        The height of the triangle is 19.596 centimeter, if a right isosceles triangle has an area of 192 square centimeters.

7 0
4 years ago
Two brothers, richard and andrew, share a sum £30 in the ratio 3:7. how much does each brother get?
Elina [12.6K]

Answer:

£9,£21

Step-by-step explanation:

richard:andrew=3:7

3+7=10

£30÷10=£3

richard=3×£3=£9

andrew=7×£3=£21

5 0
3 years ago
Read 2 more answers
MATH WORD PROBLEM
Sloan [31]

cost of one regular admission ticket = $ 10

cost of one senior citizen ticket = $ 5

<h3><u>Solution:</u></h3>

Let "r" be the cost of one regular admission ticket

Let "s" be the cost of one senior citizen ticket

Given that,

<em><u>On day 1 you sold 30 Regular Admission tickets and  20 Senior Citizen tickets for a total of $400</u></em>

So we can frame a equation as:

30 Regular Admission tickets x cost of one regular admission ticket + 20 Senior Citizen tickets x cost of one senior citizen ticket = $ 400

30 \times r + 20 \times s = 400

30r + 20s = 400 ----- eqn 1

<em><u>Day two you sell 40 Regular Admission tickets and only 10 Senior  Citizen tickets for a total of $450</u></em>

So we can frame a equation as:

40 Regular Admission tickets x cost of one regular admission ticket + 10 Senior Citizen tickets x cost of one senior citizen ticket = $ 450

40 \times r + 10 \times s = 450

40r + 10s = 450 ---- eqn 2

<em><u>Let us solve eqn 1 and eqn 2 to find values of "r" and "s"</u></em>

Multiply eqn 2 by 2

80r + 20s = 900 --- eqn 3

Subtract eqn 1 from eqn 3

80r + 20s = 900

30r + 20s = 400

(-) ---------------------

50r = 500

<h3>r = 10</h3>

Substitute r = 10 in eqn 1

30r + 20s = 400

30(10) + 20s = 400

300 + 20s = 400

20s = 100

<h3>s = 5</h3>

<em><u>Thus we have:</u></em>

cost of one regular admission ticket = $ 10

cost of one senior citizen ticket = $ 5

4 0
4 years ago
Ada buys 3 pounds 8 ounces of ham and 4 pounds 2 ounces of cheese for a party. How much ham and did she buy ?
Lesechka [4]
C) 7 pounds 10 ounces 7 5/8

3 ponds + 4 pounds = 7 pounds
8 ounces + 2 ounces = 10 ounces
16 ounces in a pound
7 pounds 10/16 ounces
reduce '10/16' to '5/8'
7 0
3 years ago
Look at image. reflection across x=1​
elena-14-01-66 [18.8K]

Answer:

A' would be at (0,-4)

B' would be at (-2,1)

C' would be at (-2,-3)

Step-by-step explanation:

A' would be at (0,-4)

B' would be at (-2,1)

C' would be at (-2,-3)

5 0
3 years ago
Read 2 more answers
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