How do solve a system of equations

Answers

Answer 1

Answer:

you have 3 way which one you want comparison supstitution or the third one

Answer 2
ways of solving a system equationgraphingsubstitutionelimination


Related Questions

What is the surface area of this figure? Enter your answer in the box.

Answers

Answer:

915

Step-by-step explanation:

V=l*w*h V=1/2*b*h*l

V of the rectangular block: 15*5*8 = 600

V of the triangular prism--it's easiest to solve half of it, then just multiply that answer by 2: 1/2*5*7*9 = 157.5

When you double it, it cancels out the 1/2

157.5*2=315

315+600=915

It's 582ft I have noclue what dude is talking about

Step-by-step explanation:

Solve for X. Its geometry, will mark branliest

Answers

Answer:

x=4

Step-by-step explanation:

right triangle calculator works well

find the value of x

16
65
25
108

Answers

Answer: 16

Step-by-step explanation:

Estimate the value of 96.8 x 9.74

Answers

Answer:

1000

Step-by-step explanation:

Let's round!

96.8 can be rounded to 100

9.74 can be rounded to 10

100*10=1000

Hope this helps!

The estimated value of the given product is 970. The given product is (96.8×9.74). This is obtained by using the rounding-off method.

What is estimation?Estimating means finding something close to the actual answer. In other words, it is approximating.Estimating decimal products involves many strategies.General strategy is rounding-off to the nearest value method.

Estimating the given product:

The given product is (96.8×9.74)

Here the first decimal number in the product is 96.8

Since the digit after the decimal point 8 is nearer to the value of 10, it is rounded to 97. I.e., 96.8≅97

And the second decimal number is 9.74

Since the digit after the decimal 7is nearer to the value of 10, it is rounded to 10. I.e., 9.74≅10

So, the product is  97×10=970

Thus, 96.8×9.74≅970 (approx.)

Therefore, the estimated value is 970.

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find p if t=6 years , r=12% and I=$240

Answers

Answer:

the future value would be 473.72 if p is referring to future value

if p is referring to present value it is 121.59

if p is referring to payment it is 58.37

Step-by-step explanation:

you can use spreadsheets to solve this equation using =pmt/=fv/=pv

Step-by-step explanation:

[tex]s .i = \frac{prt}{100} [/tex]

[tex]240 = p \times \frac{12}{100} \times 6[/tex]

[tex]240 = \frac{18}{25} p[/tex]

[tex]240 \div \frac{18}{25} = p[/tex]

[tex]p = 333.3333[/tex]

HELP I NEED IT
NO LINKS!!

Answers

Answer:

option c

Step-by-step explanation:

Area of triangle:

a = 2 and c = 3

base = 6ac²

         = 6 *2 * 3 * 3

        = 108 cm

height = base + 3

          = 108 + 3

          = 111 cm

[tex]\boxed{\text{Area of a triangle = $ \dfrac{1}{2}*base*height$}}[/tex]

                              [tex]=\dfrac{1}{2}*108*111\\\\\\= 54*111\\\\=5994 \ cm^{2}[/tex]

Answer:

5,994 cm²

Step-by-step explanation:

Formula

Area of the triangle = 1/2 x base length x height

Given

Base length = 6ac² cmHeight = 6ac² + 3 cma = 2c = 3

Solving

Area = 1/2 x 6ac² x (6ac² + 3)Area = 1/2 x 36a²c⁴ + 18ac²Area = 9ac² (2ac² + 1)Substitute the values of a and c⇒ Area = 9 x 2 x (2 x 2 x + 1)⇒ Area = 162 (36 + 1)⇒ Area = 162 x 37⇒ Area = 5,994 cm²

What is the value of x? Your answer may be exact or rounded to the
nearest tenth.

Answers

91 because the one on the left tip and top equal the outside always!!! hope this helps!!

The value of x in the given figure is 91 degrees.

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

We need to find the value of x in the given figure.

To find x, firstly we need to find the unknown interior angle.

By Angle sum property the sum of three angles of a triangle is 180 degrees.

a+54+37=180

a+91=180

Now subtract 91 from both sides

a=180-91

a=89 degrees.

Now let us find the value of x which is adjacent to 89 degrees.

The sum should be 180 degrees

a+x=180

89+x=180

Subtract 89 from both sides

x=91 degrees

Hence, the value of x in the given figure is 91 degrees.

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if ey/n + k = t, what is y in terms of e, n, k, and t?

1) y= tn+k/e

2) y= tn-k/e

3) y= n(t+k)/e

4) y= n(t-k)/e​

Answers

Answer:

option 4

Step-by-step explanation:

To write in terms of y

Step 1: subtract k from both sides

[tex]\sf \dfrac{ey}{n} + k - k = t -k\\\\\\\dfrac{ey}{n}=t-k[/tex]

Step 2: Multiply the entire equation by n

[tex]\sf n*\dfrac{ey}{n}=n*(t-k)\\\\\\ey=n(t-k)[/tex]

Step 3: Divide the entire equation by 'e'

[tex]\sf \dfrac{ey}{e}=\dfrac{n(t-k)}{e}\\\\\\\boxed{y =\dfrac{n(t-k)}{e}}[/tex]

Wyatt walks
3
miles each day for
6
days.
Aaliyah walks
4
1
2
miles each day for
6
days.
How many more miles will Aaliyah walk in
6
days than Wyatt?

Answers

Aaliya walks 9 miles farther than Wyatt in 6 days.

Step-by-step explanation:
The distances walked are as follows:
Wyatt: (3 mi/day)(6 days) = 18 mi
Aaliyah: (4.5 mi/day)(6 days) = 27 miles Aaliya walks 9 miles farther than Wyatt in 6 days.

Solve.

18,923,612 - 9,089,689
A. 9,833,023
B. 9,833,923
C. 9,933,923
D. 27,613,301

Answers

Answer:

B

Step-by-step explanation:

9833923

What is 53 times 6987 times 34 plus 67964?

Answers

Answer:

The answer is 12,658,538

Step-by-step explanation:

53 times 6,987 = 370,311

370,311 times 34 = 12,590,574

12,590,574 plus 67964 = 12,658,538

Answer:

12,658,538

Step-by-step explanation:

I used a calculator

-1/5 = w - 4/5 whats the value of w

Answers

[tex]w = \frac{3}{5} [/tex]

“Use distributive property to rewrite each expression.”

3(a + 10)

Answers

Answer:

The answer is

3a+30

Step-by-step explanation:

I hope this helped

You text your friend for 15 minutes on friday night and for 25 minutes on saturday night. what is the percent of increase? (round to nearest whole percent)

Answers

Answer:

66%

Step-by-step explanation:

This doesn't really require any equations, it's just brain work.

15 can be easily divided into 3 parts, each part consisting of 5 units. Here, it will be 5 minutes, then, if it's 5 minutes for each 33%(this number is rounded), then, that means that for 10 minutes, it will be 66%. You can understand this because the amount of increase in minutes is 10 minutes, and if each 5 minutes = 33% of increase, then 33+33=66, so hence, our answer is 66%.

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PLEASE ANSWER WITH SOLUTION PLS
1. A student scored 235 marks in the examination out of 300 marks. Calculate the percentage of marks secured by the student.

2. In an election, Magie N. Hawa got 70% of the total valid votes. If 15% of the total votes were declared invalid and the total numbers of votes is 560, find the number of valid vote polled in favour of Magie N. Hawa.

3. there are 108 girls in a school. 70% of the pupils in the school are boys. How many pupils are there in the school altogether?

Answers

Answer:

See below ↓

Step-by-step explanation:

1.

Score of the student on examination = marks scored / total marksScore = 235/300 [Divide throughout by 5]Score = 47/60 [Using long division, approximate to tenths place]Score = 0.783 [Multiply with 100 to convert decimals → percentage]Score = 78.3%

2.

Total valid votes = 560 x (100 - 15)%Total valid votes = 560 x 0.85Total valid votes = 476Votes for Magie N. Hawa = 476 x 70%Votes for Magie N. Hawa = 333.2 ≅ 333 votes

3.

108 girls = (100 - 70)% of pupils108 / 0.3 = number of pupils360 pupils

what is 1,455.8 x 4,628.9?

Answers

Answer:

6738752.62

Step-by-step explanation:

1,455.8 x 4,628.9=6738752.62

Answer:

6738752.62

hope this helps

Which expression is equivalent to 23−14x+12x−16?

Answers

The Answer is

7 - 2x

Step-by-step explanation:

23 -14x + 12x - 16

(23 - 16) + (-14x + 12x)

= 7 - 2x

hope this help a'lot

The expression equivalent to 23−14x+12x−16 is 7 - 2x

How to find equivalent expressions?

Here we simply take our expression to simplify it.

We start with:

23−14x+12x−16

First, we combine all the terms having x and combine other constant values.

(23 - 16) + (-14x + 12x)

Now we solve the two parts of the above expression we will get,

7 + (- 2x)

Simplifying we get,

7 - 2x

Therefore  the equivalent expression is 7 - 2x

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3 times what number equals 1

Answers

Answer:

1/3

Step-by-step explanation:

essentially saying 3x = 1 where x is the unknown number.

we now solve for x

x= 1/3

Haven baskets manufacturers 83,575 woven baskets a year. determine the minimum sales price Haven baskets must sell each basket for to break even, if the total annual fixed costs are $817,363.50 and the variable cost per basket is $12.17.
$21.95
$24.50
$29.65
$31.25​

Answers

Answer:

Step-by-step explanation:

Givens

Number of baskets sold = 83575

sale price of each = x

Fixed Cost of producing these baskets = 817363.50

Variable cost whis is part of the production of each basket = 12.17

Break Even means the costs = income.

Equation

83575*x = 12.17*83575 + 817363.50       Combine the multiplied facts

Solution

83575x = 1017107.75 + 817363.50          Combine addition on right

83575x = 1834471.25                               Divide by 83575

x = 1834471.25/83575

Answer: x = 21.95

PLEASE HELP 20 POINTS AND BRAINLIEST TO WHOEVER ANSWERS FIRST
sketch the region enclosed by the lines x=0 x=6 y=2 and y=6 find the area of the region

Answers

Answer:

24 units²

Step-by-step explanation:

Given:

Region enclosed by the line x = 0, x = 6, y = 2 and y = 6.

To find:

SketchArea

The area enclosed by these lines can be expressed as:

[tex]\displaystyle \large{\int_0^6 \int_2^6 dy dx }[/tex]

For:

[tex]\displaystyle \large{\int_2^6 dy}[/tex]

Recall:

[tex]\displaystyle \large{\int_a^b dy = [y]_b^a = a-b}[/tex]

Therefore:

[tex]\displaystyle \large{\int_2^6 dy = [y]_2^6 = 6-2 = 4}[/tex]

Now we we have:

[tex]\displaystyle \large{\int_0^6 4dx}[/tex]

Recall:

[tex]\displaystyle \large{\int_a^bk dx = [kx]_a^b = kb-ka}[/tex]

for k = constant

Therefore:

[tex]\displaystyle \large{\int_0^6 4 dx = [4x]_0^6 = 4(6)-4(0) = 24}[/tex]

Hence, the area of region is 24 units²

Use the GCF to factor 9x+54

Answers

Answer:

9(x+6)

Solution:The GCF stands for Greatest Common Factor.We need to factor out the GCF of this binomial (expression with two terms)In order to factor out the GCF, we need to divide both terms by the GCF and place it outside the parentheses, like so:9x+549x÷9=x54÷9=6x+69(x+6)

Hope it helps.

Do comment if you have any query.

What is the distance between (4, 6) and (4, -1)?
O 7 units
O 5 units
O 4 units
O I don't know.

Answers

Answer:

7 units

Step-by-step explanation:

[tex]d=\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]

[tex]d=\sqrt{(4-4)^2+(-1-6)^2}[/tex]

[tex]d=\sqrt{(0)^2+(-7)^2}[/tex]

[tex]d=\sqrt{49}=7[/tex]

Distance = 7 units

I hope this helps!

Find the measure ments of angels 2, 3, and 4

Answers

Angle 3=85 because of opposite angles. Then a straight line is 180 degrees, so subtract 85 from 180, giving us 95. Angles 2 and 3 = 95.

Need help on this. can anyone help please?​

Answers

Answer:

it is B

Step-by-step explanation:

that's because line goes through (0,0)

Please use the picture I provided to help me answer the questions:)

Answers

Answer:

Let x = time in minutes

Let y = water in ounces

Part A

If the water drips at a constant rate of 2 ounces per 5 minutes, then

x = 0, y = 0

x = 10, y = 4

x = 20, y = 8

Part B

Graph is attached.

Please note that the scales on the y and x axes are different.

Part C

[tex]\sf y=\dfrac25x[/tex]

what is the total EXACT area of the composite figure made up of two triangles, a rectangle, and a semicircle.

Answers

Answer:

637

Step-by-step explanation:

rectangle =

12*16*2 = 384

triangle = 12*16/2

= 96

semi circle = pie*hyp^2/2

= pie * (sqrt(12^2+16^2))^2/2

=157

Which of these numbers is the greatest?

0.36
0.63
0.631
0.361

Answers

Answer:

0.631

Step-by-step explanation:

PLEASE HELP

What is the middle term of the product of (x - 4)(x - 3)?
A. x
B. -7 x
C. - x

Answers

Answer:

x^2−7x+12      so -7x

Step-by-step explanation:

In Texas, the average number of tornadoes in May was about 154% of the average number of tornadoes in April. Write and solve a proportion to find the average number of tornadoes that occurred in April.

Answers

The table of the average number of tornadoes is an illustration of proportions

The average number of tornadoes in April is 28

How to determine the average number of tornadoes in April?

From the table, we have:

Average number of tornadoes in May in Texas = 43

From the question, we have:

May = 154% * April

This gives

43 = 154% * April

Express as decimal

43 = 1.54 * April

Divide both sides by 1.54

April = 27.9

Approximate

April = 28

Hence, the average number of tornadoes in April is 28

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What is the scale factor of this dilation?

Answers

Answer:

I am not sure but I thing it is -2.

Step-by-step explanation:

Hope it helps! (Please mark brainliest if it does!)

1.6667

Step-by-step explanation:

the lengths are the same on both sides which makes the triangles equilateral

therefore the scale=5/3

=1.6667

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This graph shows a proportional relational between the distance traveled by Tim on a road trip and the numberof hours for which he traveled.Distance Traveled by Tim250200150Distance (mi)100500106 8Number of HoursWhich statement identifies the correct slope and the correct interpretation of the slope for this situation?50A The slope of the line is1so the distance traveled by Tim is miles every hour.50B The slope of the line is so the distance traveled by Tim is miles every hours.11The slope of the line is50so the distance traveled by Tim is miles every hour. 1 complete the sentences with the correct form of the words in capitals. 1 it is important that try to be relaxed when they talk to their prospective employers. interview 2 having done the same job for five years, alan decided to leave and set up his own business. monotony 3 my brother's salary covers his expenses, but he doesn't save anything at all. life 4. there aren't many in the car factory at the moment. vacant 5 rob felt a certain sense of when an extensive leisure centre was built to his avant-garde design. achieve Calculate the perimeter of the figure 5. 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