How do you tell if a number is a solution of an equation?

Answers

Answer 1
Substitute the number for the variable in the equation.
Simplify the expressions on both sides of the equation.
Determine whether the resulting equation is true. If it is true, the number is a solution. If it is not true, the number is not a solution.
Answer 2

Substitute the number for the variable in the equation. Simplify the expressions on both sides of the equation. Determine whether the resulting equation is true. If it is true the number is a solution


Related Questions

Jon noeds 1/3 cup of
chocolate chips to make
cookies and 3/4 cup to make
brownies. How many cups
does she need altogether?

Answers

Answer: 1 1/12

Step-by-step explanation:

1/3 + 3/4 =

1/3 x 4= 4/12

3/4 x 3 = 9/12

9/12 + 4/12 = 13/12 = 1 1/12

Monomials!!!!!! HELP!!!!!!

-7m - m^2 + 4m^2 - 3m

Answers

[tex][Hello,BrainlyUser][/tex]

Answer:

[tex]3m^2-10m[/tex]

Step-by-step explanation:

Let's simplify step-by-step.

[tex]-7m-m^2+4m^2-3m[/tex]

Combine Like Terms:

[tex]=-7m+-m^2+4m^2+-3m[/tex]

[tex]=(-m^2+4m^2)+(-7m+-3m)[/tex]

[tex]=3m^2+-10m[/tex]

[tex][CloudyBreeze][/tex]

Answer:

[tex]-10m+3m^2[/tex]

Step-by-step explanation:

[tex]-7m - m^2 + 4m^2 - 3m[/tex]

[tex]-7m^1 - 1m^2 + 4m^2 - 3m^1[/tex]

[tex]-7m^1-3m^1=-10m[/tex]

[tex]-1m^2+4m^2=3m^2[/tex]

[tex]-10m+3m^2[/tex]

Hope this helps!

Help me, please. I will be giving brainlyist to the first person to answer

Answers

Answer:

Mr Batista should bring more 82 cups.

Step-by-step explanation:

there are 36 cups in 1 package.for 12 packages: [ 12 * 36 ] = 432 cups - this many cups he brought.

solve:

→ 514 - 36(12)

→ 514 - 432

→ 82

He needs more 82 cups and did not bring enough.

In a recent vote between two nominees, 0.4 of the registered voters chose Candidate A and of the registered voters chose Candidate B. What fraction of the total registered voters participated in the election?

Answers

Answer:

A. 13/20

Step-by-step explanation:

Lisa and complains a lot about her drink being flat infact local restaurant manager can consider banning her for making spurious complaints but then if he wondered if you should put forward for quality control job with the fizzy drinks company . if Lisa says a drink is flat how likely is she to be correct how good is he sad setting whether or not a drink is flat would Lisa be good at the quality controlled job justify your answer​

Answers

A) The probability of Lisa being correct if she says a drink is flat is; 83.3%

B) The level of Lisa's accuracy in detecting a drink that is flat is; 83.3%

C) The reason why Lisa should be considered for to job is because; she has a high accuracy level and is not just complaining unnecessarily.

How do you interpret the right probability?

From the table showing Lisa's response to the last 100 drinks she bought attached, we see that;

A) When the drink was flat, she complained 5 times out of 6. Thus, if the drink is flat, the probability of her complaint being correct = 5/6 = 83.3%

B) Since she is 83.3% correct in detecting whether a drink is flat, then we can say that Lisa is 83.3% very good at detecting whether a drink is flat.

C) It would be good in recommending Lisa for the quality control job because she only complained 3 times out of 94 times that the drink was not flat while she was correct 5 out of 6 times when the drink was flat. Thus, she has a high accuracy level and is not just complaining unnecessarily.

Read more about complaints at; https://brainly.com/question/10111803

Angle 3 and 4 are supplementary angles if m 4=100^0 and m 3=(11x)^0 find the value of x

Answers

Answer:

x = 7.272727...

x ~= 7.27 (nearest hundredth)

x ~= 7.3 (nearest tenth)

Step-by-step explanation:

"Supplementary" means the angles add up to 180°.

100 + 11x = 180

11x = 80

x = 7.272727...

Which expression is the best estimate of 1.25 + (-2.69)?

Answers

Answer: 1+(-3)

Because you round the numbers, anything below 5 is rounded to 0 and anything 5 or above is rounded up. like 1.2 is 1, and 5.7 is 6.

Choose an equivalent expression. * 8(3+5x)+7x +4

Answers

Answer:

28+47x

Step-by-step explanation:

distribute the 8 throughout the 3+5x

this leaves you with

24+40x+7x+4

combine your like terms

28+47x


Which angles are corresponding angles?
Check all that apply.
5.
8
6
7
4
1
3.
2

Answers

Answer:

D and E is the answer

Answer:

F ,8 and 1

Step-by-step explanation:

8 is correspond with the number 1

The number of stores opened by a coffee company can be modeled by the exponential function graphed on the grid,
where x is the number of years since 1992.
Coffee Stores
y
2,400
2,200
2,000
1,800
ñ 1,600
6 1,400
Number of Stores
1,200
1,000
800
600
400
200
X
0
1 2 3 4 5 6 7 8 9 10
Number of Years Since 1992
Based on the graph, which statement does NOT appear to be true?

Answers

Answer:since 1992 the coffee company has opened 250 stores each year!

Step-by-step explanation:

The statement Not True Since 1992 the coffee company has opened 250 stores each year.

What is Exponential Function?

A relation of the form y = [tex]a^x[/tex], with the independent variable x ranging over the entire real number line as the exponent of a positive number a.

As, after the first year approximately 100 stores were opened.

Between the first and second year approximately 100 stores were opened,

and, between the second and third year approximately 200 stores were opened, etc.

Thus, the incorrect option here:

Since 1992 the coffee company has opened 250 stores each year.

Learn more about Exponential Function here:

https://brainly.com/question/14355665

#SPJ2

Solve for x. NEED ANSWER!!!​

Answers

Answer:

x = 16

Step-by-step explanation:

The 3 exterior angles of a triangle sum to 360°

sum the exterior angles and equate to 360

5x + 12 +10x - 37 + 9x + 1 = 360 , that is

24x - 24 = 360 ( add 24 to both sides )

24x = 384 ( divide both sides by 24 )

x = 16

Answer:

x = 16

Step-by-step explanation:

The 3 exterior angles of a triangle sum to 360°

sum the exterior angles and equate to 360

5x + 12 +10x - 37 + 9x + 1 = 360 , that is

24x - 24 = 360 ( add 24 to both sides )

24x = 384 ( divide both sides by 24 )

x = 16

7. Eddie buys 3 apples, 5 bananas, and 7 carrots from the market. What is the ratio of
bananas to carrots?
a. 7 to 5
b. 5 to 7
c. 3 to 7
d. 7 to 3

What is the ratio of bananas to carrots

Answers

Answer:

b. 5 to 7

Step-by-step explanation:

just put the amount of the bannanas to carrots

find the area of the hexagon

Answers

Answer:

78

Step-by-step explanation:

7*10 = 70

4*2 = 8

Work out the perimeter of the shape

Answers

Answer:

34cm

Step-by-step explanation:

2+1+8+3+8+3+2+7

Find the value of X. Round to the nearest 10th. Diagram is not on the scale

Answers

Answer:

The value of X is 6. X=6

Step-by-step explanation:

There are 12 birds sitting on a wire. Four-sixths of the birds are black. How many black birds are sitting on the wire?

Answers

Answer:

8

Step-by-step explanation:

4/6 out of 12 is 8,so There are 8 black birds.

Hope this helps

The function f(x)=18000(0. 52)x represents the value in dollars of a vehicle x years after it has been purchased new. What is the average rate of change in value per year between years 4 and 8?.

Answers

[tex]slope = m = \cfrac{rise}{run} \implies \cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby \begin{array}{llll} average~rate\\ of~change \end{array}\\\\[-0.35em] \rule{34em}{0.25pt}\\\\ f(x)=18000(0.52)^x \qquad \begin{cases} x_1=4\\ x_2=8 \end{cases}\implies \cfrac{f(8)-f(4)}{8-4} \\\\\\ \cfrac{[18000(0.52)^8]~~ - ~~[18000(0.52)^4]}{4}~~\approx ~~\cfrac{-1219.86}{4}~~ \approx ~~ -304.97[/tex]

notice, the rate is negative, because the car is losing value as the time moves on.

What unit of measurement would you use to measure the length of your foot?

Answers

Answer:

centimeter

Step-by-step explanation:

Note: Please do not answer this question by putting links!

A number cube has 5 green sides and 1 orange side.
(INPUT ANSWERS AS FRACTIONS)


1. What is the probability of 2 green outcomes and 2 orange outcomes when you roll the number cube 4 times?​

Answers

The probability of 2 green outcomes and 2 orange outcomes when you roll the number cube 4 times is 0.116.

How to find the probability?

Assuming that it is a fair number cube, the probability of getting green is given by the quotient between the outcomes that give the color green and the total number of outcomes.

We know that there are 5 green sides (so 5 outcomes give the color green) and the dice has 6 sides (so there is a total of 6 outcomes). Then the probability of rolling green is:

P = 5/6.

The probability of rolling orange is computed in the same way, 1 outcome gives the color orange and there are 6 outcomes in total, so the probability of getting orange is:

Q = 1/6.

Now, let's assume that when we roll four times we get:

green - green - orange - orange.

The probability of that is given by the product of the individual probabilities, it is:

p = P*P*Q*Q = (5/6)*(5/6)*(1/6)*(1/6).

Now, we also need to take in account all the possible permutations, these are:

green - green - orange - orange.green - orange - green - orange.green - orange - orange - greenorange - green - green - orangeorange - green - orange - greenorange - orange - green - green.

So there are 6 permutations, to get the total probability of rolling 2 green outcomes and 2 orange outcomes, we need to multiply this number by the probability we got above.

Probability = 6p = 6* (5/6)*(5/6)*(1/6)*(1/6) = 0.116

If you want to learn more about probability, you can read:

https://brainly.com/question/251701

In a random sample of 64 children who received a new antibiotic for an infection 52 of the children had positive results within 12 hours. Find a 95% confidence interval for the proportion of children with infections who will experience positive results within 12 hours when treated with this antibiotic.

Answers

Answer:

2•58 ans if you solve prperly

Please help me solve this i will give a BRAINLY

Answers

Answer:

26 : 63

Step-by-step explanation:

Answer:

26 over 63

i think i hope

Step-by-step explanation:


Determine the yertices of the triangle whose sides lie on the lines:
x + 3y = 13, x- y =1, and 5x - y =-15

Answers

Answer:

4,3,

-2,5

-4,-5

Step-by-step explanation:

A large cheese pizza costs $7.50. Diego has $40 to spend on pizzas. How many large cheese pizzas can he afford?

Answers

Answer:

5

Step-by-step explanation:

40 / 7.50 = 5.333

since he can't by a third of a pizza, he can afford 5 large cheese pizzas

HOPE THIS MAKES SENSE & HELPS!!!

Answer: 5 pizzas

Step-by-step explanation:

We can do the floor of 40/7.5.

40/7.5 = 5.33333.

As he cannot buy 1/3 of a pizza, he can afford 5 pizzas.

PLEASE HELP ME ANSWER THIS I WILL GIVE BRAINLIEST FOR SMARTEST ANSWER!!!SHOW ALL WORK TOO

Answers

so we’re given $5 for the entry free, $2.50 per pound of blueberries, and $2 per pound of apples.

we clearly are looking for the equation that represent how Eva pays.

so the equation is 5(2.50b + 2a) because to calculate her total we need to multiply the $5 entry fee with the pounds per blueberries and apples. therefore giving us 5(2.50b + 2a).
5 I hope this help !!

Determine if the triangles are congruent. If so, identify a theorem or postulate that proves them congruent.

Answers

Answer: a. ASA

Step-by-step explanation:

They are congruent by ASA beacuse 1 angle and 1 side are given to be congruent and there is also a pair of vertical angles that are congruent.

1) Solve the inequality -60x > 10.
?
?

Answers

Answer:

[tex]\huge\boxed{\bf\:x < -\frac{1}{6} }[/tex]

Step-by-step explanation:

[tex]-60x > 10[/tex]

Let's bring -60 to the left side of the inequality. Then, the inequality sign will also get reversed.

[tex]x < - \frac{10}{60}[/tex]

On simplifying / dividing the inequality by 10 (common factor) ...

[tex]\boxed{\bf\:x < -\frac{1}{6} }[/tex]

[tex]\rule{150}{2}[/tex]

Hello.

This is a one-step inequality, meaning that we can solve it in 1 step.

This step is:

Divide both sides by -60

Goal:

Isolate the variable (x)

Solution:

-60x>10-x>0.167x<0.167

Why was the inequality sign flipped?

When we divide both sides by a negative number, we flip the inequality sign.

I hope it helps.

Have an outstanding day. :)

[tex]\boxed{imperturbability}[/tex]

Find the average distance of the orbit from the Sun to the nearest whole number. Use the Cube Root table provided
Quaoar is an object orbiting in an outer area of the solar system called the Kuiper belt. It is estimated to orbit the Sun once every 285 years.
O = 87 AU
O - 43 AU
O - 34 AU
O = 83 AU
*60 AU

Answers

We can estimate that the average distance is 43 AU, so the correct option is the second one.

How to find the average distance?

For an object orbiting the sun, the average distance of the orbit is:

[tex]r =\sqrt[3]{ (\frac{T }{2*3.14})^2*G*M }[/tex]

Where:

T is the period of the orbit, in this case, 285 years = 285*(3.154*10^7 s)G is the gravitational constant = 6.7*10^(-11) N*m/kgM is the mass of the sun = 1.989*10^30

Replacing all that in the average distance equation we get:

[tex]r =\sqrt[3]{ (\frac{285*(3.154*10^7 s) }{2*3.14})^2*6.7*10^{-11} N*m/kg* 1.989*10^{30} \\}\\\\r = 6.387*10^{12}m[/tex]

Now, we know that:

1 AU = 1.49*10^(11) m

Then:

[tex]r = (6.487*10^{12}/1.49*10^{11}}) AU = 43.5 AU[/tex]

Rounding to the whole number below, we get 43 ua, so the correct option is the second one.

If you want to learn more about orbits, you can read:

https://brainly.com/question/11996385

What is the area of this figure?
48 cm
10 cm
7 cm
23 cm
6 cm
23 cm
7 cm
18 cm
square centimeters

Answers

852 cm^2; subdivide the figure into rectangle and use the formula length times width for each individual rectangle. Add the areas together for the total area

Answer:

852 cm²

Step-by-step explanation:

Separate the figure into 3 rectangles by drawing vertical lines from the vertices.

Area of a rectangle = width x length

Total area = (18 x 23) + (23 x (23 - 7)) + (7 x 10)

                 = 414 + 368 + 70

                 = 852 cm²

Find the value of x

Answers

Answer:

17 degrees

Step-by-step explanation:

94 = 60 + 2x

94 - 60 = 2x

34 = 2x

x = 17 degrees

The length of a rectangle is 4m longer than its width.
If the perimeter of the rectangle is 56m, find its length and width.

Answers

Call the length a, the width b

Perimeter = (a+b) x 2

We have : a - b = 4 and (a+b) x 2 = 56

-> a + b = 28
-> a - b = 4

=> a+b + (a-b) = 32
2a = 32
a = 16
b = 56:2-16 = 12

So, the length = 16 and the width = 12

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