Which of these is a mathematical expression?
A
B
4 - 3r

C
4 - 3r = 1

D
“Happily ever after”

Answer:

Step-by-step explanation:

9 tins of cat food feed her 2 cats for 18 days

Step-by-step explanation:

Sally has 2 cats

food eaten by 1 cat each day =

food eaten by 2 cat each day=  tins

sally buys 9 tins of cat food

then

tins  required in = 1 day

1 tin required in

i.e  1 tin required in  2 days

9 tin  required  for = 9×2 = 18 days

hence ,  9 tins of cat food feed her 2 cats for 18 days

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Sue has 2 cats. Each cat eats 1/4 tin of food each day. Sue buys 8 tine of cat food. Has sue got enough cat food to feed her 2 cats for 14 days?

Answer:

8 √ 5

Step-by-step explanation:

Since the wall's base is b = 1.0b in length, a quart of paint will cover a wall that is 8 feet by 1.0b feet in size.

In algebra, an equation is a document that presents the equality among both two expressions. It contains a set, constants, and mathematical calculations such as addition, subtraction, cell growth, and division. The goal of trying to solve an equation is really to find the value or beliefs of the variables that make the calculation true. Equations are used to model a broad variety of phenomena in science, architecture, economics, among other fields

given

The base length of the rectangular wall that Jasmine wishes to paint is represented by the variable "b" in the equation 8b/100. This equation is used by Jasmine to calculate how much wall space one quart of paint will fill. By dividing 8b by 100, Jasmine can find the number of quarts required to paint the entire wall.

To solve the equation for "b", we need to isolate the variable on one side of the equation. We can do this by multiplying both sides of the equation by 100/8 or 12.5, which gets us:

b = (100/8) / (100/8) * 8b/100

b = 12.5 * 8b/100

b = 1.0b

Since the wall's base is b = 1.0b in length, a quart of paint will cover a wall that is 8 feet by 1.0b feet in size.

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The complete question is:- Jasmine is redecorating her bedroom and wants to paint one wall with an accent color. She has 1 quart of accent color paint and is trying to figure out how much of the wall the quart will cover. The walls in Jasmine's room are 8 feet tall. The area of the rectangular wall can be represented by the expression 8b, where b is the length of the base.

The paint container says that each quart will cover an area of 100 square feet, so Jasmine uses the equation b the area of wall that the quart of paint will cover.

In this equation, the variable b is by Because division is the opposite of to get the variable by itself on one side of the equation. In other multiplication, we'll divide by words, we'll the variable. 8b 100 =

Remember that the property of equality states that we must both sides of the equation by to keep a balanced equation.

the width of a rectangle is measured at 6 cm, its length at 10 cm, and its area at 60 cm2.

An example of a quadrilateral is a rectangle, which has four vertices that are all 90 degrees apart and parallel sides that are equal to one another. As a result, it is sometimes referred to as an equiangular quadrilateral. The rectangle is a 2D shape with 4 sides, 4 corners, and 4 right angles. The length of each pair of the diagonal sides of a rectangle is equal, with one pair being longer than the other. If all the sides of a rectangle were the same size, the shape would be referred to as a square.

given

Consequently, the rectangle has a length of 10 cm and an area of 60 cm2.

Since,

Area of a rectangle equals length times width

=60=10*breadth

width is 60/10.

= 6 cm in breadth.

the width of a rectangle is measured at 6 cm, its length at 10 cm, and its area at 60 cm2.

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Answer:

C and B

Step-by-step explanation:

31. Thrice means 3 times as much. Let's call Rahul and Shivam's present ages r and s respectively. We can write:

r = 3s

r + 8 = 1 + (s + 8) * 2

Simplifying the second equation gives us r + 8 = 2s + 17. When we substitute r = 3s into the second equation we get 3s + 8 = 2s + 17 which gives us s = 9. This means r = 9 * 3 = 27 so Rahul's age 8 years before the present is 27 - 8 = 19.

32. Let's call Ravi and Kishan's ages r and k. We can write:

r + k = 69

r - 8 = 2(k - 8) - 4

Rewriting the first equation gives us r = -k + 69 and when we substitute this into the second equation we get -k + 69 - 8 = 2k - 16 - 4. Solving for k we get k = 27 which means r = 42. 42 - 27 = 15.

At least 5 bags of gummy bear bags are needed for each person to get 5 gummy bears.

The given parameters;

The number of gummy bear bags needed to share 5 gummy bears to each person is calculated as follows;

let the number of gummy bears bag = x

\(\frac{9x}{8} = 5\\\\9x = 40\\\\x = \frac{40}{9} \\\\x = 4.4\)

Thus, at least 5 bags of gummy bear bags are needed for each person to get 5 gummy bears.

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To order the numbers from least to greatest, we first plot them on the number line to determine their order.

Now we see that the numbers ordered from greatest to least are

24, 17, 9, 0, -8, -13

Answer:

Step-by-step explanation:

Step 1:First Make 3/4 and 5/6 into like fractions.Find the L.C.M of 4 and  

            6,which is 12.

            3*3/4*3=9/12

             5*2/6*2=10/12

Step 2:Subtract 9/12 from 10/12,which is 1/12.

Answer:

i think it is 2n +18

Step-by-step explanation:

4n - 12 + 6 +2n

so 4n -2n +12 +6 =

2n +18

Answer:

6n-6

Step-by-step explanation:

4(n-3) + 2(3+n)

1. Multiply 4 by n and 4 by 3  and Multiply  2 by 3  and 2 by n

4n-12 + 6+2n

2. Now you add your common numbers

6n -6

R = 10.5

Step-by-step explanation:

Using Pythagorean theorem, we can write

(OM)^2 + 10^2 = (OR + 4)^2

Since OM = OR, let's call this segment R for brevity.

R^2 + 10^2 = (R + 4)^2

R^2 + 100 = R^2 + 8R + 16

This simplifies to

8R = 84

or R = 10.5

Answer:

Step-by-step explanation:

12 x $ 0.50 = $6

Answer:

6

Step-by-step explanation:

.50 multiplied by 12 equals 6

A perfect square refers to a number that is the result of multiplying an integer by itself. In this case, 6^1 is equal to 6.

However, 6 is not a perfect square because it cannot be obtained by multiplying an integer by itself. The perfect squares up to 6^1 would be 1^2 = 1 and 2^2 = 4.

Answer:

128 + 72 = 200

Step-by-step explanation:

Start from the ones. And go next to tens and last find the hundreds.

see image.

The measure of ∠EFJ is 60°. Option B is the correct option.

What is a linear pair?

When two lines cross at one point, a linear pair of angles are created. If the angles follow the intersection of the two lines in a straight line, they are said to be linear. A linear pair's total angles are always equal to 180°. These are also referred to as supplementary angles.

∠EFG is a linear pair of angle.

This means ∠E F G = 180°

Given that ∠J F K = 90° and ∠E F J = 2∠K F G.

∠E F G is the sum of angles ∠E F J, ∠J F K  and ∠K F G

∠E F G = ∠E F J + ∠J F K + ∠K F G

Now putting the value of ∠E F G, ∠J F K

180° = ∠E F J +  90° + ∠K F G

Again putting ∠K F G = 1/2∠E F J:

180° = ∠E F J +  90° + 1/2∠E F J

180° -  90° = 3/2 ∠E F J

90° = 3/2 ∠E F J

∠E F J = 90° ×(2/3)

∠E F J = 60°.

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For the given proportional relationship, it is found that the unit rate is of 1.5 inches per second, and the meaning of the points is given as follows:

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

y = kx

In which k is the constant of proportionality, also called the unit rate.

For this problem, the unit rate is given as follows:

k = 4.5/3 = 1.5/1 = 1.5 inch per second.

The meaning of the points are given by:

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Answer: what are you asking im lost

Step-by-step explanation:

Answer:

6.35555556

Step-by-step explanation:

I ain't never seen two pretty best friends

Answer:

Screen shot it then save as then save as a png then turn it in

Step-by-step explanation:

The factory will put 441 cans of soda in 7 cases.

If each case of soda contains 7 cans of each flavor, and the factory is putting 7 cases, we can calculate the total number of cans by multiplying the number of flavors, cans per flavor, and cases.

Given:

Number of flavors = 9

Cans per flavor = 7

Number of cases = 7

To calculate the total number of cans, we can multiply these values:

Total cans = Number of flavors × Cans per flavor × Number of cases

Total cans = 9 × 7 × 7

Total cans = 441

To arrive at this answer, we multiplied the number of flavors (9) by the number of cans per flavor (7) to get the number of cans per case (63). Then, we multiplied the cans per case (63) by the number of cases (7) to obtain the total number of cans (441).

Hence, the factory will put 441 cans of soda in 7 cases.

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The sequence is decreasing as n increases and sequence converges to the value 0.

The given sequence is defined as aₙ = 1 / (7n + 3).

To determine if the sequence converges or diverges, we need to analyze its behavior as n approaches infinity.

As n increases, the denominator 7n + 3 also increases which means that the values of aₙ will get smaller and smaller, approaching zero as n becomes larger.

The sequence converges to the value 0.

The sequence is decreasing as n increases.

The sequence converges to the value 0.

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The value of f(g(2)) from the given functions f(x) and g(x) is 3.

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

The given functions are f(x)=2x²+1 and g(x)=3x-5.

We need to find f(g(2)).

Put x=2 in the function g(x)=3x-5, we get

g(2)=3×2-5

= 6-5

= 1

So, g(2)=1

Put x=1 in the function f(x)=2x²+1, we get

f(g(2))=2(1)²+1

= 2+1

=3

Therefore, the value of f(g(2)) is 3.

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Answer:

0.7 cups

Step-by-step explanation:

5 gallons, use 3 1/2 cups = 3.5 cups of lemonade

so 1 gallon, use 3.5/5 = 0.7 cups of lemonade

The probability that the duration is at least 4 is 0.0053 (rounded to four decimal places).

Probability is represented by a number between 0 and 1, with 0 denoting an impossibility and 1 denoting a certainty.

(a) Let X be the duration of the contest. Then X can take values from 1 to 6, where 1 indicates that A or B wins the first game, and 6 indicates that the contest ends in a draw after 5 successive draws.

We can find the PMF of X by considering the possible outcomes for each value of X.

P(X = 1) = P(A wins) + P(B wins) = 0.2 + 0.5 = 0.7

P(X = 2) = P(A loses, B loses, A wins or B wins) = 0.3 * 0.3 * (0.2 + 0.5) = 0.054

P(X = 3) = P(A loses, B loses, A loses, B loses, A wins or B wins) = \(0.3^4\) * (0.2 + 0.5) = 0.01323

P(X = 4) = P(A loses, B loses, A loses, B loses, A loses, B loses, A wins or B wins) = \(0.3^6\) * (0.2 + 0.5) = 0.00243

P(X = 5) = P(A loses, B loses, A loses, B loses, A loses, B loses, A loses, B loses, A wins or B wins) = \(0.3^8\) * (0.2 + 0.5) = 0.0004374

P(X = 6) = P(5 successive draws) = \(0.3^5\) = 0.00243

Therefore, the PMF of X is:

X 1 2          3          4         5                 6

P(X) 0.7 0.054 0.01323 0.00243 0.0004374 0.00243

(b) To find the probability that the duration is at least 4, we need to add the probabilities of X = 4, X = 5, and X = 6.

P(X >= 4) = P(X = 4) + P(X = 5) + P(X = 6) = 0.00243 + 0.0004374 + 0.00243 = 0.0052974

Therefore, the probability that the duration is at least 4 is 0.0053 (rounded to four decimal places).

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Answer:

5⁻³ = 1/5³ = 1/125

Answer: 1/125

Step-by-step explanation:

Answer:

25+4=29

thats your answer

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Answer:

29

Step-by-step explanation:

x^2+4

Let x= 5

5^2 +4

25+4

29

Answer:

5.7

Step-by-step explanation:

5.666666666 can be rounded to 5.7 because the first decimal place occurs immediately after the decimal point.

I.e. in the number 1.23456, the first decimal place value is 2.

Meaning when we round, we look at the second decimal place. Given that 5.666666666 has a second decimal place greater that 5, we can round to 5.7

Answer:1.5

Step-by-step explanation:

Y=1/2 of x

Answer:

1 2/5

Step-by-step explanation:

Flip 2/5 to be 5/2

Multiply.

2/3 ⋅ 2/5 = 10/6

Simplify.

1 2/5

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