Richard has four times as many marbles as john. if Richard have 18 to John they would have the same number. how many marbles has each?​

Answer:

The shopkeeper lost $500

Answer:

Step-by-step explanation:

Interest  = 15% of 200 = 15/100 * 200 = 15 * 2 = $30

The Amount he need to pay = 200 + 30 = $230

Answer:

F(x)=7x^2 or G(x)=7x^2

Step-by-step explanation:

Answer:

correct answer = 90%

Step-by-step explanation:

Let x be the percent of the question did she answer correctly.

Given:

An engineering student answered 81 questions correctly on a 90 question test.

Find the percent of the question did she answer correctly.

Solution:

Percentage formula is given below

% answer [tex]=\frac{correct\ answer}{total\ questions}\times 100[/tex]

% answer [tex]=\frac{81}{90}\times 100[/tex]

% answer [tex]=\frac{81\times 100}{90}[/tex]

% answer [tex]=\frac{81\times 10}{9}[/tex]

% answer [tex]=9\times 10[/tex]

% answer [tex]=90[/tex]

correct answer = 90%

Therefore, she answered 90% correctly.

Answer:

90%

Step-by-step explanation:

Answer:

[tex]2^8[/tex]

Step-by-step explanation:

To find the quotient of:

[tex]\frac{2^4}{2^{-4}}[/tex]

Solution:

We will apply quotient rule of exponents to find the quotient of the given expression.

By Quotient rule: [tex]\frac{a^x}{a^y}=a^{(x-y)}[/tex]

Thus the quotient for the expression can be given as:

[tex]\frac{2^4}{2^{-4}}[/tex]

⇒ [tex]2^{(4-(-4))}[/tex]

⇒ [tex]2^{(4+4)}[/tex]

⇒ [tex]2^8[/tex] (Answer)

The expression [tex]\frac{2^4}{2^-4}[/tex] can be simplified to 256.

To solve the expression [tex]\frac{2^4}{2^-4}[/tex], we can use the properties of exponents :

Therefore, the value of the expression [tex]\frac{2^4}{2^-4}[/tex] is 256.

Answer:

50

Step-by-step explanation:

The x-axis represents the number of broken light bulbs, as labelled on the histogram. The highest range is 41 to 50, therefore the greatest possible number of broken light bulbs is 50.

Answer:

50

Step-by-step explanation:

The last bar on the number of broken light bulbs (x) axis covers the range 41-50. Thus, 50 is the maximum number of broken light bulbs that can be and is represented in this histogram.

Answer:

0

4

5

9

Step-by-step explanation:

The combined cost of one loaf of bread and one package of cheese is $6.50.

Mason bought 6 loaves of bread and 3 packages of cheese for a total of $27. The cost of a package of cheese is $1.50 more than the cost of a loaf of bread. To find out the combined cost of one loaf of bread and one package of cheese, we need to use a system of equations.

Let the cost of one loaf of bread be x. Therefore, the cost of one package of cheese would be x + $1.50. Since Mason bought 6 loaves of bread and 3 packages of cheese, we can express the total cost as:

6x + 3(x + $1.50) = $27

Distributing the 3 into the parentheses, we get:

6x + 3x + $4.50 = $27

Combining like terms, we have:

9x + $4.50 = $27

Subtracting $4.50 from both sides, we get:

9x = $22.50

Dividing both sides by 9, we find out that one loaf of bread (x) costs:

x = $2.50

Now, adding the additional $1.50 for the cheese, we find that one package of cheese costs:

x + $1.50 = $4.00

The combined cost of one loaf of bread and one package of cheese is therefore:

$2.50 (bread) + $4.00 (cheese) = $6.50

Answer:

What was the question (I can't see the picture)

Step-by-step explanation:

Answer:

B. 180 degrees

Step-by-step explanation:

∠A, ∠B and ∠C are collective the internal angles of a triangle.

By definition, the internal angles of a triangle sum to 180degrees

hence ∠A + ∠B + ∠C = 180 degrees

(see also attached graphic for reference)

The change Bill should receive from a £10 note after paying to post three parcels, each costing £1.10, is £6.70.

Bill wants to post three parcels and each parcel costs £1.10 to post. The total cost for posting all three parcels would be £1.10 * 3 = £3.30. If he pays this fee with a £10 note, we can calculate the change by subtracting the total cost of posting parcels from the value of the note: £10 - £3.30 = £6.70. So, the change Bill should get back from a £10 note after posting 3 parcels each costing £1.10 is £6.70.

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Answer: Tara paid more per box

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

f(x)=8(x−3)+13

f(5)= 8(5-3)+13

f(5) = 8(2) +13

f(5) = 16 +13

f(5)= 29

Hope this helps!

Please mark brainliest if you think I helped! Would really appreciate!

Answer:

Your correct answer is 29! Here is the step by step explanation!

Step-by-step explanation:

f(x)=8(x−3)+13

f(5)= 8(5-3)+13

f(5) = 8(2) +13

f(5) = 16 +13, wich means when you do this,

f(5)= 29

you get your answer of 29! Please mark brainliest! Hope it helped! Have a nice day!

Answer:

15

Step-by-step explanation:

Answer:

15 or 14.8, depending on whether it is a ehole number on on decimal place

Step-by-step explanation:

Answer:

X= 5  Y= -2

Step-by-step explanation:

Answer:168

Step-by-step explanation: v=lwh

V=7x8x3

= 168

Answer:

d) 16 degrees Fahrenheit

Step-by-step explanation:

What do we know? Initial temperature: -2. Then the temperature rose by 18 degrees. We can express this mathematically:

[tex]-2+18[/tex]

If you are not particularly comfortable with negatives, you can rewrite this expression as such:

[tex]18-2[/tex]

[tex]16[/tex]

Thus the temperature at sunset was 16 degrees Fahrenheit.

Answer:

16 degrees

-2 + 18 is 16

Step-by-step explanation:

If this is wrong EXPLAIN HOW ITS WRONG

Answer:

48

Step-by-step explanation:

48=2×2×2×2×3

78=13×2×3

48 has 5 factors.

You can apply the formula of perimeter of rectangle and that is 2(l+b)....

Answer: 126 and 128

Step-by-step explanation: In this problem have two consecutive even integers whose sum is 254.

Consecutive even integers can be represented as followed.

X ⇒ first even integer

X + 2 ⇒ second even integer

Since the sum of these is 254, our equation reads X + X + 2 = 254.

We can simplify on the left side of the equation to get 2x + 2 = 254.

Now, we subtract 2 from both sides of the equation to get 2x = 252.

Lastly, we will divide both sides of the equation by 2 in order to isolate x. On the left side, the 2's cancel out and on the right, 252 divided by 2 is 126.

If our first integer is 126, our next consecutive even integer will be 126 + 128 which simplifies to 254.

Therefore, our two consecutive even integers are 126 and 128.

Answer:

Step-by-step explanation:

7(p+5)

Final answer:

To carpet a room measuring 3 meters by 2 meters, you need 6 square meters of carpet.

Explanation:

To calculate the area of a rectangular room that measures 3 meters in length and 2 meters in width, you multiply the length by the width.

Using the formula Area = length × width,

As we can see that the room is a rectangle with width 2 and length 3

So,

Length = 3 m

Width = 2 m

We find that the room's area is 6 square meters (3m × 2m = 6m²).

Therefore, to carpet a room of this size, you would need to buy 6 square meters of carpet.

Answer:

d

Step-by-step explanation:

Answer:

a= 63 ⁰; z= 80⁰; x= 30⁰; N= 102⁰;M = 66⁰

Step-by-step explanation:

Example 1 :  the angle opposite to angle 2a is 54 degrees because it is the opposite exterior angle of 54 degrees angle so

2a+54⁰= 180⁰

2a= 180⁰-54⁰

2a= 126⁰

a= 126/2= 63⁰

EXAMPLE 2:  Opposite exterior angles are equal so

z+25⁰= 105⁰-------A

z= 105⁰-25⁰

z=80⁰

It is making a straight angle so

105⁰+ 3x-15= 180⁰

3x-15=180-105

3x-15=75⁰

3(x-5)=75⁰

x-5⁰=75/3

x-5⁰=25⁰

x= 25⁰+5⁰

x=30⁰

EXAMPLE 3:

114⁰= N+12⁰   (exterior opposite angles are equal)

N= 114⁰-12⁰

N= 102⁰

114⁰+M= 180⁰     (straight angles)

M= 180⁰- 114⁰

M= 66⁰

A) The factored form of area of rectangle is 2(2y + 5)

B) length of rectangle is 2 and width is 2y + 5 and one possible set of dimensions of rectangle is length 2 and width 7

Solution:

Given that area of rectangle is 4y + 10

A. Represent the area of the rectangle in factored form

The factored form is a parenthesized algebraic expression.

Factored form is a product of sums of products or a sum of products of sums

Given area of rectangle is 4y + 10

Taking 2 as common,

4y + 10 = 2(2y + 5)

Therefore, the factored form of given area of rectangle is 2(2y + 5)

B. Use the factored form to give one possible set of dimensions for this rectangle

The area of a rectangle is given by the formula:

area of rectangle = length x width

Therefore, area of rectangle = 2(2y + 5)

So the length of rectangle is 2 and width is 2y + 5

Or the length of rectangle is 2y + 5 and width is 2

If y = 1, then one possible set of dimensions of rectangle is:

length = 2 and width = 2(1) + 5 = 7

So one possible set of dimensions of rectangle is length 2 and width 7

Final answer:

The factored form of the area of the rectangle is 2(2y + 5).

One possible set of dimensions, based on the factored form, is a length of 2y units and a width of 5 units.

Explanation:

To represent the area of a rectangle in factored form, we look for factors of the expression 4y + 10. Both terms have a common factor of 2, so the factored form is:

2(2y + 5).

Now, to give one possible set of dimensions for the rectangle using the factored form, we can consider each factor as a dimension:

Thus, one possible set of dimensions for the rectangle could be 2y units (length) and 5 units (width).

Answer:

[tex]\int \ln (x+1) \, dx=x\cdot \ln (x+1)-x+\ln (x+1)+C[/tex]

Step-by-step explanation:

Use integration by parts formula:

[tex]\int u \, dv=uv-\int v \, du[/tex]

For the integral

[tex]\int \ln(x+1) \, dx,[/tex]

[tex]u=\ln (x+1)\\ \\dv=dx,[/tex]

then

[tex]du=d(\ln (x+1))=\dfrac{1}{x+1}\ dx\\ \\v=x[/tex]

and

[tex]\int \ln(x+1) \, dx\\ \\=x\cdot \ln (x+1)-\int x\cdot \dfrac{1}{x+1} \, dx\\ \\= x\cdot \ln (x+1)-\int \dfrac{x+1-1}{x+1} \, dx\\ \\=x\cdot \ln (x+1)-\int \left(1-\dfrac{1}{x+1}\right) \, dx\\ \\=x\cdot \ln (x+1)-\int \, dx +\int \dfrac{1}{x+1} \, dx\\ \\=x\cdot \ln (x+1)-x+\ln (x+1)+C[/tex]

Final answer:

x = 1 and x = 8.

Explanation:

This can be completed through factoring the quadratic equation. To factor x^2 - 9x + 8, we look for two numbers that multiply to +8 and add to -9. These numbers are -1 and -8 since (-1) * (-8) = +8 and (-1) + (-8) = -9. Therefore, we can write the polynomial as (x - 1)(x - 8). The roots are the values of x which make each factor zero, hence we get the roots as x = 1 and x = 8.

Answer:

2:23 pm

Step-by-step explanation:

We can solve this considering a a right triangle

let t = travel time of both ships

therefore,

15t = distance traveled by ship A

however, it is traveling toward the point of reference, therefore we write it

(30-15t)

and

10t = distance traveled by ship B, away from the point of reference

Let d = distance between the ships at t time, (the hypotenuse of the right triangle)

[tex]d= \sqrt{(30-15t)^2+10t^2}[/tex]

and combine like terms

[tex]d= \sqrt{(900-900t+225t^2)+100t^2}[/tex]

[tex]d= \sqrt{3325t^2-900t+900}[/tex]

from this d to minimum we can find the axis of symmetry, where in

a=325 and b= -900

the t=-b/2a

[tex]t= -\frac{-900}{2\times325}[/tex]

t= 1.384 hours

now putting the value we get

[tex]d= \sqrt{3325(1.384)^2-900(1.384)+900}[/tex]

solving this we get

d= 16.64 miles

therefore,

16.64 mi apart after 1.3846 hrs, minimum distance between the ships

now, 1.384 hours = 1+60(0.348) hour

= 1 hour and 23 minutes

so, the time at which the distance d between the ships is minimal = 1:00 pm + 1 hour and 23 minutes = 2:23 pm

Answer: The answer is A my bro trust me *Fist Bump*

Answer:

A

Step-by-step explanation:

I did it and got it right.

Hope this helps:)