David and Lucy have sweets in the ratio 4:7. Lucy has
27 more sweets. How many does David have?

Answers

Answer 1

Answer:

David share is 36 sweets

Step-by-step explanation:

let Lucy share be x

let David share be y

Lucy has 27 more

x=y+27

total sweet is x+y

y+27 +y= 2y+27

total ratio = 4+7=11

David share=

[tex]y = \frac{4}{11} \times (2y + 27)[/tex]

[tex]11y = 4(2y + 27)[/tex]

[tex]11y = 8y + 108[/tex]

[tex]11 y- 8y = 108[/tex]

[tex]3y = 108[/tex]

y=108/3= 36


Related Questions


In the figure shown, APQR-ADFE
Р
X + 6
6
X + 1
4
Q
x + 3
R
E
X + 8
F
Which equation can be used to find the value of x?
AX+1= 6
B x + 3 = 6
С
X-1
6
x+6
0.x= = *=3

Answers

Answer:

The second one

Step-by-step explanation:

if you do the math you can see that the value of x is the second one. I got it right on edge

can i get a OHHHHHH YEAHHHH

Answers

Answer:

AW YEAHHHHHHHHHHHHHHHHHHHHHHHHHHH

Step-by-step explanation:

Answer:

OH YEAHHHH

Step-by-step explanation:

lol

can someone help me with this

Answers

The answer is AREA. I believe circumference is One way of measuring a circle. I hope you get it right good luck


Which is equivalent to 243 2/4
O 3
O 6
O9
O 12

Answers

the answer is 9 because......

Find the value of the power.
(1/8)^3 =

Answers

Answer:

1/512 or 1/8^3

Step-by-step explanation:

uppose you have purchased a filling machine for candy bags that is supposed to fill each bag with 16 oz of candy. Assume that the weights of filled bags are approximately normally distributed. A random sample of 10 bags yields the following data (in oz): 15.87, 16.02, 15.78, 15.83, 15.69, 15.81, 16.04, 15.81, 15.92, 16.10 On the basis of this data, can you conclude that the mean fill weight is actually less than 16 oz? Let LaTeX: \alpha=5\%α = 5 %. What would be the appropriate null and alternative hypothesis?

Answers

Answer:

Null, H0: μ ≥ 16

Alternative ; H1: μ < 16

reject H0

Step-by-step explanation:

Null, H0: μ ≥ 16

Alternative ; H1: μ < 16

To compute the test statistic :

We need the sample mean and sample standard deviation :

15.87, 16.02, 15.78, 15.83, 15.69, 15.81, 16.04, 15.81, 15.92, 16.10

Using calculator :

Sample mean, m = 15.887

Standard deviation = 0.13

Test statistic :

(m - μ) / s/sqrt(n)

(15.887 - 16) / 0.13/sqrt(10)

-0.113 / 0.0411096

= - 2.749

Tcritical at 95%

Tn-1, 0.025

T10,0.025 = 2.262

Since the test statistic value is less than the critical value, reject H0

pleaseee help i suck at math

Answers

e^x = 47

Read as e to the x power equals 47
Answer:E^x=47

Hope this helps you

For the requirements of a report Suzy has to write for school, she has a choice of wide-rule or narrow-rule paper and three different pen colors in which to write the report. How many different possibilities does Suzy have to write the report? Enter a numerical answer only.

Answers

Answer:

6

Step-by-step explanation:

You first have to choose from Wide and Narrow.

Let's call them W and N

Then you have to choose 3 different pen colors.

Let call them, 1, 2, 3

So There are two choices from W and N.

Then we pick the number: 1, 2, 3.

so If you pick W, you will have 3 choices. Same for N.

So in total: 6 choices.

W= 3 choices, W1, W2, W3

N= 3 choices, N1, N2, N3

so 6 in total.

2
What is the area, in square centimeters, of the figure below?
2.4 cm
-5.8 cm
A 6.96
B) 10.6
C 13.92
2
D 17.4.

Answers

Answer:

area of rectangle=l×b=2.4×5.8=13.92cm²

The right answer is letter C

5.2÷____= 0.052 please help meh :(

Answers

Answer:

The answer is 0.01 because 0.052=520   0.052 divided by 5.2=0.01

Step-by-step explanation:

A point is plotted on a coordinate grid at (-3,4). How far is the point from point (0,0)?
1 unit
3 units
4 units
5 units

Answers

5 units in a video game and the one on cam i i i i i i i i i the game on cam the first two weeks ago i i

The distance between the point (-3, 4) and (0, 0) is 5 units.

The distance between two points A(x₁, y₁) and B(x₂, y₂) on the coordinate plane is given by:

[tex]AB=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

Given the point (-3, 4), its distance from the point (0, 0) is:

[tex]Distance=\sqrt{(4-0)^2+(-3-0)^2}=5\ units[/tex]

The distance between the point (-3, 4) and (0, 0) is 5 units.

Find out more on distance at: https://brainly.com/question/17273444

What is the area of this parallelogram?

Answers

Answer:

30.6 if im wrong someone correct me in comments and explain why

Step-by-step explanation:

I multiplied 2.3 by 4.5 and got 10.35 then divided it by 2 and got 5.175 and multiplied it by 2 and got 10.35 then I multiplied 4.5 by 4.5 and got 20.25 and added it to 10.35 and got 30.6

Easier way just add the two lengths and multiply it by height

(9t + 1) + 7(1 + 9t)

Complete the missing expressions!!

Answers

Answer:

Step-by-step explanation:

Distribute:

=9t+1+(7)(1)+(7)(9t)

=9t+1+7+63t

Combine Like Terms:

=9t+1+7+63t

=(9t+63t)+(1+7)

=72t+8

Find the length marked x in the diagram below

Answers

Answer:

x = 5.57

Step-by-step explanation:

= √8² + 7²

= √64 + 49

= √113

= 10.63

x = √12² - 10.63²

x = √144 - 112.99

x = √31.01

x = 5.568

x = 5.57

Translate the folowing sentence into a equation. The quotient of a number and -2, less 10, is-18

Answers

Answer:

x + (-2) - 10 = -18

Step-by-step explanation:

Which exponential equation is equivalent to this logarithmic equation? logx 5 + logx 12 = 7

Answers

Answer:

x^7 = 60

Step-by-step explanation:

log(a)+log(b)=log(ab) so

logx 5 + logx 12 = logx (5*12) = logx 60

logx a = b means x^b = a so x^7 = 60

The logarithm equation in exponential form is x⁷ = 60

What is an Exponential Equation?

An exponential equation that can be represented in the form of abˣ.

The logarithm equation is:

logₓ 5 + logₓ 12 = 7

According to the rule of the logarithm,

log a + log b = log (ab)

logₓ ( 5 *12) = 7

logₓ ( 60) =7

According to the property of logarithm

logₓ ( a) = b

xᵇ = a

x⁷ = 60

To know more about Exponential Equation

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Need help with this please

Answers

Answer:

angle C=93 degrees

Step-by-step explanation:

arc AB=78 degrees

arc ABC=2x105 degrees=210 degrees

arc AD=360-210-42=108 degrees

arc=DAB=78+108=186 degrees

angle C=1/2(186)=93 degrees

An online fax company, EFaxIt, has a customer plan where a subscriber pays a monthly subscription fee of $6.5 dollars and can send/receive 120 fax pages at no additional cost. For each page sent or received past the 120 page limit, the customer must pay an overage fee of $0.08 per page. The following expression gives the total cost, in dollars, to send p pages beyond the plan's monthly limit.

C= 0.06p + 12.75

Required:
If the monthly bill under this plan comes out to be $16.47, what was the total number of pages that were sent or received?

Answers

Answer:

62 pages

Step-by-step explanation:

The total cost function is given as below:

C= 0.06p + 12.75

C=total cost for printing= $16.47

0.06= variable printing cost per page

p=number of pages prinited=the unknown

12.75=monthly fixed printing cost

16.47=0.06p+12.75

16.47-12.75=0.06p

3.72=0.06p

0.06p=3.72

p=3.72/0.06

p=62 pages

A consumer organization inspecting new cars found that many had appearance defects (dents, scratches, paint chips etc.). No car had more than three defects. Here is the probability distribution for the number of appearance defects in a new car. X: number of defects 0 1 2 3 P(x) 0.61 0.21 0.11 0.07 Find the expected number of appearance defects in a new car. Do not round.

Answers

Answer:

The expected number of appearance defects in a new car is 0.64.

Step-by-step explanation:

To find the expected number of appearance defects in a new car, we multiply each outcome by its probability.

We have that:

0.61 probability of 0 defects

0.21 probability of 1 defect

0.11 probability of 2 defects

0.07 probability of 3 defects

0.61*0 + 0.21*1 + 0.11*2 + 0.07*3 = 0.64

The expected number of appearance defects in a new car is 0.64.

Fifteen less than twice a number is 21.
What is the missing number? |

Answers

Answer:

2y - 15

Step-by-step explanation:

well 15 LESS than TWICE a number. okay so let’s start off by making a variable for the unknown number.... y. the variable is y. so now we have to think, TWICE that number, but we don’t know the number.

Now that we have the variable and we know it has to be doubled, let’s start off making the first half... we can out that into 2y. which is 2 multiplied by the unknown number.

now that we have the first half done, we have to take the 15 less. Less can mean  or subtract in this kind of situation. but for this certain scenario, it will be subtraction. so the equation would be 2y - 15.

Hello!

First of all, let the number be r.

"twice a number" means we multiply that number by 2:

2r

Subtract 15 (fifteen less)

2r-15

This is equal to 21:

2r-15=21

[tex]\rule{160}{2}[/tex]

Solve the equation:

2r=21+15

2r=36

Divide both sides by 2:

r=18

Hope everything is clear.

Let me know if you have any questions!

#LearnWithJoy

[tex]\rule{2}{2}~\bf{An~Emotional~Helper}~\rule{2}{2}}[/tex]

Write a function rule for the following geometric sequence.

4, 12, 36, 108,...when x = 0, 1, 2, 3....

A) f(x) = 3x + 4
B) f(x) = 4x + 3
C) f(x) = 4(3)x
D) f(x) = 3(4)x

Answers

I think it f(x) = 3x + 4 if I am wrong I am so so sorry have a great day.

A 4-inch long ribbon is cut into pieces. If the length of each piece is 12of an inch, how many pieces are cut?

Answers

Answer:

48 pieces are cut.

Step-by-step explanation:

1/12 of an inch means that one inch would be 12 pieces. Since there are 4 pieces it would be 12x4= 48 pieces.

One number is one more than a second number. Five times the first is 6 less than 4 times the
second. Find the numbers.

Answers

9514 1404 393

Answer:

  the numbers are -10 and -11

Step-by-step explanation:

Let x represent the second number. Then the first number is x+1, and the relation can be written ...

  5(x+1) = 4x -6

  x = -11 . . . . . . . . subtract 4x+5

The first number is -10; the second number -11.

How many solutions does the equation −4y + 4y + 2 = 2 have? (1 point) a Two b None c One d Infinitely many

Answers

Answer:

Infinity

Step-by-step explanation:

-4y + 4y + 2 = 2

2 = 2 = always true

Answer:

The answer is Infinitely many

Step-by-step explanation:

y-4=-3(x-3) in standard form
show ur work​

Answers

Answer: y-4=-3(x-3) in standard form is - 3x+y=13

Step-by-step explanation:

Hope this helps!

Answer:

3x+y=13 hope this helps dont have the work:)

The distance from Josh's house to the mall is 3.5 miles. The distance from Meg's house to the mall is 19,000 feet. Who lives closer to the mall, Josh or Meg? Use numbers and words to explain your answer.

Answers

Answer:

12

Step-by-step explanation:

Calculate the volume of the cylinder: 10 yd 7 yd
Round to nearest tenth
WILL MARK AS BRAINLIEST ​

Answers

Answer:

The answer is 384.85 yd       to the power of 3

Step-by-step explanation:

πr2h

=  π×3.52×10

=  122.5π

=  384.85

The volume of the given cylinder would be 384.65 cubic yards.

What is the volume of cylinder?

The volume of cylinder is given by -

V = πR²h

Where -

R - Radius of the cylinder

h - height of the cylinder

Given is to calculate the volume of the cylinder with height 10 yd and diameter 7 yd.

For the given cylinder, we have -

Radius of the cylinder : 7/2 = 3.5 yd

Height of the cylinder : 10 yd

So, we can write the volume of the cylinder as -

V = πR²h

V = 3.14 x 3.5 x 3.5 x 10

V = 384.65 cubic yards

Therefore, the volume of the given cylinder would be 384.65 cubic yards.

To solve more questions on cylinders, visit the link below-

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Please help please please

Answers

Answer:

4

Step-by-step explanation:

[tex] \frac{ {7}^{7} }{ {7}^{3} } = {7}^{7 - 3} = {7}^{4} [/tex]

URGENT! Please answer

Answers

Just solve for each side

sequence
60,45, 33.75 ....​

Answers

33.75,45,60 is the answer!!!!
The next number in the sequence is 25.3125.
60 x .75 (or 3/4) = 45
45 x .75 = 33.75
33.75 x .75 = 25.3125
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