a grandmother says her grandson is two years older than her granddaughter and that together they are at least 12 years old how old are her grandson and granddaughter

Answers

Answer 1
 x = the granddaughter's age x + 2 = the grandson's age   x + x + 2 ≥ 12        Collect like terms.            2x ≥ 12            Divide both sides by 2.              x ≥ 6 years       x + 2 ≥ 8 years
Answer 2
Grandson=granddaughter + 2
Grandson +gradaughter = 12

Make grandson x and granddaughter y

X=y + 2
X + y = 12

(Y + 2) + y = 12

2y + 2= 12
2y = 10
Y = 5
Granddaughter is 5
Grandson is 7

Related Questions

What is the LCm of two numbers if one number is a multiple of the other

Answers

Greetings!

"What is the LCM of two numbers if one number is a multiple of the other"...

The LCM (The Lowest Common Denominator) would be the number itself, multiplied by one.

For Example:
3/4+3/20

Multiples of the Denominators:
4:4,8,12,16,20,24
20:20,40

4*5=20
20*1=20

The LCM would be 20.

Hope this helps.
-Benjamin

Simon has a bag of marbles. Six are green marbles, four are red, two are blue and ten are black. If he selects one at random, the probability that it will be black is

Answers

The answer is 10/22
Because you have 22 marbles total once you add them all and you have 10 black marbles so the probability it will be black when you pull it out is 10/22

I need help solving these problem 14=8-6r

Answers

14 = 8 -6r
Reorder so the common terms are on one side.
Subtract 8 from both sides.
8 -6r = 14 --> -6r = -8 +14
-6r = 6
Divide each term by -6 and simplify.

r = -1

The solution of expression is, r = 1

We have to give that,

An expression to solve,

14 = 8 - 6r

Now, Simplify the expression by combining the like terms as,

14 = 8 - 6r

Add 6r on both sides,

14 + 6r = 8 - 6r + 6r

14 + 6r = 8

Subtract 14 on both sides,

6r = 8 - 14

6r = 6

Divide into both sides by 6,

r = 6/6

r = 1

Therefore, The solution is, r = 1

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what is 3x-8=8x+4/2 solve for variable

Answers

first you need to get your variable by itself

3x - 8 = 8x + 4/2

subtract 3x from 8x

-8 = 5x +4/2

subtract 4/2 from -8

-10 = 5x

divide by 5

x = -2 
x=  -2   I am 100% sure

Three equivalent ratio of 36:48

Answers

To find equivalent ratios, one of two things must apply:
There are common factors of both the numerator and denominator
The numerator and denominator are common factors of other numbers.

ex. 36 and 48 are both divisible by 2, 3, 6, and 12. If you divide both the numerator and denominator by 2, your ratio is 18:24. If the numerator and denominator were divided by 3, the ratio would be 12:16. Divided by 6 would give you a ratio of 6:8, and dividing by 12 results in a ratio of 4:3.

On the other side of the spectrum, if you, say, needed five or six options, then you can multiply both the numerator and denominator by a non-zero number (You are really multiplying by one, ex. 2/2, so the ratio is equivalent. It just seems larger.) So if you did multiply it by 2/2, then your ratio would be 72:96. Hope this helps.

Adam needs both small and large cones to set up for a soccer practice. He knows there are fewer than 30 cones in the storage room. He needs at least a dozen large cones. Let x represent the number of small cones and y represent the number of large cones. Select all inequalities that model this situation.
    x>0  
   y≥12
 x+y≤30
  y>12
  x≥0
 x+y<30

Answers

x:  the number of small cones
y:  the number of large cones

a "dozen" means 12.


"Adam needs both small and large cones to set up for a soccer practice" mean that x must not be 0, and y must not be 0.

"there are fewer than 30 cones in the storage room." mean that : x+y<30

"He needs at least a dozen large cones." means that y≥12

so we have:

i) x≠0, y≠0, that is x>0, y>0

ii) x+y<30

iii) y≥12


now let's check all choices we have:

    x>0         True by i
   y≥12         True by iii
 x+y≤30       Not True by ii  (x+y is smaller than 30, the sum cannot be 30)
  y>12          Not true by iii (y may be = 12)
  x≥0             Not true by i, Adam needs small cones to (so we are assuming there are some in the storage room. Though this is open to interpretation)
 x+y<30      True

Final answer:

The inequalities that accurately model the situation where Adam needs fewer than 30 cones, with at least a dozen large ones, are y≥12, x+y≤30, and x≥0. These inequalities represent the constraints on large cones, total cones, and the feasibility of small cones respectively.

Explanation:

The student asks about modeling a situation with inequalities where Adam needs both small and large cones for soccer practice, with fewer than 30 cones total and at least a dozen large ones. The variables x represent the number of small cones and y represent the number of large cones. To accurately model this scenario, the following inequalities are correct:

   y≥12: Adam needs at least a dozen large cones.

   x+y≤30: The total number of cones, both small and large, is less than or equal to 30.

   x≥0: The number of small cones can be zero but not negative, as you can't have a negative number of cones.

Thus, the inequalities that model this situation are y≥12, x+y≤30, and x≥0. These inequalities account for the constraints on the number of large cones needed, the total limit on cones, and the feasibility of the number of small cones respectively.

Determine the value of x for which a || b if m<3=10x and m<5=12x-25

Answers

10x=12x-25
-2x=-25
2x=25
x=2.5

A town's population increases in one year from 100,000 to 110,000. If the population is growing exponentially at a steady rate, then at the end of a second year it will be

Answers

120,000 people.
110,000 - 100,000 = 10,000
110,000 + 10,000 = 120,000 peoples.

Rafael has 118 baseball cards arranged in an album. Each page of the album can hold 9 cards. How many pages are full and how many cards are on the last page? Show your work.

Answers

Rafael would have 13 pages that are full.
13 times 9= 117
Rafael would have 1 card on the last page.
118-117= 1

The division is one of the four fundamental arithmetic operations. The number of pages of the album that are completely filled is 13, while the last page of the album has only 1 card.

What is Division?

The division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that Rafel has 118 baseball cards arranged in an album. Also, Each page of the album can hold 9 cards.

Therefore, the number of pages that will be full can be found by dividing the total number of cards available by the total number of cards that each page can have.

In the division, the quotient represents the number of pages which have 9 photos, therefore are full. And the remainder represents the number of photos that will be left on the last page.

The division can be carried out as shown below.

Hence, the number of pages of the album that are completely filled is 13, while the last page of the album has only 1 card.

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A 16 foot piece of string is cut into two pieces so that the longer piece is 1 foot longer than twice the shorter piece find the length of both pieces

Answers

x = long piece

y = short piece

 x = 2y+1

2y +1 +y =16

3y +1 = 16

3y =15

y = 15/3 =5

 y = 5

x = 2(5) +1 = 11

short piece is 5 feet

long piece is 11 feet

simplify the following expression: 2(6x + 18)

a. -12x + 36
b. 8x + 20
c. 6x + 36
d. 12x + 36

Answers

your answer will be D 12x+36
It's d 12x+36
because you multiply 2 and 6 and then 2 and 18

Slope=5,through(3,13)

Answers

The slope equal 5 so the equation as the form y=5x+b,
(3,13) means 5(3)+b=13, hence b=-2.
So y=5x-2.

Answer:

y=5x-2.

Step-by-step explanation:

This question wants us to write the given line in a slope-intercept form, which is y=mx+b, where m is the slope and b is the y-intercept. We already know the slope, which is 5, so just insert 5 in for m. We get y = 5x = b. We're not done, however, we still need to solve for b. (3,13) equals 5(3)+b=13. This gives us our final result of b=-2. insert this into the equation for b, and the equation becomes y = 5x -2.

PLEASE MARK BRAINLIEST

There are 8 students on the minibus.five of the students are boys.what fraction of the students are boys

Answers

5/8 of the students are boys

5 representing boys
8 representing all students

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

Answers

y=5x+20 hope this helps

Equation in slope intercept form will be 5x + 20.

It is given that to join a online learning community, startup fee is $ 20 and the monthly fee is $ 5.

We have to write an equation in slope-intercept form.

What is the equation for slope intercept form ?

Equation for slope intercept form is y = mx + c.

Let's assume ;

y = total cost

x = months

c = startup fee

equation in a slope intercept form is y = mx + c.

Putting the values , we get ;

y = 5x + 20

Thus the equation in slope intercept form will be y = 5x + 20.

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Which integer is less than –4?



 
A.
–6


 
B.
–2


 
C.
0


 
D.
3

Answers

-6 is less than (-4)
The answer is A. -6 because if the numbers were on a number like -6 would be left of -4 which means it's less than -4

the sides in a rectangle are in the ratio 3:2. What is the length of each side if the perimeter of the if the rectangle is 55cm

Answers

Answer: 11cm, 11cm, 16.5cm, 16.5cm

Step-by-step explanation:

Final answer:

To find the length of each side of a rectangle in ratio of 3:2, set up the equation for the perimeter and solve for the sides using algebraic manipulation.

Explanation:

To find the length of each side of the rectangle, we must solve for the sides using the given ratio. Let's assume the ratio is 3x:2x, where x is a common factor. The perimeter of a rectangle is equal to 2 times the length plus 2 times the width. So, we can set up the equation: 2(3x) + 2(2x) = 55 cm. Simplifying the equation, we get 6x + 4x = 55. Combining like terms, 10x = 55, and dividing both sides by 10, we find x = 5. Therefore, the length of each side is 3x = 3(5) = 15 cm, and the width is 2x = 2(5) = 10 cm.

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How do you read 12.0045 in standard form

Answers

12.0045 = 12 + 45/10000

so you read as

twelve and forty-five ten-thousandths

A jet plane costs an airline $69,500,000. What is the place value of the digit 5 in this number

Answers

Five hundred thousand
The place of the number 5 is 100,000. I'm not really sure how to explain this. Basically think about multiplying ten enough times to where you reach the five (for example, if you were looking to find the place value for the number 6 in 600, it would be the hundreds place). Whatever you come up with with the ten is your place value for the five. Also, try saying the number out loud. The answer is in the name of the number. sixty-nine million, five hundred thousand.

find the factors and the greatest common factor 375,66,333

Answers

Answer:

the greatest common factor is 3

Step-by-step explanation:

375: 1, 3, 5,11, 15, 25, 75, 125, 375

66: 1, 2, 3, 6, 11, 22, 33, 66

333: 1, 3, 9, 37, 111, 333

John has 2,456 pennies in his coin collection. He has the same number of pennies in each of 3 boxes. Estimate to the nearest hundred the number of pennies in each box.

Answers

In order to determine how many pennies John has in each box, we have to divide 2,456 (total number of pennies) by 3 (total number of boxes). This means there are 819 (rounded) pennies in each one of John's boxes.

An Apple orchard sells apples in bags of 10. the orchard sold a total of 2,430 apple One day. how many bags of apples was this?

Answers

243 bags of Apples boi
You divide 2,430/10 which gives you 10 if it asks you a question like that the apples were sold in bags of ten and they sold 2430 one day divide the bigger number by the smallest.

Jessica went to the grocery store and purchased a box of cereal for $3.75, milf for $1.50, and bread for $2.25. She paid with a $20.00 bill. How much change did Jessica receive?

Answers

Jessica will get $12.50 back

Jessica will receive a $12.5 change back.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

Summation = addition of two or more numbers or variable

For example = 2 + 8 + 9

Subtraction = Minus of any two or more numbers with each other called subtraction.

For example = 4 - 8

Division = divide any two numbers or variable called division.

For example 4/8

Multiplication = to multiply any two or more numbers or variables called multiplication.

For example 5 × 7.

The total cost of all purchased items

cereal for $3.75, milk for $1.50, and bread for $2.25

So,

3.75+1.50+2.25 = $7.5

Jessica paid $20

She will get back = 20 - 7.5 = $12.5

Hence "Jessica will receive a $12.5 change back".

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34=−2t can u help me

Answers

34 = -2t....divide both sides by -2
(-34/2) = (-2/-2)t
- 17 = 1t, or just t

so ur answer is : t = -17

Nine cave explorers will carry 120 ft of the rope with them during an expedition next month what’s they total number of yards of rope that the explorers will carry

Answers

120 ft of rope multiplied by 9 explorers

120 times 9 = 1080

=1080 yards of rope

What is 39.39 rounded to the nearest 10th

Answers

39.39 rounded to the nearest 10th is 39.4

you round up, since the hundredths place is higher than 5.

hope this helps! :D
the answer is 39.4. srry th pic is so blurry it's just an explanation how to round and how I got the answer

of an item is ​$480. After 6 months of not​ selling, it is marked down by 10​%. After another 6 months of not​ selling, it is further marked down by 20​%. Find the sale price after both markdowns

Answers

Final answer:

The item with an original price of $480 is marked down twice, first by 10%, reducing it to $432, and then by another 20%, making the final sale price $345.60.

Explanation:

The original price of the item is $480. The first markdown of 10% reduces the price by $48 (10% of $480), which makes the new price $432. After six months, the item is marked down again by 20%, which is $86.40 (20% of $432). The final sale price of the item after both markdowns is $432 - $86.40 = $345.60.

X/3 - x/5 = 2/15 what does x equal

Answers

your answer is 1, x=1 

Write an algebraic expression for each verbal expression

Answers

10-u
18+n
33j
2/5*n^3
Its me again

a swimming pool charges $3 per session to sweim, without a discout card. A discount card costs $36 and with the card it costs only $1 per session to swim. How many times would you have to swim to justify buying the discount card?

Answers

13 times you'd have to swim

Evaluate the expression for the given values.

mx−y when m=2, x=7, and y=5

Answers

2(7)-5

2*7 is 14

14-5 is 9

The answer to 2(7)-5 is 9
2(7)-5
14-5
9 would be answer
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