Johnny and Mark's combined age is 26 years old. Johnny is two years older than twice Mark's age. Write a system of equations and solve for each of their ages

Answers

Answer 1

m * 2 + 2 = j

Answer:

Mark is 8

Johnny is 18

Step-by-step explanation:

m * 2 = j - 2

26 - 2 = 24

24 / 3 = 8

8 * 2 + 2 = 18


Related Questions

Help!,!!,,!,! Show ur work

Answers

Answer:

2/5+1/10

Step-by-step explanation:

2/5 ×2/2= 4/10

4/10+1/10=

5/10=1/2

Can you please help me with this.. you only have to do the first one (a)

Answers

-18 because 2 1/4 as an improper fraction is 9/4 then it -8/1 then multiply which is -72/4 and simplified is -18.

Answer:

-18

Step-by-step explanation:

9/4 x -8/1

-72/4

-18

What is the value of x in the eguation +4= 2(X-1)2
O5
11
2
O7

Answers

Answer:

2 or C

Step-by-step explanation:

I'm taking this to mean

4 = 2(x - 1)^2

4 = 2(x^2 - 2x + 1)

4 = 2x^2 - 4x + 2

2x^2 - 4x - 2  =  0

x^2 - 2x - 1 = 0

What you get from here is sqrt(2) as one of the roots.

That is not nearly an answer.

4 = 4(x -1)

4 = 4x - 4

8 = 4x

x = 8/4

x  =  2

That makes C the answer.

I need help in geometry urgently!!!

Answers

Answer:

x = 6

Step-by-step explanation:

According to Exterior Angle Property of a triangle , measure of an exterior angle is the sum of its opposite interior angles.

Using the exterior angle property ,

[tex]17x - 23 = 3x + 17 + 8x - 4[/tex]

[tex] = > 17x - 23 = 11x + 13[/tex]

[tex] = > 17x - 13x = 23 + 13[/tex]

[tex] = > 6x = 36[/tex]

[tex] = > x = \frac{36}{6} = 6[/tex]

Hello can someone help me with this question please!

Answers

Answer: 66.10

Step-by-step explanation:

Sin^-1(32/35)

help please this is due in a few minutes!!​

Answers

Put the whole number over 1,
2 x 3/4
2/1 x 3/4
Now you would multiply across
6/4

please someone help me with this question

Answers

Basically something like this

1. a rectangular room measures 10 feet by 12 feet. What is the area of the room?

2. What is the area of a rectangle with a base of 6 inches and height of 10 inches?

3. Travis is planting a rectangular garden that is 5 feet by 12 feet. One bag of soul covers 6 square feet. How many bags of soil does he need to cover the whole garden?

Answers

Answer:

1880... good luck.. have a grate day

Pl help it’s for a grade I will give you Brainly if you are right a.0.80 b 1.00 c4.00 d 0.83

Answers

I think it’s c sorry if I’m wrong

The fee for renting a video camera is $25, plus $15 per day. Sam can spend no more than $85. What is the maximum number of days sam can rent the video camera? HURRY PLS

Answers

Answer:

3 in a half days

Step-by-step explanation:

Answer:

4 days

Step-by-step explanation:

The $25 fee would be paid straight forward so you could do $85-$25=$60

this means Sam has $60 left and $15 per day would give them 4 days

$15 x 4 = $60

what is the geometric mean of 0.5 and 2

Answers

Answer:

5

Step-by-step explanation:

Pls help I’ll give 100 points

Answers

Answer:

48

Step-by-step explanation:

Answer:

48!!!

Step-by-step explanation:

2(27+1 /7) +5*8

2(28/7)+5*8

28/7=4

2(4)+5*8

8+40

=48

Please answer this question

Answers

Answer:

Properties of operations help a lot in solving problems related to integers and rational numbers. Step-by-step explanation: ... These properties are used to solve problems involving rational numbers as well as integers. These properties are associative,commutative, distributive and identity.

Step-by-step explanation:

pls give me brainliest

What is 5/7 x 14/20 equal

Answers

Answer:

5/7 x 14/20= 1/2 or 0.5

2. William's cell phone bill was $135.65. He had to pay $45 for
the plan and then pay per gigabyte. He used 5 gigabytes. How much
did he pay per gigabyte?

Answers

Answer:

gjkddjygdbdbexbdbdbdheeh$70

Take away the monthly $45 cost of the cell phone plan, and you see that he paid $90.65 for the 5 gigabytes of data that he used...to find what he paid per gigabyte, $90.65 / 5 = $18.13 per gigabyte.

36/42 = 24/r what is r

Answers

Answer:

r=28

Step-by-step explanation:

36/42 = 24/r (determine the defined range)

36/42 = 24/r , r ≠ 0 ( Reduce the fraction)

6/7 = 24/r (cross multiply)

6x = 168 ( divide both sides)

r=28 , r ≠ 0

Answer:

r = 28

Step-by-step explanation:

Cross multiply and solve for r:

[tex]\frac{36}{42}[/tex] = [tex]\frac{24}{r}[/tex]

36r = 1008

r = 28

So, r = 28


[tex] {x}^{2} - 25 = 0[/tex]

Answers

what is the question supposed to be

Simplify the expression by combining like terms.

3.6x+5.9−2.2−1.7x

Answers

Answer:

1.9x+3.7

Step-by-step explanation:

Subtract 3.6x-1.7x

and 5.9-2.2    

The solution is 1.9x + 3.7

The value of the equation is given as A = 1.9x + 3.7

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

A = 3.6x + 5.9 - 2.2 - 1.7x   be equation (1)

On simplifying the equation , we get

On grouping the similar terms

The value of A = ( 3.6x - 1.7x ) + ( 5.9 - 2.2 )

The value of A = 1.9x + 3.7

Therefore , the value of A is 1.9x + 3.7

Hence , the equation is A = 1.9x + 3.7

To learn more about equations click :

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A video game store was getting rid of old games, selling them 5 for $73.50. If they sold 3 games, how much moneh would they have made?

Answers

Answer:

$45.30

Step-by-step explanation:

Divide $73.50 by 5 = $15.10

Multiply $15.10 by 3 = $45.30

Answer:

44.1

Step-by-step explanation:

73.50/5=14.7

14.7x3=44.1

The school is landscaping an area for a soccer field. If the
dimensions are 60 feet by 35 feet. What is the area of the soccer
field?

Answers

Answer: 2100 square feet

Step-by-step explanation: 60 x 35=2100

Answer:

2100 ft squared!

Step-by-step explanation:

The formula to find the area of a rectangle is L * W = A

Where A is the total area, and L and W are the dimensions.

Since we know what the dimensions of the rectangles are, we can replace L and W to find out the area. This will look like this: 60 * 35 = A

Now we just have to multiply 60 and 35 to find A. This will simplify to 2100, which means the total are of the rectangle, or in this case, the soccer field, is 2100 ft squared!

What is the surface area of this shape?​

Answers

The answer is 67

Add all the sides up and you get 67

Pls help :(

Clare and Han are discussing how to find the missing lengths. Clare says she is using similarity. Han says he is using the Pythagorean Theorem.

Find the missing sides

Answers

Answer:

similarity

Step-by-step explanation:

look , dude

the two triangles have the following features:

the angle B= angle C = 90 degree

the angle A= the angle F

so  the third angle in the first triangle = the third angle in the second triangle

so you have one condition of similarity which is the three angles are equal

to get the answer for lengths :

ab/fe= constant of proportionality

thus ab/fe=2.5/5=.5

so ac/13=.5 thus ac=6.5

and 6/de=.5 so de=12

Both similarity and Pythagorean theorem can be used to find the missing lengths as AC = 6.5 and DE = 12.

What are Similar Triangles?

Similar triangles are those triangles which has the same shape but different size.

The length of sides and angles are proportional in similar triangles.

Pythagorean theorem states that for a right angled triangle,

Hypotenuse² = Base² + Altitude²

AC² = BC² + AB²

AC² = 6² + 2.5²

AC² = 42.25

AC = √(42.25) = 6.5

Similarly,

DF² = DE² + EF²

13² = DE² + 5²

DE² = 13² - 5²

DE² = 144

DE = √(144) = 12

If we are using the concept of similarity, ratio of corresponding sides are equal for similar triangles.

AB / EF = BC / DE = AC / DF

2.5 / 5 = 6 / DE = AC / 13

Consider 2.5 / 5 = 6 / DE

Then DE = (6 × 5) / 2.5 = 12

Consider AB / EF = AC / DF

2.5 / 5 = AC / 13

AC = (2.5 / 5) × 13 = 6.5

Hence the missing lengths are AC = 6.5 and DE = 12.

To learn more about Similar Triangles, click :

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Which of the following is NOT a solution to the system of inequalities?
1. (0, 4)
2. (1, 2)
3. (2, 1)
4. (1, 5)

Answers

Answer:

3. (2, 1)

Step-by-step explanation:

The solutions are the points located inside the shaded region. The only point not located in that region is the point (2, 1). Therefore, (2, 1) is not a solution to the system of inequalities.

If the point (4,-2) Is Included in dun
OA. (4,2)
OB. (-4,-2)
OC. 12,-4)
OD. (-2,4)

Answers

The answer is (4,2) because it just is

Need answer to this question please

Answers

Answer:

33

Step-by-step explanation:

4:7

7+4=11

11 parts

24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40

there are 33

33 is a multiple of 11

please give me brainliest!!<3

Answer:

i would go to khan academy and look up the topic your learning about.  I think sal (the creators of the videos) has a video on this!!

The length of an island is decreasing a rate of 16 inches per year. How many years will it take for the change in length of the island to be -364 inches? Answer value

Answers

Answer: 23 years

Step-by-step explanation:

From the question, we are informed that the length of an island is decreasing a rate of 16 inches per year. The number of years that it will take for the change in length of the island to be -364 inches would be gotten by dividing 364 by the rate of decrease every year which is 16 inches. Therefore, this would be:

= 364 / 16

= 22.75 years

= 23 years approximately

9) How many 2/5 s can you get from 4/5?​

Answers

2/5 + 2/5 = 4/5

So, 2

“How many 2/5 are in 1?”

I love the easy ones!

The real math folks generally ignore them I guess because the easy ones are not worth their time, leaving said easy ones to dilettantes like me, who then look smarter-than-I-really-am to the noobies.

Love the easy ones.

So, to the question: How many two-fifths are in one?

Well now. How shall we handle this? Hmm…

I know! Let's count the fifths (just numbers, no booze), because it's probably as good a way of getting to an answer as any other way, the question is about fifths, and counting the fifths will at least give us a picture of what we're dealing with here.

Let's jump ahead, to see where we want to end up:

We want to end up with five fifths, also known as 5/5, because 5/5 is the same as 1. How do I know that 5/5 is the same as 1? Well, I know (you'll just have to trust me on this) because saying “5/5” is the same as saying “5 divided by 5”, and saying “1/2” is the same as saying “1 divided by 2", and so on. This is true for all fractions.

So: if 5/5 is the same as 5 divided by 5, then 5/5 equals 1. (You can see why, right? Any number divided into itself is equal to one; also, five goes into five exactly one time!).

And counting the fifths,

1/5 + 1/5 + 1/5 + 1/5 + 1/5 = 5/5 = 1

Or, to count them another way,

1/5 + 1/5 = 2/5

2/5 + 1/5 = 3/5

3/5 + 1/5 = 4/5

4/5 + 1/5 = 5/5

Now that we can see what's inside of that 5/5, let's count how many two-fifths are in five-fifths by adding 2/5 together until we get as close to 5/5 as possible without going over:

2/5 + 2/5 = 4/5

leaving just 1/5 remainder, meaning that there are two 2/5 in 5/5.

We can see that that is true and correct by looking at our little counting exercise above.

Now to make sure our reasoning is clear let's count our fifths again, this time slightly rearranging the way we write the numbers, and then taking things one step further:

(1/5 + 1/5) + (1/5 + 1/5) + 1/5 = 5/5

(2/5) + (2/5) + (1/5) = 5/5

And there it is: there are two 2/5 in 1!

So let's complete the addition for the sake of those like myself who need to see these things through to their furthest conclusion:

(2/5) + (2/5) + (1/5) = 5/5

4/5 + 1/5 = 5/5

5/5 = 5/5

5/5 = 1

1 = 1. And 2/5+2/5=4/5.

how do i solve -3x + 2y = -4

Answers

Answer:

y= 3/2 x -2

Step-by-step explanation:

I guess you want to find the y=mx+b form

So you do +3x on both sides which will gave you: 2y= 3x-4

Then, you will divide by two on both sides to find the y value: 2y/2 = (3x-4)/ 2

So 3/2 is the fraction like the answer above and -4/2 = -2

Hope that helps :)

Solve for n.
[tex]\frac{2n-3}{5}[/tex]=5

Answers

1.) [tex]\frac{2n-3}{5} = 5[/tex]

/ 5          /5

(2n - 3) = 1

      +3     +3

2n = 4

/2      /2

n = 2    <--- your answer

What is the sum of the measures of the interior angles of a 7-gon?

Answers

Answer:

900°

Step-by-step explanation:

What is the sum of the measures of the interior angles of a 7-gon?

The formula to measure the interior angles of a polygon

= (n- 2) × 180 °

Where,

n = number of sides

We are given 7 - gon

This means it has 7 sides = Heptagon

Hence,

The measure of the interior angle is given as:

(7 - 2) × 180°

= 5 × 180°

= 900°

The sum of the interior angles of a 7-gon is 900°

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