The second of two numbers is five more than twice the first. There sum is 80 . Find the numbers.

Answers

Answer 1

The first number = x

The second number = 5 + 2x

80 = x + 5 + 2x

Let's combine like terms.

80 = 3x + 5

Subtract 5 from both sides.

75 = 3x

Divide both sides by 3

25 = x

The first number = 25

Let's plug 25 into x for our second number's equation.

The second number = 5 + 2(25) = 55

Answer 2

Answer:

x = first number

y = second number

1. y = 2x +5

2. x = x

3.  x + 2x + 5 = 80

4. 3x +5 = 80

5. 3x = 75  

x = 25

sub back in to steps 1 and 2:

x = 25

y = 2(25) + 5

y = 55

the first number is 25, and the second number is 55.

CHECK:

80 - 25 = 55

Step-by-step explanation:

1. define your variables

2. use the question to find what each number equals

3. set them equal to 80

4. combine like terms, divide, etc. (SOLVE)

5. sub back into defined variables.

6. check it by subtracting and adding


Related Questions

Help me with this plz

Answers

The answer is number 1.

Answer:

all of them are except for the first one

Step-by-step explanation:

In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.

Demostración de cada una de las conclusiones de los siguientes razonamientos Por medio de inferencias lógicas. Si los secuestradores se cansan, se ponen nerviosos. Si los secuestradores están armados y se ponen nerviosos, la vida de los rehenes corre peligro. Los secuestradores están cansados y armados. Por consiguiente, la vida de los rehenes corre peligro.

Answers

Answer:.

Step-by-step explanation:Z

Rachel types a 162 words in 18 minutes. Rachel types at a constant rate. How many words does Rachel type per minute

Answers

Hi!

Your answer Would be: about 20 words per minute.

Reason Being: 162 divided by 18 is 20.25, which is about 20 if you round to the nearest number.

162 divided by 18 is 20.25, which is about 20 if you round to the nearest number.162 divided by 18 is 20.25, which is about 20 if you round to the nearest number.also, 20.25 x 15 = 162.

162 divided by 18 is 20.25, which is about 20 if you round to the nearest number.162 divided by 18 is 20.25, which is about 20 if you round to the nearest number.also, 20.25 x 15 = 162.162 divided by 18 is 20.25, which is about 20 if you round to the nearest number. Also, 20.25 x 15 = 162.Therefore, the answer is 20.

Hope this helps!

Let me know if you need any more help, Id be delighted to!

Yours Truly,

~~~PicklePoppers~~~

6. The cost to rent a room for a party is a one-time fee
of $90 plus $60 per hour for a DJ. If the cost of the party
was $300, how many hours did they have the DJ?

Answers

x = # of hours the DJ was booked

$90 + $60x = $300

Subtract $90 from both sides.

$60x = $210

Divide both sides by $60

x = 3.5 hours

They had the DJ for 3.5 hours

Mendel crossed peas having round seeds and yellow cotyledons (seed leaves) with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. Based on this cross, what is the probability that an organism in the F2 generation will have round seeds and green cotyledons and be true breeding? Mendel crossed peas having round seeds and yellow cotyledons (seed leaves) with peas having wrinkled seeds and green cotyledons. All the F1 plants had round seeds with yellow cotyledons. Based on this cross, what is the probability that an organism in the F2 generation will have round seeds and green cotyledons and be true breeding? 1/16 1/32 1/8 1/4

Answers

Answer:

1/16

Step-by-step explanation:

This question involves two distinct genes; one coding for seed shape and the other for cotyledon color. The alleles for round seeds (R) and yellow cotyledons (Y) are dominant over the alleles for wrinkled seed (r) and green cotyledon (y) respectively.

In a cross between a truebreeding (i.e. same alleles for both genes) pea having round seeds and yellow cotyledon (RRYY) and a truebreeding pea having wrinkled seeds and green cotyledon (rryy), the F1 offsprings will all possess a heterozygous round seed and yellow cotyledon (RrYy).

The F1 offsprings (RrYy) will produce the following gametes: RY, Ry, rY, and ry. Using these gametes in a punnet square (see attached image), 16 possible offsprings will be produced in a ratio 9:3:3:1.

According to the question, 3/16 of the F2 offsprings will possess round seeds and green cotyledons, however, only 1 of them will be truebreeding i.e. RRyy. Hence, 1/16 of the F2 offsprings will be truebreeding for round seeds and green cotyledons.

h(x) = 4x + 5
g(x) = 3x + 5
Find (h + g)(-2)

Answers

Answer:

[tex]-4[/tex]

Step-by-step explanation:

So we have the two functions:

[tex]h(x)=4x+5\text{ and } g(x)=3x+5[/tex]

And we want to find:

[tex](h+g)(-2)[/tex]

This is the same as:

[tex]h(-2)+g(-2)[/tex]

Let's substitute them for their functions:

[tex]=(4(-2)+5)+(3(-2)+5)[/tex]

Multiply:

[tex]=(-8+5)+(-6+5)[/tex]

Add:

[tex]=-3-1[/tex]

Subtract:

[tex]=-4[/tex]

And we're done!

number 3 please solve and explain

Answers

Answer: -12.5

Step-by-step explanation:

x(2y-3) and x=2.5 and y=-1

so you fix in the figures so it will turn to

2.5(-2-3)

so then you open the brackets with 2.5

-5-7.5

Answer: -12.5

Free Brainliest 2

a;ljdk;lajk;lsdjf;laj;sdkjad;fdj;j;dsj;f

Answers

this is not a question so you can’t get an answer sorry.

Answer:

Hi, the answer is a;ljdk;lajk;lsdjf;laj;sdkjad;fdj;j;dsj;f equaling 21

Step-by-step explanation:

Solve the equation n/3-4=2

Answers

Answer:n=18

Step-by-step explanation:

The answer to this question is N=18

Is 5.14 rational or irrational

Answers

Answer:

5.14 is irrational

Step-by-step explanation:

This is irrational because it is a decimal and/or a fraction, and a rational number is a whole number such as 1, 7, 32.

Is this correct? Thanks.

Answers

Answer:

yes it is

Step-by-step explanation:

hope it will help you if yes so make brainlist

In the function y = a(x – h)2 + k
which variable controls the horizontal shift?
1)H
2)K
3)A
4)X

Answers

Answer:

h is the horizontal shift

Step-by-step explanation:

y = a(x – h)^2 + k

This is the equation for a parabola in vertex form

The vertex is ( h,k) and it is shifted from (0,0)

h is the horizontal shift and k is the vertical shift

Answer:

H

Step-by-step explanation:

y=a(x-h)2+ka= Vertical stretch or shrinkage(IaI>1) or (0<a<1) h= Horizontal shift(x-h=0)x=hK= Vertical shifty-value* a+kadd k to the "new: values of y

37.44 +3.79 + 24.1
37.44
3.79
+ 24.1
37.44
3.79
+ 24.1
(Type a whole number or a decimal.)

Answers

the answer would be 195.99

what is 1.584x10 to the seventh power is in standard notation.
a.1.584
B.1,584
C.15,840,400
D.158,400,00​

Answers

Answer:

None

Step-by-step explanation:

Thats not how math works

The proper answer would be 15,840,000,000

Three sides of a quadrilateral are the same length, . The length of the fourth side is 7 inches The perimeter of the quadrilateral is 40 inches, write a equation thats represents the solution

Answers

Answer:

It’s 11 inches

Step-by-step explanation:

I had the question

The equation that's represents the solution is 3x+ 7= 40.

What is Algebra?

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

The perimeter of the quadrilateral is 40 inches.

The length of the fourth side is 7 inches

let the length of three equal sides are x unit each.

So, Perimeter of Quadrilateral = 40

x+ x +x + 7 = 40

3x = 33

x= 11

Hence, the equation is 3x + 7= 40.

Learn more about Algebra here:

https://brainly.com/question/24875240

#SPJ2

At a carry-out pizza restaurant, an order of 3 slices of pizza, 4 breadsticks, and 2 juice drinks costs $13.35. A second order of 5 slices of pizza, 2 breadsticks, and 3 juice drinks cost $19.50. If four breadsticks and a juice drink cost $.30 more than a slice of pizza, what is the cost of each item?​

Answers

Answer: Pizza = $2.95, Breadstick = $0.50, Juice = $1.25

Step-by-step explanation:

Let P represent the cost of a slice of pizza

and B represent the cost of breadstick

and J represent the cost of a juice drink.

EQ1: 3P + 4B + 2J = 13.35

EQ2: 5P + 2B + 3J = 19.50

EQ3: 4B + J = P + 0.30     -->     P - 4B - J = -0.30

Let's eliminate B from EQ1 and EQ2 to form EQ4:

3P + 4B + 2J = 13.35   →  1(3P + 4B + 2J = 13.35)   →   3P + 4B + 2J =  13.35

5P + 2B + 3J = 19.50  → -2(5P + 2B + 3J = 19.50)  →  -10P -  4B -  6J = -39.00

                                                                        EQ4:     -7P          -4J    = -25.65

And eliminate B from EQ1 and EQ3 to form EQ5:

               3P + 4B + 2J = 13.35  

                 P -  4B  - J = -0.30

EQ5:       4P           + J  = 13.05    

Now, eliminate J from EQ4 and EQ5 to solve for P:

-7P  - 4J = -25.65  →    1(-7P  - 4J = -25.65)   →   -7P  - 4J = -25.65

 4P  +  J = 13.05   →    4(4P  +   J =  13.05)    →    16P  +4J =  52.20

                                                                             9P          = 26.55

                                                                           ÷9             ÷9    

                                                                                    P = 2.95

Plug in P = 2.95 into EQ4 or EQ5 to solve for J:

EQ5: 4P + J = 13.05

        4(2.95) + J = 13.05

        11.80 + J = 13.05

                   J = 1.25

Plug in P = 2.95 and J = 1.25 into either EQ1 or EQ2 or EQ3 to solve for B:

EQ3: 4B + J = P + 0.30

        4B + 1.25 = 2.95 + 0.30

        4B + 1.25 = 3.25

                   4B = 2.00

                     B = 0.50

Check (since we used EQ3 to find B, use either EQ1 or EQ2):

EQ2: 5P + 2B + 3J = 19.50

       5(2.95) + 2(0.50) + 3(1.25) = 19.50

       14.75 + 1.00 + 3.75 = 19.50

                            19.50 = 19.50     [tex]\checkmark[/tex]

93 + (68 + 7) I really need the whole thing explained.

Answers

Answer:

168

Step-by-step explanation:

93+(68+7)=100+68=168

Ray orders a sandwich at the deli. He needs to choose one type of bread, one type of meat, and one type of cheese from the given menu.

Bread: white or wheat
Meat: beef, ham, or turkey
Cheese: swiss or cheddar

How many different types of sandwiches could Ray choose?

A. 7

B. 8

C. 9

D. 12

E. 27​

Answers

Answer: D. 12

Step-by-step explanation:

The first step here is to find all the possible selections and the number of options for each selection:

bread: 2 options (white or wheat)

meat: 3 options (beef, ham or turkey)

cheese: 2 options (swiss or cheddar)

The total number of combinations (of different possible sandwiches that Ray can order) is equal to the product between the numbers of options for each selection, so we have:

Combinations = 2*3*2 = 12

So the correct option is D.

Answer:

D. 12

Step-by-step explanation:

The options are: 3/10, 65%, 3/7, 70%

Answers

Answer:

70%

Step-by-step explanation:

there are 20 total marbles and only 14 are not blue so 14/20 = 7/10 = 70%

Can someone teach me how to do number 16???

Answers

Answer:

x=0

Step-by-step explanation:

it tells you that

∠LKJ=169

∠SKJ=x+95

∠LKS=74+2x

and by the figure we know that

∠LKJ=∠LKS+∠SKJ

so we have

[tex]169=x+95+74+2x\\\\169=3x+169\\\\169-169=3x\\\\0=3x\\\\x=0[/tex]

LKS + SKJ = LKJ

Substitute the numbers into the equation above.

74 + 2x + x + 95 = 169

Combine like terms

3x + 169 = 169

Subtract 169 from both sides

3x = 0

Divide both sides by 3

x = 0

SKJ = x + 95 = 0 + 95 = 95

LKS = 74 + 2x = 74 + 2(0) = 74 + 0 = 74

LKJ = 169

LKS + SKJ = LKJ

74 + 95 = 169. This proves that x = 0

A line is drawn so that it passes through the points (3, 4) and (0, 5) . What is the slope of the line?

Answers

Answer:

-1/3

Step-by-step explanation:

Y2-Y1 plug in 5-4. 1

---------- ------- = --

X2-X1 plug in 0-3 -3

what is the answer ​

Answers

Answer:

C

Step-by-step explanation:

Just re-draw the triangle reflecting the y-axis

(PLEASE HELP!!!) Which of the following expressions is equivalent to a^6 + b^4? (1 point)

Answers

Answer:

Last option

(a³+ib²)(a³-ib²)

= a^6-i²b⁴

{(x+y)(x-y)=x²-y²}

=a^6+b⁴

{i²=-1}

Nikolai is taking a taxi to school. He has to
pay $3 for the first mile and $1 for every
additional mile How much will Nikolai pay if
he travels five miles?

Answers

7 because the first mile will be 3 dollars then if you add the rest of the miles it will be seven because you are adding four more miles

A child has a bottle full of pennies, nickels,dimes and quarters. There are twice as many quarters as pennies, four times as many nickels as pennies, and five times as many dimes as nickels. How many more dimes does the child have than quarters?

Answers

Answer:19x

Step-by-step explanation:

Take x as the value of pennies

If there are twice as many quarters as pennies then the explanation should be

Pennies =x

Quarters =2x

If there are 4 times as many nickels as pennies then the explanation is

Pennies =x

Nickels =4x

If there are 5 times as many dimes as nickels then the explanation is

Nickels =4x

Dimes=20x

So the values of them all is

Pennies =x

Nickels =4x

Dimes =20x

Quarters =2x

So to get how many more dimes does the child have than quarters you subtract

20x-2x=19x

The Number of dimes the child has more than quarters is; 10 times more.

Let number of pennies be P

Since he has twice as many quarters as pennies, then;

Number of quarters; Q = 2P

Four times as many nickels as pennies. Then;

Number of nickels; N = 4P

five times as many dimes as nickels. Then;

Number of dimes; D = 5N = 5(4P) = 20P

Since number of quarters = 2P

And number of dimes = 20P

Then;

Number of dimes the child has more than quarters is; 20P/2P = 10

Thus, the child has ten times as many dimes as quarters

Read more on proportion at; https://brainly.com/question/25640375

Jessica deposited $2000 into an account with a 7.6% annual interest rate, compared quarterly. Assuming that no withdrawals are made, how long will it take for the investment to grow to $3722?

Answers

Answer:

Step-by-step explanation:

use

i=prt

i=interest

p= principal value

r=rate

t=time

now you want to find time then it will be

t= i/pr

put values

t= 3722/(2000*7.6%)

t= 2 years

calculation is in fraction but your question given you annual interest so time will also be 2 years not in months

Identify the common difference. -6, -3, 0, 3, 6....

Answers

The common difference is +3 because the numbers are growing therefore its going to be positive and -6+3= -3 and -3+3=0 and 0+3=3 and 3+3=6. I hope this answer could help:)

The measue of the supplement of an angle 20° more than three times the measure of the original angle. Find the measures of the angles.
1. The sum of the measures of the two angles is:​

Answers

Answer:

x = orgininal angle

3x +20 = supplementary angle

1. x + (3x+20) = 180

2. 4x + 20 = 180

3. 4x = 160

4. x = 40

The orginial angle is 40

The supplementary angle is 140

Step-by-step explanation:

1. define your varibles using the words given

2. add them together to equal 180, because they are supplmentary.

3. combine like terms.

4. subtract 20

5. divide by 4

6. you find x, now plug it back into your variables at the top:

x = 40

3(40) + 20 = 140

Garrett must inspect a bridge that goes over a river. He begins 18 feet above water level to inspect the lighting, descends 32 feet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base. Which best represents Garrett’s position with respect to the water level?

Answers

Answer:

–18 feet

Step-by-step explanation:

Answer:

-18

Step-by-step explanation:

Seventh grade
Which of the following describe 16.2? Select all that apply.
natural
number
whole number
integer
rational
number

Answers

I’m going to go with Rational number .
Other Questions
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