9a-ab+5b
if a=2 and b=7​

Answers

Answer 1

Answer:

39

Step-by-step explanation:

9a=18    ab=14     5b=35

18-14+35=39

Answer 2

Answer:

39

Step-by-step explanation:

9a-ab+5b

a=2 and b=7

we substitute the variables with their real numbers

9(2)-(2 x 7)+5(7)

from here we just simplify the equation

18-14+35=39


Related Questions


After distributing the terms (2x + 3) (4x – 5), you get a new expression of the form
ax+ bx + c
What is the value of a?
What is the value of b?
What is the value of c?

Answers

Answer:

Value of a = 8

Value of b = 2

Value of c = - 10

Step-by-step explanation:

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

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

[tex] = > 8 {x}^{2} - 10x + 12x - 15[/tex]

[tex] = > 8 {x}^{2} + 2x - 10[/tex]

As per the general form of a quadratic eqn. [tex]a {x}^{2} + bx + c[/tex]

Value of a = 8

Value of b = 2

Value of c = - 10

what property is 8a+4=4+8a

Answers

Answer: All real numbers are solutions

Step-by-step explanation:

find the sum 59.34+1.85​

Answers

Answer:

61.19

Step-by-step explanation:

59.34+1.85=61.19

Answer:

61.19

Step-by-step explanation:

59.34+1.85=61.19 if this is correct i hope this does help u in simple mathematics

Enter the value of 33 - 8 ÷ 4?

Answers

Answer:

31

Step-by-step explanation:

Following PEMDAS: Do the division first followed by the subtraction.

[tex]33-8\div4=33-2=31[/tex]

Answer:

31

Step-by-step explanation:

You would have to do 8 divided by 4 then you would have to subtract that answer by 33.So  8 divide by for is 2 so 33-2= 31.

How do you solve this 5b-28>27

Answers

b>11 hope this helps :)


4x + 6
7x+ 15
AC = 120. What
are AB and BC?

Answers

Answer:

AB = 42

BC = 78

Step-by-step explanation:

AB = 4x + 6

BC = 7x + 15

AC = 120

A to B plus B to C is the same distance as from A to C, which is 120.

AB + BC = AC

(4x + 6) + (7x + 15) = 120

4x + 7x + 6 + 15 = 120

11x + 21 = 120

Subtract 21 from both sides.

11x = 120 - 21 = 99

11x = 99

Divide both sides by 11.

x = 9

AB = 4x + 6 = 4*9 + 6 = 36 + 6 = 42

BC = 7x + 15 = 7*9 + 15 = 63 + 15 = 78

Answer:

AB = 42

BC = 78

Answer:

x = 9

AB = 42

BC = 78

Step-by-step explanation:

AB + BC = AC

4x + 6 + 7x + 15 = 120

11x + 21 = 120

11x = 99

x = 9

AB = 4x + 6 = 4(9) + 6 = 36 + 6 = 42

BC = 7x + 15 = 7(9) + 15 = 63 + 15 = 78

The temperature went from -12°F to 18°F. How much did the temperature change?

Answers

Answer: the temperature went up by +30

Step-by-step explanation:

Use number properties to simplify the following expression.

-5 + (5 + 3)

In the box below, show each step in simplifying the expression and explain which property you used in each step.

plzzzz help will give brain list !!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

3

Step-by-step explanation:

the answer is 3, because you always have to add the numbers in paranthises first. and 5+3= 8. u bring down the -5 and you have -5 + 8 = 3.

Answer:

3

Step-by-step explanation:

Always do the stuff in the parentheses first

-5 + (5 + 3)

-5 + 8

= 3

Leroy took a total of 10 pages of notes during 5 hours of class. In all, how many hours will Leroy have to spend in class before he will have a total of 20 pages of notes in his notebook? Solve using unit rates.

Answers

Answer:

20:10 10 hours

Step-by-step explanation:

10:5 * 2 = 20:10 or 10:5 / 5 : 2:1 * 20 = 20:10

In the expression 4x+ 2y -3x +5y^2 +3z- 4z^2
O 2y and 5y2
0 4x and -3x
0 -3x and 32
3z and 4z^2

Answers

Answer:

               4x and -3x

Step-by-step explanation:

We can simplify only like terms in an algebraic expression.

Terms are "like terms" only if they consist the same letters with the same exponent.

The only difference between like terms is their coefficients are different.

So:

2y and 2y² are not like terms (different exponents at y)

4x and -3x  are like terms (the same letter, the same exponent)

-3x and 32 aren't like terms (no x with 32 means different exponents)

or if you meant:

-3x and 3z  aren't like terms (different letters)

3z and 4z² aren't like terms (different exponents at z)

The expression 12.50h+b represents the amount of money in her savings account after she deposits her next paycheck. What does b represent in the expression? A. new savings account balance B. number of hours worked C. hourly pay rate D. current savings account balance

Answers

Answer:B number of hours worked

Step-by-step explanation:

It says after she puts in her next paycheck therefore she needs to work hours to get paid

7x + (9x + 8) = (7x + 9x) + 8 is what property

Answers

Nensjsjdjejdjejejejejejsj &2828388338484738388338383838 sksksksjsnsksnenenenendnjdjfjffjdjrjdjdjdjdjdjdjdjdidjdjdiddijjJj$&2383884845$ fififitogosoenrndidjfnncifmrki938474859499494

Write an equation for the description.
The difference between a number x and 18 is 23.

Answers

X-23=18

Because difference means subtract

Simplify by combining like terms.
6r+3s+2s+4r​

Answers

10r+5s i think. :)))

Answer:

In combining like terms=6r+4r. 2s+3s

Making it=10r and 5r.

This method is used in like questions. Similar ones

Algebraic expression also.

Ask if you need further explanation.

Please,a Brainliest

is 6.3434 rational or irrational

Answers

Answer:

it is a rational number

Step-by-step explanation:

pls help i will give u brainliest!! ^_^

Answers

I know a is d= 11760, I’m sorry, I can’t figure out b. :/
Please mark me as brainliest.
Hope this helps!!
Answer: b = 8.317 x 10^-4

4(5a-2b)-2(4a-5b)


Expand the brackets and simplify the question

Answers

Answer:

12a+2b

Step-by-step explanation:

1. Expand by distributing terms.

20a-8b-2(4a-5b)20a−8b−2(4a−5b)

2. Expand by distributing terms.

20a-8b-(8a-10b)20a−8b−(8a−10b)

 3. Remove parentheses.

20a-8b-8a+10b20a−8b−8a+10b

4.Collect like terms.

(20a-8a)+(-8b+10b)(20a−8a)+(−8b+10b)

5. Simplify.

12a+2b12a+2b

6.Answer

12a+2b

The answer is 12a+2b

That is the answer because:
Following the distributive property
4*5a=20a
4*-2b=-8b
-2*4a=-8a
-2*-5b=10a
So now you have
20a-8b-8a+10a
So combine like terms
12a+2b

Which of these can change while you’re reading?


A. The sound associated with each letter


B. Your purpose


C. The meaning of the words


D. Your reciting voice

Answers

Answer:

It’s B

Step-by-step explanation:

Plz help ASAP I need to get this done

Answers

Jacques should have gotten a negative answer when he divided -12 by -9

The map below shows the length of a proposed land bridge at Phil Hardberger Park. The length of the land bridge is represented by PH
in the map below.
P(2,55)
H(32, 15)
On the map, each unit represents 1 yard. To the nearest yard, what is the actual length of the land bridge from P to H?
A 50 yards
B. 150 yards
C. 78 yards
D. 234 yards

Answers

Answer:

A; the actual length of the land bridge from P to H is 50 yards

Step-by-step explanation:

Here in this case, given the coordinates of P and H, we want to calculate the actual length of the distance between the two points.

Mathematically, to calculate this distance, we make use of the distance formula;

D = √(x2-x1)^2 + (y2-y1)^2

In this case, (x1,y1) = (2,55) while (x2,y2) = (32,15)

Substituting these values

D = √(32-2)^2 + (15-55)^2

D = √(-30)^2 + (-40)^2

D = √(900 + 1600)

D = √(2,500)

D = 50 units

Now, we know that each units represent 1 yard, thus 50 units will represent 50 * 1 = 50 yards

please help asap :-)

Answers

X: 22

m<( 19x + 3):  22

m<( 9x + 16): 25

m<( 6x + 15): 21

How many types of triangle ? write names

Answers

Answer:

equilateral triangle

scalene triangle

acute triangle

isosceles triangle

obtuse triangle

right triangle

Christian's car used 15 gallons to travel 270 miles. How far can he travel on 11 gallons? helps

Answers

Answer:

198 miles

Step-by-step explanation:

1 gallon gets 18 miles, 18 times 11 equals 198

Greg can drive 160 miles with 5 gallons of gas how many miles can he drive on one gallon of gas​

Answers

Answer:

160 / 5 = 32 miles

Step-by-step explanation:

convert 5 milligrams Into grams

Answers

Answer:

500 grams

Step-by-step explanation:

will be the answer

hp it helps you

Answer:

0.005

Step-by-step explanation:

can someone teach me how to solve this? the lesson didnt show anything about it

Answers

The answer is 10

work:
3x+15=5x-5
-3x+5 -3x+5
20=2x
20/2 2x/2
10=x

Helppp!!! Which factor is important to consider when buying a car for commuting long
distances to work?

Advertising campaigns
O Horsepower
O Exterior color
Maintenance plan

Answers

Answer:

I'd say maintenance plan.

Step-by-step explanation:

I know I'm super late but maintenance plan is important for long distances incase something goes wrong while you're too far from home or something.

A maintenance plan is important to consider when buying a car for commuting long distances to work.

What is a Car?

The car is a four-wheeled road vehicle that is powered by an engine and is able to carry a small number of people.

How to solve it?

The maintenance plan is important for long distances in case something goes wrong while you're too far from home or something.

Learn more about Car:

https://brainly.com/question/19060007

#SPJ2

4. What is the prime factorization of 610?​

Answers

Answer: Positive Integer factors of 610 = 2, 5, 10, 61, 610 divided by 2, 5, 61, gives no remainder. They are integers and prime numbers of 610, they are also called composite number.

Step-by-step explanation: In the answer hope it helps


©Peter, Bridget and Caroline share some sweets in the ratio 2:5:2. Peter gets 14 sweets. How
many did Bridget get

Answers

Answer: 35 sweets

Step-by-step explanation:

2:5:2= 9

peter= 2/9 x a= 14

it then turns to

9/2 x 14= 63

so bridget will get:

5/9 x 63

35 sweets

is 0.19 rational or irrational?

Answers

Answer:

this number is rational because you can write it as a fraction 19/100

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