Mathematics High School

2a + 3b = 5
b = a - 5
How would I solve this ?

2a + 3b = 5b = A - 5How Would I Solve This ?

Answers

Answer 1

Let me help ya

Step-by-step explanation:

lol I do iready too so first replace the varbile with what ever number they have then you multiply it

Answer 2
5 the answer isieirjjfjriroeoeoeoosodkdkririeje

Related Questions


Explain how to solve the equation 21 = m +14. What is the value of m?
Enter your explanation and answer in the space provided.

Answers

Answer:

m = 7

Step-by-step explanation:

21 = m + 14

21 - 14 = m

m = 7

simplify this equation: 2^-4 (2√3)^2

Answers

Answer:

download photo math you can take pictures of math problems and will solve them.

if you could anwser the second question that would be great caus e i only get to do this proble once :) no explanation needed

Answers

Angle 1 and 2 are equal because of correspondence angle

so , (78-2x) = (89-3x)

x = 89 - 78

x = 11

hence angle 1 = ( 78 - 2*11) = 56

and angle 2 = ( 89-3*11) = 56

So, both of angle is 56

hope it help and your day will full of happiness

find the product of (x-3)^2

Answers

Answer:

x^2 - 6x + 9

Step-by-step explanation:

(x-3)^2

(x-3)(x-3)

x^2 -3x -3x + 9

x^2 - 6x + 9

^2 means (x - 3) times itself twice.

(x - 3)(x - 3)             multiplying polynomials- Firsts, Outs, Inners, Lasts (FOIL)

                                 Firsts (x* x)   Outs (x*-3)   Inners (-3 * x)   Lasts (-3*-3)

xx -3x -3x +9            Combine like terms.

      -3x -3x             Adding/subtracting integers- same signs means you add          

                                     and keep the sign.

x^2 -6x + 9              

Evaluate the algebraic expression x^2 - 20 for x = 7 and for x = 9

Answers

Answer:

29

61

Step-by-step explanation:

x^2 - 20

x = 7 and 9

Evaluate

___________

We know the values of x, let's substitute them with the x in the problem :

(7)^2 - 20

49 - 20

29

(9)^2 - 20

81 - 20

61

102 = 1.2 x w
what is w?

Answers

Answer:

122.4

Step-by-step explanation:

Just Divide.

Answer:

85

Step-by-step explanation:

1x2 x 85 = 102

Which is the graph of y = 3sqrt/X+1 - 2?

Answers

Look at the graph i sent you.

Graph of : y = 3sqrt(x+1) - 2

It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on her drive to school?

Answers

Answer:

64 km/hr

Step-by-step explanation:

HELP I WILL GIVE LOTS OF POINTS FOR IT

Answers

Answer:

(1,3)

Step-by-step explanation:

because that is where they intersect

Answer:

y=4x-1y=−x+4

Step-by-step explanation:

You travel 36 miles north and then 15 miles east. How far are you from your starting point?

Answers

Answer:

21 is the correct answer because

In a sale all the prices are reduced by 30%. Calculate the sale price of the following items
a bike that cost £250
b. a pair of gloves that cost £3.20

Answers

Answer:

A: 26.89

B: 0.96

Step-by-step explanation:

70 percent of 250 is 26.89. 70 percent out of 3.20 is 0.96.

what is the degree of the following polynomial 2x^3

Answers

Answer:

3

Step-by-step explanation:

Whatever the highest exponent is determines the degree.

pls help me i only have 5 minutes

Answers

Give instructions about sound, lighting etc

help please!! (math)

Answers

Answer:

It's gonna be C and good luck!

the answer is C lovely

A number n increased by 4 is -19

Answers

Answer:

n=23

Step-by-step explanation:

4-23=19

meme

Answer:

-23

Step-by-step explanation:

-23+4= -19


Can I get help on this math problem makes makes no sense

Answers

(2,-1) The intersecting point is the point where the two lines meet.

A jacket is reduced by 12% to £66 in a sale.
Find the original price.

Answers

Answer:

£75

Step-by-step explanation:

100-12=88

88÷88=1%

66÷88=0.75

1%=0.75

times by 100

100%=£75

MATH HELP!! ASAP!!! MARKING BRIAINLIEST!!

Answers

Answer:

18 meters.

Step-by-step explanation:

The ratio is 1cm:2m, so for every centimeter, you multiply it by 2 and convert it to meters. So, 9 cm time 2 equals 18 and then add meters, so 18 meters.

(hope this helps :P)

How can you find the length of an arc

Answers

Start by dividing the arcs central angle in degrees by 360. Then, multiply that number by the radius of the circle. Finally, multiply that number by 2 x pi to find the arc length.

NEED HELP ASAP
A quarterback’s pass-completion percentage is 70%. Eight of his passes are randomly selected. What is the probability that 6 of them were successful passes?

0.06
0.08
0.12
0.30

Answers

Answer:0.08

The answer is b i always got your back

Step-by-step explanation:

Answer:

.30

Step-by-step explanation:

-7m²-10m+17
common factor

Answers

Answer:

Greatest common factor of 17

So, the prime factors of 45 are 3, 3, and 5. The Greatest Common Factor is the greatest number that is common (that is, in both lists). It is 17. Since 17 is a factor of itself and of 51 -- which is 3 x 17 -- then the greatest possible common factor is 17!

Step-by-step explanation:

Add and subtract the second term to the expression and factor by grouping.

- (m - 1 )( 7m + 17 )

A driver was going more then 15 miles per hour over the speed limit when he received a speeding ticket. If the driver's speed was 75 miles per hour, what was the speed limit, m, on the road where he was driving.

I need help with this ASAP!

Answers

Answer:

60

Step-by-step explanation:

You just subtract 75 - 15, and you get 60. I hope this helps :)

Camille's birthday party will cost $32 if she invites 16 guests. How many guests can there be, at most, if Camille can afford to spend a total of $48 on her birthday party? Assume the relationship is directly proportional.

Answers

Answer:

I think its gon be 24 guests

Answer:

24 people can be there at most :)

Step-by-step explanation:

$32 divided by 16(guests) is $2

so its $2 per person

so 48$ divided by $2 is 24

So Camille can invite 24 people at the cost of 48$ being her total at most :)

7. What is the slope of the line that passes through the points (14, -18) and (5, -12)?​

Answers

Answer:

slope =[tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

Use the slope formula [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex] to find the slope, or [tex]m[/tex]. The [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point, and the [tex]x_2[/tex] and [tex]y_2[/tex] represent the x and y values of another point. So, substitute the x and y values of the points (14, -18) and (5, -12) into the formula and solve:

[tex]m = \frac{(-12)-(-18)}{(5)-(14)}\\m = \frac{-12+18}{5-14}\\m = \frac{6}{-9} \\m = -\frac{2}{3}[/tex]

Thus, the slope is [tex]-\frac{2}{3}[/tex].

5x+4y=16 -2x-4y=-4
Show your step by step process.
Solve the system of linear equations.​

Answers

Answer:

x=1 and y= 5[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

To solve this, lets take the first equation and find the x value.

Because it is ordered in standard form, we need to convert to slope-intercept form, and isolate the y.

5x+4y=16

-5x       -5x

4y=-5x+16

÷4   ÷4  ÷4

y=[tex]\frac{-5}{4}[/tex]+4

or

y=-1[tex]\frac{1}{4}[/tex]+4

or

y= 5[tex]\frac{1}{4}[/tex]

Now that we have the y value, we can use this to find the x value by inserting it into either equation, since they both have y values in them. Going with the first one again, lets try it:

5x+4([tex]\frac{-5}{4}[/tex]+4)=16

5x-5+16=16

5x+11=16

    -11 -11

5x=5

÷5 ÷5

x=1 and y= 5[tex]\frac{1}{4}[/tex]

Mario is 4 feet 9 inches tall. What is his approximate height in centimeters? (1 in. ≈ 2.54 cm)

Answers

Answer:

144.78cm

Step-by-step explanation:

4ft 9in is 57 inches

so 57x2.54 is 144.78

Answer:

Mario is 12.446 cm

Step-by-step explanation:

If f(1) = 9 and f(n) = 4f(n − 1) then find the value of f(4).

Answers

Answer:

576

Step-by-step explanation:

f(2) = 4f(1) = 4*9 = 36

f(3) = 4f(2) = 4 * 36 = 144

f(3) = 4f(3) = 4 * 144 = 576

What is the slope of the line below asap plzzzzzzzzzzzzzzzzzzzzz quick

Answers

Answer:

w of king akinf arro

Step-by-step explanation:

Remember to do run (x) then jump (y).


This is where you find two parts of the line that hit a corner and find the x and y for them.


The question already tells us this. Remember that the x always goes first and that if the line is going down (left to right), the slope is a negative.


Answer: -2/3


Answer:

Please Help. Im stuck on this question and i cant figure it out

Answers

Answer:

Where is it?

Step-by-step explanation:

Where is the question exactly?

Ali has invited 18 adults and 6 children to a cookout.
Mo, Ali’s best friend, suggests that Ali seat an equal number of adults and an equal number of children at each table.
What is the greatest number of tables Ali could use? How many adults and how many children would be seated at each table? Explain.

Answers

3 tables and is going to be 6 adults and 3 kids at each because you just have to divide 18 by 6

Answer:

Ali could use 6 tables. There would be 3 adults

and 1 child seated at each table.

Step-by-step explanation:

GCF to find the number of tables:

18: 1, 2, 3, 6 , 9, 18;

6: 1, 2, 3, 6 .

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