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aleksandr82 [10.1K]
3 years ago
5

A line passes through the point (4,9) and has a slope of 5/2.

Mathematics
1 answer:
kkurt [141]3 years ago
8 0

Answer:

5/2

Step-by-step explanation:

BRAINLIEST

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B) Make b the subject of the formula a = 4 - 3b​
Ira Lisetskai [31]
A=4-3b
subtract 4 from both sides
a-4=-3b
divide by -3 for both sides
(a-4)/-3 = b
5 0
3 years ago
Read 2 more answers
Stella buys 6 tacos and 4 enchiladas for 52 dollars. Eliana buys 7 tacos and 9 enchilladas for 78 dollars.
Firdavs [7]

Answer:

Let tacos be x and enchiladas be y

6 tacos + 4 enchiladas = 52

becomes

6x+4y=52

^^that's our first equation

Now, the second equation

7 tacos + 9 enchiladas = 78

7x+9y = 78

^^^that's our second equation

Isolate y in the first equation:

6x+4y=52

4y=52-6x

y = (52-6x)/4

^^^Let's call this equation 3

Now, sub-in equation 3 into equation 2

*replace the y*

Equation 2: 7x+9y = 78

Sub-in

7x+ <u>9 ( (52-6x)/4)</u> = 78

Do some algebra (get your x terms on one side) and you will find your x value

7x + <u>117 - 13.5x</u> = 78

(7x-13.5x) = 78-117 *get your x terms on one side

x=6

That's the cost of one taco.

Now, find y. Pick an equation (1,2 or 3). Let's pick 3 since y is already isolated.

All you do is plug in your x value.

Equation 3: y = (52-6x)/4

y= (52 -6(6))/4

...

You should be able to solve this on your own

Step-by-step explanation:

:)) You can solve for y now

5 0
2 years ago
The length of a rectangle is 3 less inches than twice the width. Write an expression for the width and length. Using the two exp
babunello [35]

Answer:

2l-3=w with l=length and w=width, please note i am not actually in college but 7th grade

Step-by-step explanation:

4 0
3 years ago
If the legs of a right angle are 3 feet and 4 feet, the length of the hypotenuse is how many feet
damaskus [11]
Hi there!

• Base, b = 3 ft
• Perpendicular, p = 4 ft.

According t' Pythagoras theorem :-

h = \sqrt {b^2 + p^2}

h = \sqrt {3^2 + 4^2}

h = \sqrt {9 + 16}

h = \sqrt {25} = 5 ft.

Hence,
Th required length of Hypotenuse, h = 5 ft.

~ Hope it helps!
6 0
3 years ago
Robert wants to install windows in a bus barn to improve the airflow in the summer months. If Robert makes his own screens, he c
navik [9.2K]
Well since the area of one screen in 11 ft2 you would times it by 4 which is 44
and 5 which is 55 twice so its actually 154 ft2 
hope this helps
(If I got it wrong plz tell me, I think I got it right, but just in case)
7 0
3 years ago
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