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Otrada [13]
3 years ago
6

Joshua is trying to determine the number of pizzas to order. If each pizza cost $7, how much will it cost to feed 36 people?

Mathematics
1 answer:
krok68 [10]3 years ago
6 0
252 I believe it is this if each person eats one Pizza
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Add the two expressions. 8k + 4 and 3k + 8 Enter your answer in the box.
GREYUIT [131]

Answer:

11k +12

Step-by-step explanation:

8k + 4 and 3k + 8

Combine like terms

8k + 4 + 3k + 8

8k+3k + 4+8

11k +12

4 0
3 years ago
A triangle has two sides of lengths 7 and 12. What value could the length of
Norma-Jean [14]

Answer:

A. 7

Step-by-step explanation:

Since the triangle sides are not defined, therefore let the base side have the 12 unit and one of the slant side be 7 unit.

Therefore height of the triangle, h can gotten from the Pythagoras theorem as thus:

7² = (12/2)² + h²

49 = 36 + h²

h² = 49 - 36 = 13

h = √13

knowing the height of the triangle, we can apply same rule to the other unknown slant side, x as thus:

x² = (12/2)² + h²

x² = 36 + 13 = 49

x = √49

x = 7

4 0
3 years ago
At a rental car company, a customers daily rental charge D (in dollars) for m miles driven is determined by the function D = 35
lianna [129]

Answer:

See below

Step-by-step explanation:

<u>Given function:</u>

  • D = 35 + 0.4m

m represents the domain and D represents the range of the function, therefore m = x, D = y

<u>Filling in the table:</u>

  • for x = 10, y = 35 + 0.4*10 = 35 + 4 = 39 and so on for the rest of the values
  • x = 10, 30, 50, 75, 100
  • y = 39, 47, 55, 65, 75
3 0
3 years ago
1.The equation of line CD is (y−3) = − 2 (x − 4). What is the slope of a line perpendicular to line CD? 2.The equation of line A
gogolik [260]
So here's how to do it,
slope intercept form is y=mx+b
m is the slope, b is the y- intercept, X is your unknown variable.

you need to solve to get y by its self to get your slope.

for perpendicular lines flip the slope

ex 1, smy=2x+6 --- slope of a perpendicular line will be 1/2

ex 2, y=3/2+8 ---8 perpendicular lien would have a slope of 2/3

parallel lines have the same slope so any equation with with the same slope will be parallel if it has the same degree.

ex. y=2x+14 is parallel to y= 2x+56

slope can be found using the following formula if you have two sets of points on the same line

m= y2-y1 ÷ X2 - X1
5 0
3 years ago
Read 2 more answers
How to solve 2x-y=17;x-y=10
Nataliya [291]
The answer is that y is equal to -3 and x is equal to 7 
2x-y=17
-2(x-y)=10 )
--------------
2x-y=17
-2x+2y=-20
----------------
y=-3

x-y=10 
x-(-3)=10
x+3=10
 -3   -3
----------
x=7



8 0
3 years ago
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