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TEA [102]
2 years ago
5

How to answer this question, please I need steps​

Mathematics
1 answer:
crimeas [40]2 years ago
5 0

Answer:

B

Step-by-step explanation:

We require 2 equations in 2 variables

let x be the number of salads sold and y the number of drinks sold, then the 2 equations are

x + y = 209 → (1)

6.5x + 2y = 836.5 → (2)

Multiplying (1) by - 2 and adding to (2) will eliminate y

- 2x - 2y = - 418 → (3)

Add (2) and (3) term by term

(6.5x - 2x) + (2y - 2y) = (836.5 - 418) ← simplify

4.5x = 418.5 ( divide both sides by 4.5 )

x = 93

The number of salads sold was 93

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Make a ten or a hundred to add mentally 339+123
lianna [129]
9+3=12
30+20=50
300+100=400
Then add.
12+50+400=462
<span>So 339+123=462</span>
5 0
2 years ago
Consider the parabola whose equation is y=x^2-4x and the line whose equation is y=2x+b, where b is some unknown constant
Vikki [24]

Answer:

Step-by-step explanation:

Is there a question somewhere in there?

6 0
3 years ago
Given that g(x) = 2x ^ 2 - 2x + 8 , find each of the following. a) g(0) b) g(- 2) C) g(3) d) g(- x) e) g(1 - t)
raketka [301]

Answer:

g(-2)=20

Step-by-step explanation:

Given g(x)=2x^2-2x+8, substitute what is in the parentheses for x to find an output.

For g(-2), the term -2 is in the parentheses. Thus, substitute x=-2 into 2x^2-2x+8 to find g(-2):

g(-2)=2(-2)^2-2(-2)+8,\\g(-2)=2\cdot 4+4+8,\\g(-2)=8+4+8,\\g(-2)=\boxed{20}

5 0
2 years ago
Read 2 more answers
Whats the rule for the pattern 8,6,9,7,10.....?
Delicious77 [7]

Answer:

subtract 2 and add 3

Step-by-step explanation:

8-2=6

6+3=9

9-2=7

7+3=10

4 0
3 years ago
Which expression gives the distance between the points (5, 1) and (9,-6)?
8_murik_8 [283]

9514 1404 393

Answer:

  C.  √((5-9)² +(1+6)²)

Step-by-step explanation:

The distance formula can be written ...

  d = √((x1 -x2)² +(y1 -y2)²)

Filling in the given point coordinates, this becomes ...

  d = √((5 -9)² +(1 -(-6))²)

Simplifying the signs, this becomes ...

  d = √((5 -9)² +(1 +6)²) . . . . . matches choice C

8 0
2 years ago
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