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seraphim [82]
2 years ago
8

Solve each system by elimination x + 2y = 20 3x +2y = -12

Mathematics
1 answer:
neonofarm [45]2 years ago
3 0
The answer is (2,-9). Hope i can help.
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Rosa and Albert receive the same amount of allowance each week . The table shows what part of their allowance they each spent on
Anettt [7]
1/2 x > 0.4x

where Robert's spending is greater than Rosa's spending.

Allowance of Rosa = Allowance of Robert

let x = allowance

Rosa : video games = 0.4(x) ; pizza = 2/5 (x)
Robert : video games = 1/2 (x) ; pizza = 0.25 (x)

let us assume that their allowance is 100 each week. so, x = 100

Rosa : video games = 0.40(100) = 40
           pizza 2/5 (100) = 200/5 = 40
total spending: 40 + 40 = 80

Robert : video games = 1/2 (100) = 50
             pizza 0.25 (100) = 25
total spending: 50 + 25 = 75

Spending on video games
Rosa = 40
Robert = 50

Robert spent more of his allowance on video games than Rosa.

1/2 x > 0.4x
7 0
3 years ago
A line includes the points (9, -7) and (-6, -2). What is its equation in slope-intercept form?
Rus_ich [418]

Answer:

y=\frac{-1}{3}x-4

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

<em>m</em> - slope

<em>b </em>- y-intercept

Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step 1: Define

Point (9, -7)

Point (-6, -2)

Step 2: Find slope <em>m</em>

<em />m=\frac{-2-(-7)}{-6-9}<em />

<em />m=\frac{-2+7}{-15}<em />

<em />m=\frac{5}{-15}<em />

<em />m=\frac{-1}{3}<em />

y=\frac{-1}{3}x+b

Step 3: Find y-intercept <em>b</em>

<em />-7=\frac{-1}{3}(9)+b<em />

<em />-7=-3+b<em />

<em />-4=b<em />

<em />

Step 4: Write linear equation in slope-intercept form

y=\frac{-1}{3}x-4

8 0
2 years ago
Mason wants to host a housewarming party. The following equation represents how the cost of party depends on the number of atten
mestny [16]
The answer I got was a=5. Hope this is correct and hope it helped
4 0
3 years ago
Solve equation k/0.32=2.2
Mandarinka [93]
Hey there Shynee!
To do this equation, you have to flip the equation and do it on both sides.
k/0.32 = 2.2
Instead of division, multiply on both sides.
k/0.32 * 0.32 = 2.2 * 0.32
This isolates the variable
k = 0.704
and finds what x equals.

Check:
0.704/0.32 = 2.2
Correct.

I hope I helped!
~Olivia
3 0
3 years ago
Answer The Question Below:
shepuryov [24]

Answer:68600m

Step-by-step explanation:98 meters to cm is 9800 then times it by 7 you get 68600

3 0
3 years ago
Read 2 more answers
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