2 years ago

2. Mrs. Ellison brought 30 cookies to the school picnic last year. This year she brought 45

Mathematics

1 answer:

Sphinxa [80]2 years ago

4 0

Answer:

15%

Step-by-step explanation:

45 - 30 = 15

Answer - 15%

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What is the value of the following expression?<br> 2 x {6 + [12 + (3 + 1)]} - 1

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Answer:

Step-by-step explanation:

2*(18+3+1)-1

2*(21+1)-1

2*22-1

44-1

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3 years ago

Graph the equation by first finding the x- andy-intercepts.

dalvyx [7]

Answer:

x-intercept: (2,0)

y-intercept: (0,3)

Step-by-step explanation:

We are asked to graph our given equation $\frac{1}{2}x+\frac{1}{3}y=1$ .

To find x-intercept, we will substitute $y=0$ in our given equation.

$\frac{1}{2}x+\frac{1}{3}(0)=1$

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To find y-intercept, we will substitute $x=0$ in our given equation.

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$0+\frac{1}{3}y=1$

$3*\frac{1}{3}y=3*1$

$y=3$

Therefore, the y-intercept is $(0,3)$ .

Upon connecting these two points, we will get our required graph as shown below.

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3 years ago

Solve for W.<br> 5w + 9z=2z + 3w

JulijaS [17]

Answer:

W = -7z/2

Step-by-step explanation:

Subtract like terms and divide to isolate W

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3 years ago

9 - 3/5 as a improper fraction

saveliy_v [14]

Answer:

42/5

Step-by-step explanation:

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elena55 [62]

Answer:

-3y

Step-by-step explanation:

Whether y is smaller than 0 or not, the square root of y^2 is y, a positive quantity.

Thus, -√(9y²) = -3y

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3 years ago