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kkurt [141]
2 years ago
9

Johnny is saving money to buy a Nintendo Switch. He already has $100 saved. He plans to save $20 from his allowance each week. W

rite the equation that represents the total savings, y, in terms of x weeks. What is Johnny's total savings after 8 weeks?
Mathematics
2 answers:
ziro4ka [17]2 years ago
6 0

Answer:

1. y=20x+100(this is the equation)

2. 260(this is how much he has after 8 weeks)

Step-by-step explanation:

GenaCL600 [577]2 years ago
4 0

Answer:

See below

Step-by-step explanation:

y = 100 + 20x    where x = number of weeks

if x = 8,  y = 100 + 20(8)

             y = 100 + 160

             y = 260

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Simplify the expression (9x² – 8z³) -(5z - 9z³ + 2z²)​
Anni [7]

Answer:

z^3+9x^2−2z^2−5z

Step-by-step explanation:

hope this helps!

5 0
2 years ago
Haley cuts pieces of ribbons to make bookmarks. each bookmark was 1/8 foot long. draw a point on the number line below and label
Karo-lina-s [1.5K]
Wee need a photo of the number line to help u sorry

8 0
2 years ago
Find the equation for the parabola that has its vertex at the origin and has directrix at x=1/48
Oksana_A [137]

Answer:

The equation for a parabola with vertex at the origin and a directrix at x = 1/48 is x= \frac{1}{12}\cdot y^{2}.

Step-by-step explanation:

As directrix is a vertical line, the parabola must "horizontal" and increasing in the -x direction. Then, the standard equation for such geometric construction centered at (h, k) is:

x - h = 4\cdot p \cdot (y-k)^{2}

Where:

h, k - Horizontal and vertical components of the location of vertex with respect to origin, dimensionless.

p - Least distance of directrix with respect to vertex, dimensionless.

Since vertex is located at the origin and horizontal coordinate of the directrix, least distance of directrix is positive. That is:

p = x_{D} - x_{V}

p = \frac{1}{48}-0

p = \frac{1}{48}

Now, the equation for a parabola with vertex at the origin and a directrix at x = 1/48 is x= \frac{1}{12}\cdot y^{2}.

6 0
3 years ago
PLEASE HELP ME!!!!! THIS IS TIMED!!!!!!!! PLEASE HELP ME!!!! PLEASE!!!!!!!!!!!!!!!!
sesenic [268]
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5 0
2 years ago
For g(x)=x^2-x find g(x) when x=-2
torisob [31]

Answer:

g(x) = 6

Step-by-step explanation:

Begin with substuting the x variable with -2, we do this because the question has listed the value of x already.

Using the value of x, -2 we determine g(x).

g(x) = -2^2 + 2

Above is what the equation would look as, after you input the value of -2.

Using pemdas, (parantheses, exponents, multiplication, division, addition, subtraction) solve the equation.

-2^2 = 4

Think of it as -2 * -2, which is why -2^2 is 4.

Add 4 +2.

4 + 2 = 6.

Therefore, the value of g(x) = 6

6 0
3 years ago
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