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3 years ago

12

3 ice cream cones cost $5.25. At this rate, how much do 2 ice cream cones cost?

2 answers:

Shkiper50 [21]3 years ago

7 0

Answer:

3.5

Step-by-step explanation: Just trust sweetie

zvonat [6]3 years ago

7 0

Answer:

use google

Step-by-step explanation:

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Help pleaseeeeee!!!!!!!!!!!!!!

lara31 [8.8K]

Answer:

$= 7 + ( - 4x - 3)i$

this is the ans.

6 0

3 years ago

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the student council set a goal of raising at least $500 in flower sales. so far it has raised $415 .write an inequality to show

Nat2105 [25]

415 + d ≥ 500

I believe that's the inequality since they want to raise a minimum of $500 so that means it can be more than $500. Hope I helped.

4 0

3 years ago

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Given the following three points, find by the hand the quadratic function they represent (0,6, (2,16, (3,33)

Lisa [10]

Answer:

$f(x) = 4x^2 - 3x + 6$

Step-by-step explanation:

Quadratic function is given as $f(x) = ax^2 + bx + c$

Let's find a, b and c:

Substituting (0, 6):

$6 = a(0)^2 + b(0) + c$

$6 = 0 + 0 + c$

$c = 6$

Now that we know the value of c, let's derive 2 system of equations we would use to solve for a and b simultaneously as follows.

Substituting (2, 16), and c = 6

$f(x) = ax^2 + bx + c$

$16 = a(2)^2 + b(2) + 6$

$16 = 4a + 2b + 6$

$16 - 6 = 4a + 2b + 6 - 6$

$10 = 4a + 2b$

$10 = 2(2a + b)$

$\frac{10}{2} = \frac{2(2a + b)}{2}$

$5 = 2a + b$

$2a + b = 5$ => (Equation 1)

Substituting (3, 33), and c = 6

$f(x) = ax^2 + bx + x$

$33 = a(3)^2 + b(3) + 6$

$33 = 9a + 3b + 6$

$33 - 6 = 9a + 3b + 6 - 6$

$27 = 9a + 3b$

$27 = 3(3a + b)$

$\frac{27}{3} = \frac{3(3a + b)}{3}$

$9 = 3a + b$

$3a + b = 9$ => (Equation 2)

Subtract equation 1 from equation 2 to solve simultaneously for a and b.

$3a + b = 9$

$2a + b = 5$

$a = 4$

Replace a with 4 in equation 2.

$2a + b = 5$

$2(4) + b = 5$

$8 + b = 5$

$8 + b - 8 = 5 - 8$

$b = -3$

The quadratic function that represents the given 3 points would be as follows:

$f(x) = ax^2 + bx + c$

$f(x) = (4)x^2 + (-3)x + 6$

$f(x) = 4x^2 - 3x + 6$

6 0

3 years ago

Solve. Use models to help you.

oksian1 [2.3K]

Answer:

3.38

Step-by-step explanation:

x + y + z = 16.9

x = 2y

y = z

y=y

2y (x) + y(y) + y(z) = 16.0

5y = 16.9

y = 3.38

4 0

3 years ago

Ross is shopping for mulch that costs $1.29$1.29 per cubic foot. During his first trip to the store, he bought 16.516.5 cubic fe

stich3 [128]

You add $1.29 and $1.29 and 16.5 and 16.5 and 4.5 and 4.5 and that equals $44.58.

I hope I helped you! :)

$1.29 + $1.29 + 16.5 + 16.5 + 4.5 + 4.5 = $44.58.

- Shelly O

8 0

4 years ago

Read 2 more answers