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WINSTONCH [101]

3 years ago

9

What is equivalent to 5(9q + 7)

2 answers:

Andrej [43]3 years ago

8 0

Answer:

45q + 35

Step-by-step explanation:

TiliK225 [7]3 years ago

8 0

Answer: 45q+ 35

Step-by-step explanation: Distribute the 5 to the 9q and 7.

5x9q= 45q

5x7= 35

45q +35

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Taya2010 [7]

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What percent is 2.5 of 40

Elina [12.6K]

Answer:

1

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Solve for n.<br> 3/4 x n = 1

cestrela7 [59]

3/4 times n=1

remember that when you multiply 3/4 by 4/3 you get 12/12=1 so it simplifies
remember that you can do anything to an equation as long as you do it to both sides

3/4 ties n=1
multiply both sides by 4/3 to clar fraction
12/12 times n=4/3 times 1
1 times n=4/3
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3 0

3 years ago

Answer correct you get brainliest answer

zloy xaker [14]

Answer:

$y = {x}^{2} - 2$

Or if you want with the value of h too.

$y = {(x - 0)}^{2} - 2$

Step-by-step explanation:

$y = a {(x - h)}^{2} + k$

Find the value of h and k by using the formula.

$h = - \frac{b}{2a} \\ k = \frac{4ac - {b}^{2} }{4a}$

From y = x²-2

$a = 1 \\ b = 0 \\ c = - 2$

Substitute these values in the formula.

$h = - \frac{0}{2(1)} \\ h = 0$

Therefore, h = 0.

$k = \frac{4(1)( - 2) - {0}^{2} }{4(1)} \\ k = \frac{ - 8}{4} \\ k = - 2$

Therefore, k = - 2.

From the vertex form, the vertex is at (h, k) = (0,-2). Substitute h = 0, a = 1 and k = -2 in the equation.

$y = a {(x - h)}^{2} + k \\ y = 1 {(x - 0)}^{2} - 2 \\ y = {(x)}^{2} - 2 \\ y = {x}^{2} - 2$

These type of equation where b = 0 can also be both standard and vertex form.

4 0

3 years ago

A vendor sells h hot dogs and s sodas. If a hot dog costs twice as much as a soda, and if the vendor takes in a total of d dolla

horrorfan [7]

Answer:

The expression for the cost of soda is 100 × $\dfrac{\textrm d}{ \textrm 2h + \textrm s}$ cents

Step-by-step explanation:

Given as :

The quantity of hot dogs sold by vendor = h

The quantity of sodas sold by vendor = s

The total cost of hot dogs and soda = $ d

Let The price of hot dogs = $ x

And The price of soda = $ y

Now, According to question

The price of hot dogs is twice as much as soda

so, $ x = 2 × $ y

I.e x = 2 y

and $ x h + $ y s = $ d

Or , 2 × $ y h + $ y s = $ d

Or, y = $\dfrac{\textrm d}{ \textrm 2h + \textrm s}$

∵ 1 dollar = 100 cents

So, the price of $\dfrac{\textrm d}{ \textrm 2h + \textrm s}$ = 100 × $\dfrac{\textrm d}{ \textrm 2h + \textrm s}$ cents

Hence The expression for the cost of soda is 100 × $\dfrac{\textrm d}{ \textrm 2h + \textrm s}$ cents Answer

5 0

3 years ago