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4 years ago

Instructor Cost per hour

1 answer:

8 0

Mark Charges $10 an hour,
Rick Charges $8.88 (Roughly) an hour,
Steve Charges $9.37 (Roughly) an hour,
Andy Charges $12 an hour,
So Rick Would Be The Best.

I'm Not The Best At Maths, So Don't Take It As 100% But I'm Confident. Also I Hope I Got What You Were Asking!

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Explain number 2 & 3 please

VLD [36.1K]

1. 3x - 2y = 0 => y = 3/2x
4x + 2y = 14<=> 4x + 2*(3/2x) = 14<=> 7x = 14<=> x = 2 & y = 3
2.3p + q = 7=> q = 7 - 3p
2p - 2q = -6<=> 2p - 2*(7-3p) = -6<=> 2p - 14 + 6p = -6<=> 8p = -6 + 14 = 8<=> p = 1 & q = 4
3.3x - 2y = 1=> x = (1+2y)/3
8x + 3y = 2<=> 8*(1+2y)/3 + 3y = 2<=> 8*(1+2y)/3 - 2 = -3y<=> 3*(8*(1+2y)/3 - 2) = -3*(3y)<=> 8*(1+2y) - 6 = -9y<=> 8 + 16y - 6 = -9y<=> 2 = -25y<=> y = -2/25 & x = 7/25

7 0

4 years ago

Allison wants to buy a game that costs $120. She has saved $30 for the game. She earns $5 per hour babysitting.

sergey [27]

Answer:

Step-by-step explanation:

<em>Current savings = $30</em>

<em>Rate for babysitting (per hour) = $5/hour</em>

<em>So, required equation is :-</em>

<em>She must make $90 by babysitting for 18 more hours.</em>

7 0

3 years ago

Read 2 more answers

In the figure,what’s is m

Sergeeva-Olga [200]

Answer:

∠ DBE = 25.5°

Step-by-step explanation:

Given ∠ DBC = 90° and ∠ DBE + ∠ EBC = ∠ DBC, then

∠ DBE = ∠ DBC - ∠ EBC = 90° - 64.5° = 25.5°

7 0

4 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

tangare [24]

Answer:

<h3>The given expression can be written in the form $q(x)+\frac{r(x)}{b(x)}$ as $(2x^2-x+3)+\frac{0}{x-3}$ where q(x)= $2x^2-x+3$ , r(x)=0 and b(x)=x-3</h3>

Step-by-step explanation:

Given rational expression is $\frac{2x^3-7x^2+6x-9}{x-3}$

<h3>To rewrite the given rational expression in the given form and match their correct expressions:</h3>

Rewrite the given rational expression $\frac{2x^3-7x^2+6x-9}{x-3}$ in the form of $q(x)+\frac{r(x)}{b(x)}$ where q(x) is the quotient, r(x) is the remainder and b(x) is the divisor.

<h3>Now solve the given expression by using Synthetic division, we get</h3>

Since x-3 is a factor for $2x^3-7x^2+6x-9$

<h3>Therefore b(x)=x-3</h3>

3_| 2 -7 6 -9

0 6 -3 9

------------------------------------

2 -1 3 0

------------------------------------

Therefore we have quadratic equation $2x^2-x+3=0$

<h3>q(x)= $2x^2-x+3$ </h3><h3>Remainder is 0</h3><h3>Therefore r(x)=0</h3>

Therefore we can write in the form as $(2x^2-x+3)+\frac{0}{x-3}$

It is in the form of $q(x)+\frac{r(x)}{b(x)}$

<h3>Therefore the given expression can be written in the form $q(x)+\frac{r(x)}{b(x)}$ as $(2x^2-x+3)+\frac{0}{x-3}$ where q(x)= $2x^2-x+3$ , r(x)=0 and b(x)=x-3</h3>

3 0

3 years ago

Read 2 more answers

Help please asap!!!!!!!!!!!

elena55 [62]

1.65 i think but i might be wrong

3 0

4 years ago