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2 years ago

I need help please.

Mathematics

2 answers:

ira [324]2 years ago

7 0

Answer: 3,168

Step-by-step explanation: If You Multiply The Original Cost Of The Textbook By 33 You Will Get A Product Of 3,186

Mandarinka [93]2 years ago

7 0

To find out the cost for the class itself we must understand what the product is and in this case it is the biology book and the prices of which ranges to $96

Now there are 33 students in a class and each on of which wants a textbook

So we multiply 96 by 33 giving us the amount of $3168 for the cost of biology textbook

The answer is $3168

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HELP NEEDED!!!! MUCH APPRECIATED

jeka94

We have

$t_1 + t+2 = \dfrac{\sqrt{s}}{4} + \dfrac{s}{1100} = .5$

Multiplying through by 1100,

$275 \sqrt{s} + s = 550$

$275 \sqrt{s} = 550 - s$

Squaring (which means we need to check later),

$275^2 s = (550 - s)^2 = 550^2 - 1100 s + s^2$

$0 = s^2 - (1100 + 275^2) s + 550^2$

$0 = s^2 - 76725 s + 302500$

$s = \frac 1 2 (76725 \pm 1375 \sqrt{3113} )$

$s \approx 3.94285 \textrm{ or } s \approx 76721.0571$

Clearly there's no way that giant number would work; must be extraneous.

Answer: 3.94

Merry Christmas!

7 0

2 years ago

Solve the simultaneous equations by substitution <br>5x+6y=−11 <br> 5x=2y−3

kicyunya [14]

Answer:

Step-by-step explanation:

we have

5x+6y= -11

5x-2y=-3

we will multiply first equation with -1

-5x-6y=11 and add it with the second

5x-2y=-3

-8y=8

y=-1

we go to our original equation and replace y=-1

5x-6=-11

5x=-11+6

5x=-5

x=-1

3 0

3 years ago

Read 2 more answers

2) Last Friday, Trevon had $17.64.

gregori [183]

Answer:

$14.54

Step-by-step explanation:

We use the equation 32.18-17.64 to find our answer of $14.54

6 0

2 years ago

20% of the spectators at a tennis match were women. 10% of them were girls, 30% are boys, and the remaining 3,600 spectators are

Finger [1]

So 100% - 20% - 10% - 30% = 40%
40% of people were men. It says that there were 3600 men and in order to find the total amount of people, do 3600/40% or 3600/.4
Which equals 9000

4 0

3 years ago

Name three things that can be easily identified by the equation of a parabola in vertex form

harkovskaia [24]

Golden Gate Bridge, Mountains, Roller Coaster

5 0

3 years ago