please i need help with #12 and #13!!!

Answer:

She had 14 prescriptions for tranquilizers.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of prescriptions she had for antibiotics.

y is the number of prescriptions she had for tranquilizers.

A pharmacist found at the end of the day she had 3/2 as many prescriptions for antibiotics as tranquilizers.

This means that:

[tex]\frac{x}{y} = \frac{3}{2}[/tex]

[tex]x = \frac{3y}{2}[/tex]

She had 35 prescriptions altogether.

This means that:

[tex]x + y = 35[/tex]

How many did she have for tranquilizers?

We want to find y. Since [tex]x = \frac{3y}{2}[/tex], we solve the following equation.

[tex]x + y = 35[/tex]

[tex]\frac{3y}{2} + y = 35[/tex]

Multiplying everything by 2

[tex]3y + 2y = 70[/tex]

[tex]5y = 70[/tex]

[tex]y = \frac{70}{5}[/tex]

[tex]y = 14[/tex]

She had 14 prescriptions for tranquilizers.

Answer:

First, we start with:

"Ram obtains 40% of the marks in a paper of 200 marks"

In this case, 200 marks represent the 100%

Then how much is the 40%?

we have the relations:

40% = X

100% = 200 marks

Now we can take the quotient of both equations:

(40%/100%) = X/200marks

(40%/100%)*200marks = X = 80 marks

So Ram obtained 80 marks.

Now we have:

"Shyam is ahead of Ram by 25% of Ram's marks"

Now the 100% is the number of marks that Ram has, this is:

100% = 80 marks

And Shyam has 25% more than that, then we have:

125% = X

Same as before, we take the quotient of both equations:

(125%/100%) = X/80 marks

1.25*80 marks = 100 marks.

Shyam has 100 marks.

The last part is (this is not written correctly, it says "one month", it should be "one-ninth")

"while Bhuvan is ahead of Shyam by one-ninth of his own marks."

if his own marks are X, we have the equation

X = 100 + (1/9)*X

X - 1/9*X = 100

X*(8/9) = 100

X = (9/8)*100 = 112.5

So Bhuvan has 112.5 marks

Step-by-step explanation:

I'm not sure but I think there are 2 terms!

Answer:

the area would be 935cm

Step-by-step explanation:

ty for reading :P

603.2246 square centimeters.

Answer:

factors-----(a+2)(a^2+4-3a)

Answer:

Step-by-step explanation:

Answer:

$660.19

Step-by-step explanation:

Hope this helps

Answer:

1660

Step-by-step explanation:

Step-by-step explanation:

The small number above the 2 is called an exponent, and we use exponents to shorten a number so it's not so large. So here, the 6 is an exponent, and when we have a problem like this where we have to figure out something like 2^6, as shown above, we grab the base number, which in this case is 2, and we multiply it by itself 6 times, since 6 is the exponent. So basically you have to multiply the base number (2) by itself the same number of times as whatever the exponent is. So we have 2 × 2 × 2 × 2 × 2 ×2, and when you multiply all of this, you get 64. So the module has 64 pages.

Answer:

Step-by-step explanation:

4+n=15 subtract 4 from both sides

n=11

Unless the wording was incorrect this is an equation not an inequality.

Answer:

19 cause 15+4=is

Step-by-step explanation:

i made a 100%

Answer:

D-y=-3x+5

Step-by-step explanation:

Slope is -3x and y intercept is positive 5

Answer:

Step-by-step explanation:

y - 2 = -3(x - 1)

y - 2 = -3x + 3

y = -3x + 5

answer is D

Answer:

205.62

Step-by-step explanation:

Answer:

Step-by-step explanation:

hypotenuse (h) = 8

base(b) = 2

cos A = b / h

cos A = 2 / 8

cos A = 1/ 4

A = Cos^-1 ( 1/4)

A = 75.52 °

Answer:

[tex]3\frac{1}{3} = \frac{10}{3} = 3.333333333[/tex]

Step-by-step explanation:

Hope this helps.

Answer:

it is c

Step-by-step explanation:

Based on the information given regarding the function, the correct option is C. g (x) = negative StartRoot x + 3 EndRoot + 8.

It should be noted that a function simply means the relation from a set of inputs to a set of possible outputs.

In this case, the function that has the same range as | f (x) = negative 2 StartRoot x minus 3 EndRoot + 8 will be g (x) = negative StartRoot x + 3 EndRoot + 8.

Learn more about functions on:

https://brainly.com/question/10439235

Answer: It depends on how many times Tyrell wants to reserve the court. Sorry but there's not enough info to solve rn

Hope this helps! <3

Answer:

$20 is cheaper :) (20% off of $30 would be $24!)

Answer:

3, ∞ hope this helps

Step-by-step explanation:

Answer:

angle C=88 degrees

Step-by-step explanation:

angles A+B+C+D=360

angles A+C=360-119-65=176

angle A=angle C because it is a kite

2C=176

angle C=88 degrees

[tex] \huge \purple{\tt{Answer:}} [/tex]

Let the unknown number be x .

[tex] \Large{\underline{\sf{According~to~question}}} [/tex]

[tex] \sf {2x+15=9} \\\\\ \implies \sf{2x=9-15} \\\\\ \implies \sf {2x=-6} [/tex]

[tex] \implies {\sf {x ={ \dfrac{ - 6}{2}}}} \\\\\ \implies \sf{x=-3} [/tex]

Answer:

its a

Step-by-step explanation:

because as they said per hour is equally to 45 so the 2 hour will be 45 +45 which is 90 so its a

Answer:

Let x be the number of 3-point questions.

Let y be the number of 5 point questions.

Answer:

y= 93/5x + 3

Step-by-step explanation:

Find the gradient-

m= [tex]\frac{96-3}{5-0}[/tex]= 93/5

Substitute into-

y-y1=m(x-x1)

y-3=93/5(x-0)

y= 93/5x + 3

Scenario a: 4x+7=64

Scenario b: 4(7+x)=64

x represents how much the bags of rice weigh in each scenario.

Answer:

11 1\3

Step-by-step explanation:

32÷3=11.33333333333333333333

Answer:

b. 1/8×2²

Step-by-step explanation:

[wrote the explanation in ur previous question]

Answer:

P4200

Step-by-step explanation:

SI=PRT/100

P=Principal which is P10500

R=Rate which is 20%

T=Time which is 2 years

So SI= 10500×20×2/100

=P4200

Answer:

C

Step-by-step explanation:

so the first one ends at 4.7107

the second- 3.3568

the third- 5.1401

and multiplying the first by 5000 we get- 23,553.5

for the second we get -6,713.6

for the third we get 41,120

adding them all together we get 71,387.1

and so C is the closest

The  value of the index at the end of the day should be considered as the $70,400.

Since

Stock X opens the day with 5000 shares at $4.30 per share.

Stock Y opens the day with 2000 shares at $3.20 per share.

Stock Z opens the day with 8000 shares at $4.90 per share.

This simple index rises 4.9% over the course of the day.  

So ,

[tex]= (5,000 \times \$3.4) + (2,000 \times \$3.20) + (8,000 \times $4.90) * 1.0.49[/tex]

= $70,400

hence, The  value of the index at the end of the day should be considered as the $70,400.

Learn more about stock here: https://brainly.com/question/24636535

Answer:

First i always use khan academy

Step-by-step explanation:

they will reach at the same time.

Step-by-step explanation:

first we need to find out total Miles covered by bus and truck per hour,

so,

300÷6=50 miles per hour

200÷4=50 miles per hour

so they both will reach at the same time.

hope this will help you

thanx a lot