17y + 31 = 167

solve for y

Answer:

A(2)= 18, A(4)= 40, A(11)= 117

Answer:

10 width and 30 length.

Step-by-step explanation

multiply 30x2 which is 60 and 10x2 which is 20 and 60+20=80.

Answer:

Jasisnotcute

Step-by-step explanation:

Im telling you they really arent.

Answer is Z though.

Given:

Speed in still water = 12 miles per hour

Distance travel in upstream = 45 miles

Distance travel in downstream = 45 miles

Total time = 8 hours

To find:

The speed of current.

Solution:

Let the speed of current be x miles per hour.

Speed in upstream = (12-x) miles per hour

Speed in downstream = (12+x) miles per hour

We know that,

[tex]Time=\dfrac{Distance }{Speed}[/tex]

Time to cover 45 miles in upstream = [tex]\dfrac{45}{12-x}[/tex]

Time to cover 45 miles in downstream = [tex]\dfrac{45}{12+x}[/tex]

Total time is 8 hours. So,

[tex]\dfrac{45}{12-x}+\dfrac{45}{12+x}=8[/tex]

[tex]45\left (\dfrac{1}{12-x}+\dfrac{1}{12+x}\right)=8[/tex]

Taking LCM, we get

[tex]45\left (\dfrac{12+x+12-x}{12^2-x^2}\right)=8[/tex]

[tex]45\left (\dfrac{24}{144-x^2}\right)=8[/tex]

[tex]\dfrac{45\times 24}{8}=144-x^2[/tex]

On further simplification, we get

[tex]45\times 3=144-x^2[/tex]

[tex]135=144-x^2[/tex]

[tex]x^2=144-135[/tex]

[tex]x^2=9[/tex]

Taking square root on both sides.

[tex]x=\pm \sqrt{9}[/tex]

[tex]x=\pm 3[/tex]

Speed cannot be negative. So, x=3 only.

Therefore, the speed of the current is 3 miles per hour.

Answer:

A

Step-by-step explanation:

Trust me

Answer: the Answer is A

Step-by-step explanation: I used a graphing calculator

Answer:

(b) x > 26 cookies

Step-by-step explanation:

The selling price of 1 super-sized cookie, S.P.=$1.50

Let a batch have x cookies.

So, the selling price of x cookies=1.5x

The expences in making one batch of cookies=$10

So, net profit = 1.5x-10

The given inequality to model this is 1.5x - 10 > y, That means the profit for one batch is greater than y.

As she wants to make a profit of at least $30, so for this condition, the value of y is 30.

Now, the given inequality become,

[tex]1.5x - 10 >30[/tex]

[tex]\Rightarrow 1.5x>30+10[/tex]

[tex]\Rightarrow x>\frac{40}{1.5}[/tex]

[tex]\Rightarrow x>26\frac{2}{3}[/tex]

As x is the number of cookies, so, it can't have a fractional value. This can be written as

[tex]x>26[/tex] or [tex]x\geq27.[/tex]

So, she has to sell more than 26 cookies to make a profit of at least $30.

Hence, option (b) is correct.

Answer:

February, it's the shortest month after all.

Answer: February

Step-by-step explanation: People sleep the least amount of time in February because it is the shortest month out off all the months. Your welcome :)

Answer:

-12

Step-by-step explanation:

First, substitute the variables with the numbers.

(18-(-2*-5))+4(-5)

Using the order of operations, solve in the parentheses before anything else.

(18-(-2*-5))+4(-5)

(18-(10))+4(-5)

We can now multiply 4 by -5.

(18-(10))+4(-5)

(18-10)-20

It's probably easier if we subtract 10 from 18 before subtracting 20.

(18-10)-20

8-20

-12

Hope this helps you out!! Have a wonderful day c:

Answer:

3 i think

Step-by-step explanation:

add 3 and 4 =7

or

multiply 2 and 3= 6 and subtract 3 = 3

Answer:

its A

Step-by-step explanation:

Answer:

The answer is D!

Step-by-step explanation:

When you answer the question you have 4 players who pay $3.5 per player each game the formula would be 4(3.5g). The you have to calculate in the money they paid to rent shoes which is 4x2 or 4(2) so when you combine the equations you get D)4(2)+4(3.5g)!!!

HOPE THIS HELPS!!

Answer:

D Because 0.44 is the same as 0.44 and -5.55 is less than 5.55 and -4.5 is less than 3.60 so it leaves out D

Answer:

D

Step-by-step explanation:

It is larger because the whole number -3 is greater than -4 and closer to 0

Answer:

m = (4/3)

Step-by-step explanation:

9 - 1

8 - 2

8/6 = 4/3

=======================================================

Explanation:

Let's go through the answer choices

Answer:

k = 10

Step-by-step explanation:

The constant of proportionality of a graph in Mathematics is simply the ratio of y to x which can be called the slope.

It's given by; k = y/x

We are given; y = 30 and x = 3.

Thus;

k = 30/3

k = 10

Answer:

1

Step-by-step explanation:

angles on a straight line are 180 so u do 180 minus 47 gives u 133

the temperature of the mixture will be 60°

Answer:

A

Step-by-step explanation:

Answer:

let the no. of boys be x

no. of girls = 2x

According to the question,

x + 2x = 60

=> 3x = 60

=> x = 60/3

=> x = 20

Thus, there were 20 boys at the game

Answer:

boys:20 girls:40

Step-by-step explanation:

because 40 +20=60

Answer: explain how to graph an equation in slope-intercept form.

Step-by-step explanation: To graph a linear equation in slope-intercept form, we can use the information given by that form. For example, y=2x+3 tells us that the slope of the line is 2 and the y-intercept is at (0,3). This gives us one point the line goes through, and the direction we should continue from that point to draw the entire line.

Answer:

x+21

Step-by-step explanation:

Distribute

4x+21-3x

Combine like terms

X+21

Answer:

=x+21

Step-by-step explanation:

4x+3(7−x)

expand: 3(7-x): 21-3x

=4x+21-3x: x+21

=x+21

Hope this helped :)

Answer:

Step-by-step explanation:

To find the length and width of the figure given the equation (s-2) (s+6) = 153​, we will find the equivalent value of s by factoring.

(s-2) (s+6) = 153​

s²+6s-2s-12 = 153

s²+4s-12-153 = 0

s²+4s-165 = 0

s²+15s-11s-165 = 0

s(s+15)-11(s+15) = 0

s+15(s-11) = 0

s+15 = 0 and s-11 = 0

s = -15 and 11

s cannot be negative

Hence s = 11

The length of the figure is s

The width is s+6

Length = 11

Width = 11+6 = 17

Hence the length of the figure is 11 and the width is 17

Answer:

HMM LOOKS LIKE A FRACTION PROBLM IM NOT SURE KIND OF TIERD RN SO UM  .........3x+7=3/5 try this in calculated

Step-by-step explanation:

✌

Answer:

  y +4 = 1/5(x +5)

Step-by-step explanation:

The equation of a line with slope m through point (h, k) in point-slope form is ...

  y -k = m(x -h)

You have m=1/5, (h, k) = (-5, -4). Putting these values into the formula gives ...

  y -(-4) = (1/5)(x -(-5))

  y +4 = 1/5(x +5)

To rent an apartment at Cedar Ridge Apartments, Eli has to pay a security deposit of $1,000 and $1,200 a month in rent, m. To rent an apartment at Northview Apartments, Andrew has to pay a security deposit of $1,500 and $1,175 a month in rent, m. How many months will it take for Eli and Andrew to have spent the same amount on their apartment deposit and rent?

Had this same question on my math test.

Answer:

12-5 is 7 standard form + 7

Step-by-step explanation:

I honestly don't know try 10 or 12 sorry I couldn't help you further

Answer:

m=-2

Step-by-step explanation:

Answer:

$57.75

Step-by-step explanation:

96.25 x .40 = 38.5

96.25 - 38.5 = 57.75

The original price of the tire will be equal to $160.4.

The Percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that Gary had a 40% discount for new tires. The sale price of a tire was $96.25.

Let the original price of the tire be x. Now form the equation to have the price of the tire,

x ( 0.60 ) = $96.25

x = $96.25 / 0.60

x = $160.4

Therefore, the original price of the tire will be equal to $160.4.

To know more about percentages follow

https://brainly.com/question/24304697

#SPJ2

Answer

I think it would be 2,850

Answer:

28.5

Step-by-step explanation:

0.12 x 28.5 = 3.42

That means he bought 28.5 ounces