5x + 3y = 4z Solve for Y.​

Answer:

quadratic

Step-by-step explanation:

because it has degree 2

Answer:

She multiplied feet x inches to obtain the area.

She should convert 108 inches to 9 feet, then multiply 9 x 12 to get the area of 108 ft^2

Answer:

She bought 142 ounces all together.

Step-by-step explanation:

78.40 + 63.6 = 142

Answer:

142 oz.

Step-by-step explanation:

You can add 78.4 and 63.6 to get 142. If you don't know how to add decimals, you can disregard the decimal until the end, when you move it over 1 place in this particular case.

Answer:

Step-by-step explanation:

3 , -2

just look for the point where the numbers are the same

Answer:

135

Step-by-step explanation:

Answer:

2^6*2^-8

Step-by-step explanation:

Answer:

1/21

Step-by-step explanation:

Answer:

y=(3/4)x

Step-by-step explanation:

Find the slope of the line (3/4) and plug that into m

Answer:

Store B is offering the better deal on ground beef

Step-by-step explanation:

Dean is comparing prices on ground beef

Store A is selling 5 pounds of ground beef for $23.49

Store B is selling 8 pounds of ground beef for $36.96

We need to know which store is offering the better deal on ground beef

To find the better deal we must to find the unit price of each store

The unit price = total price ÷ number of pounds

∵ Store A is selling 5 pounds of ground beef for $23.49

∴ The unit price of Store A = 23.49 ÷ 5 = $4.698

∴ The unit price of Store A is $4.698 per pound

∵ Store B is selling 8 pounds of ground beef for $36.96

∴ The unit price of Store B = 36.96 ÷ 8 = $4.620

∴ The unit price of Store B is $4.620 per pound

∵ $4.620 < $4.698

∴ The unit price of Store B is less than the unit price of Store B

∴ Store B is cheaper than Store A, then it is offering the better deal

Answer:

D

Step-by-step explanation:

D, it has a right angle and it shows us that the hypotenuse is congruent and the leg is also congruent.

Answer:

13.39x10^10 gallons

Step-by-step explanation:

because if you add them together that is the sum

Answer:

The 2nd option:

1.339×10⁶

Step-by-step explanation:

To find the combined capacity, add the two values together so:

(8.12×10⁵ ) + ( 5.27 × 10⁵ )

It will be simpler to add if you change it out of its

standard form

812000+527000

= 1339000

Now you can write in back in standard form, which will be

1.339×10⁶

Answer:

1. 37.5 metres.

2. 33.33 metres (May be wrong due to the answer but I used the correct solution to find the answer)

3. Refer to explanation.

Step-by-step explanation:

1. Find out how much Logan and Mila both swam.

1/3 of an hour =

60 minutes ÷ 3 = 20 minutes

Logan swam 750 metres for 20 minutes.

Mila swam 2/3 of Logan's distance.

Find out how much is 1/3 of Logan's distance in 1/4 of an hour.

3/3 = 750

1/3 = 750 ÷ 3 = 250

2/3 = 250 x 2 = 500

1/4 of an hour =

60 minutes ÷ 4 = 15 minutes

Mila swam 500 metres in 15 minutes.

To find out Logan's average swimming speed, here's the formula:

Total distance/total elapsed time

So it is 750/20 which is 37.5 metres.

2. Use the same formula I mentioned above in question 1 for average swimming speed, so it is...

500/15 = 33.33 metres

3. Other ways to compare Mila's and Logan's swimming speed is to find out the difference of the distance of how long they swam.

Use Mila's average swimming speed and find out how much metres she would swim if she swam for 20 minutes.

33.33 metres x 20 minutes = 666.6 metres

Answer:

27.5 /100 are running for a cause

Step-by-step explanation:

We know that 220/800 are running for a cause

Divide the top and bottom by 8 to get the fraction out of 100

220 /8 =27.5

800/8 = 100

27.5 /100 are running for a cause

Answer:

16 yards of yarn

Step-by-step explanation:

4x4 = 16 yards of yarn

Answer:

-1.15 or -1.2

Step-by-step explanation:

[tex]\frac{1}{9} x= 14x +16\\\frac{1}{9} x-14x=16\\-\frac{125}{9} x=16\\x=-1.152[/tex]

Answer:

18 children

Step-by-step explanation:

The computation of the more children went to scotland is as follows:

Given that

There is 200 children

out of which 18% went to wales i.e. = 200 × 18% = 36

And, 27% went to scotland i.e. = 200 × 27% = 54

So, the more children went to scotland is

= 54 - 36

= 18 children

Given:

Principal = $1400

Simple rate of interest = 1.25%

Time = 6 month

To find:

The balance of the account after simple interest.

Solution:

The formula for simple interest is

[tex]I=\dfrac{P\times r\times t}{100}[/tex]

Where, P is principal, r is the rate of interest in % and t is time in years.

Time = 6 months

        = [tex]\dfrac{6}{12}[/tex] year

        = 0.5 year

Putting 1400, r=1.25, t=0.5 years.

[tex]I=\dfrac{1400\times 1.25\times 0.5}{100}[/tex]

[tex]I=\dfrac{875}{100}[/tex]

[tex]I=8.75[/tex]

Now, the amount is

[tex]A=P+I[/tex]

[tex]A=1400+8.75[/tex]

[tex]A=1408.75[/tex]

Therefore, the balance of the account after the simple interest is $1408.75.

Answer: [tex]2\sqrt{22}[/tex]

Step-by-step explanation:

Pythagorean theorem: [tex]a^{2} +b^{2} = c^{2}[/tex], where a and b are the legs and c is the hypotenuse.

We can solve for x by only using the left side of the triangle. Since we're only using the left side of the triangle, we can reduce 18 by 2 to get 9. Now we plug in our information to the equation.

[tex]9^{2} +b^{2} = 13^{2}[/tex]

[tex]81 +b^{2} = 169[/tex]

Since we don't know what [tex]b^{2}[/tex] is, we're going to isolate it by subtracting 81 on both sides

[tex]b^{2} = 88[/tex]

We have to square root both sides in order to find out b (or x in the problem).

[tex]\sqrt{b^{2}} = \sqrt{88}[/tex]

When you put this on a calculator it would result in [tex]2\sqrt{22}[/tex] which is the answer d in the problem.

Answer:

c

Step-by-step explanation:

If a piece is equal to 1/10 of a pan , a pan would make 10 brownies

5 pans would make , 10 x 5 = 50 brownies

Answer: c

Step-by-step explanation: each pan is 10 slices so if you multiply that with how many pans you have which is 5 and 5 x 10 = 50

9514 1404 393

Answer:

Step-by-step explanation:

The graph shows C = 400 when p = 0 (at the left edge). This is the y-intercept value, and is the cost of production when no phones are produced. It is essentially the fixed cost of rent and equipment.

When p=1, the graph shows C = 500. That is, the cost goes up by 100 when p goes up by 1. This is the cost per phone. It shows up in the cost equation as the slope. So, the cost equation is ...

  C = 400 +100p

Answer:

300

Step-by-step explanation:

5:1000 can be desimplified to 300:60000

Answer:

A function B no function C function D no function

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

I dont know why

Answer:

sorry about that v but to make it shorter the answer is undefined

Step-by-step explanation:

To calculate the slope (m) use the

The 2 points here are (12 ,10) and (12 ,5)

Division by 0 is undefined , hence slope is undefined.

This is, in fact, a line parallel to the y-axis and passing through all points in the plane with an x-coordinate equal to 12.

For this reason it's equation is x = 12

A 'quick' way to note when this situation occurs is to observe that the x-coordinates of the 2 given points are equal.

graph{y-1000x+12000=0 [-20, 20, -10, 10]}

Answer:

Indefinite

Step-by-step explanation:

Slope formula:

[tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1}} \\m=\frac{5-10}{12-12} \\m=\frac{-5}{0}\\[/tex]

When you have a 0 as denominator, the slope is indefinite; the line on the graph is vertical

Answer:

22 cards

Step-by-step explanation:

Set up a ratio.

[tex]\frac{34}{29+x} =\frac{2}{3}[/tex]

[tex]58+2x=102[/tex]

[tex]2x=44[/tex]

[tex]x=22[/tex]

Check: Add 22 to 39. 22+29=51

34/51 = 2/3

Have a great day

Just plug in one x into the equation at a time. You should get 8 outputs.

Answer:

The x values should be on the opposite of the y values

Answer:

c. 216.

Step-by-step explanation:

Answer:

(x - 43)(x + 43)

Step-by-step explanation:

x² - 43² ← is a difference of squares and factorises in general as

a² - b² = (a - b)(a + b), then

x² - 43²

= (x - 43)(x + 43)

Answer:

(x - 43)(x + 43).

Step-by-step explanation:

This is the difference of 2 squares:

a^2 - b^2 = (a - b)(a + b) so here we have:

x^2 - 43^2 = (x - 43)(x + 43).

Answer:

180

Step-by-step explanation:

10% of 300=30

30*6= 180 (to get 60 percent you multiply 10% by 6)

60%=180