15 - 4x = -9x + 75
2. Solve the next Equation for
B.
20
A. 12
D.
- 12
C. - 25

Answer:

you can set up a proportion

16.0/130  = x/2150

by cross multiplying you get

130x = 34400

divide by 130 and get

x-264.62

Find his rate by dividing total miles by hours:

756 miles / 12 hours = 63 miles per hour.

Multiply the rate by number of hours:

63 x 7 = 441 miles

Answer:

441 miles

Step-by-step explanation:

756 deived by 12 = 63x7 =

441 miles

Answer:

Step-by-step explanation:

Answer:

These equations describe two lines that intersect at the point (-1, 8), one of them with a slope of 3, the other with a slope of -4.

Step-by-step explanation:

We can find the point where these two lines intersect by taking one of the equations, solving it for x, and substituting it into the other equation.

[tex]y = -4x + 4\\-4x = y - 4\\4x = 4 - y\\x = 1 - \frac{y}{4} \\\\y = 3x + 11\\y = 3(1 - \frac{y}{4}) + 11\\y = 3 - \frac{3y}{4} + 11\\y + \frac{3y}{4} = 3 + 11\\\frac{4y}{4} + \frac{3y}{4} = 14\\\frac{7y}{4} = 14\\y = \frac{4}{7} * 14\\y = 4 * \frac{14}{7}\\y = 4 * 2\\y = 8[/tex]

Now we can plug that into our first equation to find x

[tex]x = 1 - \frac{y}[4}\\x = 1 - \frac{8}[4}\\\\x = 1 - 2\\x = -1[/tex]

So these lines intersect at the point (-1, 8), one of them with a slope of 3, the other with a slope of -4

Answer:

for neg its -6-6 and for the right side 8-3

Step-by-step explanation:

Answer:

15 equations

Step-by-step explanation:

Let

Number of equations in the homework = x

There is only a one-word problem

y = amount of time used to solve the word problem

She took 3 minutes to solve each equation, then 7 minutes to solve the word problem if it took her 52 minutes total,

Total = 3x + y

52 = 3x + 7

Subtract 7 from both sides

52 - 7 = 3x + 7 - 7

45 = 3x

Divide both sides by 3

x = 45 / 3

= 15

x = 15 equations

Therefore, she solved 15 equations

Answer:

2.88 ...........................

Answer:

I'm assuming your problem looks like this: 4+5*6-3 =? To solve this problem you need to use the order of operations. PEMDAS which stands for Parentheses, exponents, multiply and divide, and lastly add and subtract. You must multiply and divide before you add and subtract so you must do 5*6 first. You now get 4+30-3. Now all you have left is addition and subtraction so you now just go from right to left and do one at a time. So 4+30 = 34 , 34-3=31. Therefore your answer should be 31. Hope that helped!

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The slope is 7.

The y-intercept is (0, -3).

Answer:

B

Step-by-step explanation:

ape x

Answer:

Use the associative property of multiplication to rewrite (5 x 4) x 3 In order to rewrite the expression, take the parenthesis off of the first two factors and put them around the last two factors. Answer: 5 x (4 x 3) Example: Use the associative property of multiplication to rewrite (6 x 2) x 7

Answer:

Step-by-step explanation:

So the sign means that y has to be less than or equal to x plus 9

if you wanted an answer an example could be

y = 1

x = 10

this works because if implemented into the equation

1 ≤ 10 + 9 which is true

Answer:

C

Step-by-step explanation:

add 1/3 to 2 cuz they both are coefficient of X ... and add -2 and -6 because they both have no coefficients.... i mean just combine like terms !

Answer:

B

Step-by-step explanation:

3x^2+7/3x-8

Answer:

little more points

Step-by-step explanation:

Answer: C

Step-by-step explanation: Found where I can put this answer. All you have to do is if you have a graphing calculator like I do (TI-84) or you can look one up and do it. You just plug each answer into Y equals until you get the graph that the question shows you.

Answer:

there is no backgroung information?

Step-by-step explanation:

Answer:

PY = 3 sqrt 3

Step-by-step explanation:

Hope it helps.

Answer:

y= 3(x+5)^2 -4

Answer:

I disagree. Open book tests, you can see the answers, and the test usually goes by pretty quick and smoothly because of this. Traditional tests, sometimes you don't even get notes, and so you can struggle more with that then with open book tests.

Step-by-step explanation:

I got 100% on Edge!

Answer:

I believe that open book test are easier simply because the answers are right in front of you all you have to do is search for them and not copy directly from the book. One way you can prepare for it is to memorize what information is on each page so you don't constantly flip back and forth from the pages

Step-by-step explanation:

got 100

Answer:

meee

Step-by-step explanation:

i love august d very much

i Do; I like a lot of rap songs of any type

Answer:

6

Step-by-step explanation:

4.5 dived by 3/4 equals 6

Answer:

41º

Step-by-step explanation:

An angle bisector splits an angle in half. So angle LKM+angle MKJ=angle LKJ. We know angle LKJ=82º, so angle LKM=angle MKJ=82º/2=41º.

Answer:

Step-by-step explanation:

a). [tex]\text{cos}^4(\frac{\theta}{6})-\text{sin}^4(\frac{\theta}{6})=\text{cos}\frac{\theta}{3}[/tex]

   By solving left hand side of the equation,

   = [tex][\text{cos}^2(\frac{\theta}{6})-\text{sin}^2(\frac{\theta}{6})][\text{cos}^2(\frac{\theta}{6})+\text{sin}^2(\frac{\theta}{6})][/tex]

   = [tex][\text{cos}^2(\frac{\theta}{6})-\text{sin}^2(\frac{\theta}{6})](1)[/tex] [Since, cos²a + sin²a = 1]

   = [tex]\text{cos}\frac{\theta}{3}[/tex] [Identity used → cos²a - sin²a = cos(2a)]

Hence, left hand side of the given equation = Left hand side of the equation.

Answer:

Alright, so for Heads, it would be 26/50. As for Tails, 24/50

Answer:

x = 31

Step-by-step explanation:

The 2 sides are congruent, meaning the 2 angles are equal so:

47 = x + 16

subtract 16 from both sides

31 = x

______________________________

______________________________

Answer:

The unit rate is $9.20 per toy

Step-by-step explanation:

Since the total of the toys is 46, you divide by 5, to see how much each toy is

Answer:

$5004

Step-by-step explanation:

.4% of 5000 is $4 and adding that to 5000 makes the end result $5004