help please because i am very dumb

Answer:

264.6

Step-by-step explanation:

Answer:

264.6

Step-by-step explanation:

ok first of all if you are subtracting a negative the it becomes a positive

136 - (-128.6)

136 + 128.6

this is what goes on in my head you don't have to do it this way but i do

100 + 100 = 200

30 + 20 = 50

6 + 8.6 = 14.6

200 + 50 + 14.6 = 264.6

Answer:

rate of interest is 6 percent per annum.

Step-by-step explanation:

Formula for simple interest is given

SI = p*r*t/100

where

SI is simple interest

p is principal

r is the rate of interest

t is the time

_______________________________

Given

p = 6400

SI = 768

t = 2 years

r we have to find

lest sue the above formula and plug the given value in it

768 = 6400*r*2/100

=> 768 = 128r

=> r = 768/128 = 6

Thus, r = 6%

thus, rate of interest is 6 percent per annum.

Answer:

C

Step-by-step explanation:

Doing the quiz rn myself

Answer:

I Couldn't find a variable to solve for.  This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Step-by-step explanation:

Simplify

-4 + 2x = 5 + -1(x + -3) + 3x

Reorder your terms

-4 + 2x = 5 + -1(-3 + x) + 3x

-4 + 2x = 5 + (-3 * -1 + x * -1) + 3x

-4 + 2x = 5 + (3 + -1x) + 3x

Combine your like terms 5 + 3 = 8

-4 + 2x = 8 + -1x + 3x

Combineyour like terms -1x + 3x = 2x

-4 + 2x = 8 + 2x

Add -2x to each side of your equation.

-4 + 2x + -2x = 8 + 2x + -2x

Combine your like terms: 2x + -2x = 0

-4 + 0 = 8 + 2x + -2x

-4 = 8 + 2x + -2x

Combine your like terms: 2x + -2x = 0

-4 = 8 + 0

-4 = 8

Solving

-4 = 8

I'm sorry but I Couldn't find a variable to solve for.  This equation is invalid, the left and right sides are not equal, therefore there is no solution.

The solution will be 180mL of hydrochloric acid.

A mixture is a substance made up of two or more dissimilar chemical compounds that are not chemically linked in chemistry. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

Given a mixture is a substance made up of two or more dissimilar chemical compounds that are not chemically linked in chemistry. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

The amount of hydrochloric acid will be calculated as below:-

1500 x 12% = 180mL

Therefore, the solution will be 180mL of hydrochloric acid.

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Answer:

It will take him 1 hour and 30 minutes. (90 minutes)

Step-by-step explanation:

If he is running 1 mile in 10 minutes and he needs to run 9 miles the just multiply 9 by 10 to get 90 then simplify if you need to to get 1 hour and 30 minutes.

Hope this helped and have a great rest of your day.

Answer:

Step-by-step explanation:

Answer:

(-1.5, 0) and (0, -6)

Step-by-step explanation:

Answer:

-1, -1

Step-by-step explanation:

hope this helped

Answer: x = 1

Step-by-step explanation:

So you need to get x completely alone, so take c out of it by subtracting c

-3x = -3 -2c

x = 1 +2/3c

so you would plug that in to solve for C

So you know what x is (or the substitute for it right now)

-3(1 + 2/3c) + 2c = -3

multiply or add

-3 - 2c + 2c = -3

c is 0 when you combine

-3x + 0 = -3

-3x = -3

x = 1

Answer:

6/16n is your answer I think

Answer:

2/5 of the cake

Step-by-step explanation:

First, find how much she gave away:

2/5 + 1/5

= 3/5

Then, to find how much she has left, subtract 3/5 from 1

1 - 3/5

= 2/5

So, she has 2/5 of the cake left for herself

Answer:

y=5x/6-10/6

y=5x/6-5/3 ( simplified)

Step-by-step explanation:

5x-6y=10

slope intercept form :

-6y=-5x+10

y=-5x/-6 +10/-6

y=5x/6-10/6

y=5x/6-5/3

Step-by-step explanation:

(1-3i)-(2-i)=

1-2-3i+i=

-1-2i

1-2-3i+i

= -1-2i

Step-by-step explanation:

I simplified it in a simple way by arranging like terms together and did the calculation. Here the like term of 1 is -2 and for -3i it's i. so 1-2= -1 and -3i+i= -2i according to integers rule.

Answer:

36 books

Step-by-step explanation:

9=6

6*4=24 (9*4=36)

Answer:

(-4,-0.5)

Step-by-step explanation:

midpoint = ((x1+x2)/2, (y1+y2)/2)

               = ((-5+-3)/2, (-4+3)/2)

               = (-8/2, -1/2)

               = (-4,-0.5)

Answer:

4.5 is the range

Step-by-step explanation:

Ok, so it's asking for range, Range means The Highest number minus the smallest number.

What is the highest number? it's "2.3"

What is the lowest number? it's "-2.2"

so subtract those numbers and you get your answer!

Wait... why is the range 4.5? well, you do 2.3-(-2.2) when there are 2 minuses, you switch it to a + sign. so, 2.3+2.2=4.5!

Answer:

109.6cm^2

Step-by-step explanation:

To find the area of a trapezoid the formula is (a+b)/2*h so for this problem, (12+15.4)/2*8= 27.4/2*8= 13.7*8=109.6cm^2

Hope this helped you out! :)

Answer:

x is a real number

Step-by-step explanation:

Answer

1360

Step-by-step explanation:

4x10 is 40 so you'd have to multiply 40x34 which is 1360

136×10 is the amount of water used by the airplane to deliver 34

trips.

Multiplication is a method of finding the product of two or more numbers

Given that Airplanes are sometimes used to fight fires.

A certain airplane can deliver 4 x 10 liters of water in one trip.

We need to find how much water can the  airplane deliver in 34

trips

Let us find the water used for one trip.

1 trip is 4 x 10 liters which is 40 litres.

Now we have to find for 34 trips.

We have to multiply 34 with 40 litres

34×40

Thirty four times forty

1360

Now we have to convert it to the scientific notation 136×10

Hence, 136×10 is the amount of water used by the airplane to deliver 34

trips.

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Answer:

As the percent of woodland increases, the number of deer observed in a group decreases quickly at first and then more slowly.

Step-by-step explanation:

Since the graph is nonlinear, you can rule out answers that say or suggest 'constant change.'

Answer:x=30

Step-by-step explanation:

So first you have to find x so add all your sides together:

Equation: 45+2x+0.5x+x=150

Combine like terms: 45+3.5x=150

Subtract 45 from -45 -45

both sides: 3.5x=105

Then divide by 3.5: x=30

Now that you have your x substitute it in:

2(30)=60

0.5(30)=15

and the last one is x=30

And there you have all your sides! If you wanna check it just add up all the sides and it should equal 150.

Answer:

8:3 and 3:8

Step-by-step explanation:

Answer:

A graph with points connected by lines to show how something changes in value:

• as time goes by,

• or as something else changes.

Step-by-step explanation:

Answer:

This is a line graph

Step-by-step explanation:

Answer:

where is the graph??

Step-by-step explanation:

Answer:

14 miles

Step-by-step explanation:

Assuming each horse was only ridden once

then a total of 13 horses were ridden for a total of 182 miles

182 miles / 13 horses  = 14  miles  horse

Of course, if each horse was ridden more than once before being replaced the distance between replacements could be reduced.

Note that the fact that there were 3 riders is irrelevant.

Answer:

65%

Step-by-step explanation:

13/20 are recycled

We want a percent, which is out of 100

Multiply the top and bottom by 5

13*5 = 65

20*5 =100

65/100 = 65%

Answer:

65%

Step-by-step explanation:

I took the test