Which inequalities are equivalent to r + 45 < 16? Check all that apply.
О r + 45 < 16 - 45
Or +45 - 16 < 16 - 16
r +45 + 3 < 16 + 3
r +45 - 16 < 16
Or + 45 - 45 < 16 - 45

Answer:

21 cent per card

Step-by-step explanation:

5.25 / 25 = .21

because 25 can be divided into the first 2 numbers

Answer:

Step-by-step explanation:

if i new i would tell you but im haveing the same problem

Starting with some solution of volume v and an alcohol concentration of 100c % , if you add 180 mL of 45% isopropyl to it, you get a mixture with a total volume of 180 mL + v.

Each mL of the starting solution contains c mL of alcohol. For example, if the concentration of the starting solution is 80% (so c = 0.8), then each mL contains 80% = 0.8 of one mL of alcohol.

Similarly, each mL of the added solution with 45% concentration contains 0.45 mL of alcohol.

You want the new solution to have a concentration of 70%, so that the ratio of the amount of alcohol in it to the total volume is 70%, meaning

cv + 0.45 (180 mL) = 0.7 (180 mL + v)

and you want to solve for v :

cv + 81 mL = 126 mL + 0.7v

cv - 0.7v = 126 mL - 81 mL

(c - 0.7) v = 45 mL

v = (45 mL) / (c - 0.7)

Judging by context clues, c lies somewhere between 0.7 and 1. (It can't be less than 0.7 because mixing this solution with any other solution of smaller concentration will never yield a solution of higher concentration.)

If, for example, c = 0.8, so that your starting solution is at 80% concentration, then you would need

v = (45 mL) / (0.8 - 0.7) = 450 mL

to be mixed with 180 mL of 45% solution to end up with 180 mL + 450 mL = 630 mL of 70% solution.

As another example, if you're mixing pure alcohol, so that c = 1, you would need

v = (45 mL) / (1 - 0.7) = 150 mL

to make a 180 mL + 150 mL = 330 mL batch of 70% solution. The fact that you would need less of a higher concentration solution is not surprising.

Answer:

1) 16

2) 35

3) 60 degrees

4) 72 degrees

5) (x+7)= 55 y= 70

Step-by-step explanation:

1) Special Triangle - All angles are 60 degrees, so that means all sides are the same length

2) You know that those two angles at the end are the same, so that means each of those side lengths are mirrored.

3) Special Triangle - Each side is the same, so all angles would be 60 degrees

4) You know that those two sides are the same, so their angles would be mirrored

5) You know that those two sides are the same, so their angles would be mirrored, to get 55 on both bottom sides. 55+55= 110 so, you'd need 70 degrees left to make it a triangle as all triangles are fully 180 degrees.

Answer:

48%

Step-by-step explanation:

$1200 divided by %25 = 48%

Answer:

first one 401.76, second one 93.96

Step-by-step explanation:

Answer:

It is C

Step-by-step explanation:

c is the only answer that makes sense because 10 is 5 more than 5 as the length so 5 is 5 less than 10.

The dimensions of the quilt are width = 10 and length = 5 which is the correct answer would be option (C).

The perimeter of a rectangle is defined as the addition of the lengths of the rectangle's four sides.

The perimeter of a rectangle = 2(L+W)

Where W is the width of the rectangle  and L is the length of the rectangle

The length of the quilt Sally is making is five inches shorter than the width. The perimeter measures 30 inches which are given in the question.

The perimeter of a rectangle = 2L + 2W

30 = 2L + 2W

L + W = 15

The length is equal to five inches less than the width.

So L = W - 5

Substitute the value of L = W - 5 in the equation L + W = 15

W - 5 + W = 15

2W = 20

W = 10

L = 5

Therefore, the dimensions of the quilt are width = 10 and length = 5.

Learn more about the Perimeter of the rectangle here:

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Answer:

??????????????????????

Answer: y=1, x=11

Step-by-step explanation: make x in one side in an equation and substitute it in the other and get the value of y then substitute y in one of the equations and get the value of x

x= 8+3y

8+3y+6y=17

9y=9

y=1

X=11

Answer:

D

Step-by-step explanation:

If you know that a and b is parallel. And b and y is perpendicular, since a and b has similar features, then a and y should have similar features as well.

Same Logic:

a=b b=c

then a = c

Answer:

6;2

Step-by-step explanation:

Answer:

1:3

Step-by-step explanation:

Answer:

cool

Step-by-step explanation:

Answer:

what is the question?

Step-by-step explanation:

i dont see it hehe

Answer:

What’s the point of teh question may be tell us what you need help with....?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Cost of one ticket = $ 5

Cost of 'n' tickets = 5 * n = 5n

c = 5n

Answer:

5n=c

Step-by-step explanation:

so we would times 5 with how many friends she has

That would be her total cost

Answer:

- 4/5

Step-by-step explanation:

Step 1:

- 11/15 - 1/15           Equation

Step 2:

- 12/15          Add the negative numbers

Step 3:

- 4/5         Convert

Answer:

- 4/5

Subtracting from a negative number is the same thing as adding them together.

Hope This Helps :)

Answer:

Step-by-step explanation:

2c+3b=2(m+1)+3(m+5)=2m+2+3m+15=5m+17

thanks

The expression 2 C + 3 B equals 5 m + 17 in standard form

What is Linear Equation in 2 variables?

An equation is said to be linear equation in two variables if it is written in the form of ax + by + c = 0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.

Given data ,

The value of C = m + 1

The value of B = m + 5

To calculate the value of 2 C + 3 B , substitute the value of B and C in the expression , we get

2 C + 3 B = 2 ( m + 1 ) + 3 ( m + 5 )

               = 2 m + 2 + 3 m + 15

               = 5 m + 17

Therefore , 2 C + 5 B = 5 m + 17

Hence , the expression 2 C + 3 B equals 5 m + 17 in standard form

To learn more about linear equation in standard form click :

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Answer:

936mm^2

Step-by-step explanation:

Surface area of cuboid 20 mm 8mm 11mm

Surface area of the cuboid=2(20×8+8×11+11×20)

=2(160+88+×220)

=2(468)

=936mm^2

So the answer is936mm^2

Answer:

You too

Step-by-step explanation:

I don't know either, so we are in the same boat.

Answer:

Mixture B

Step-by-step explanation:

Answer:

55,000

Step-by-step explanation:

Look at 40 on the x-axis and the y-axis. The line is inbetween 50 and 60 so the best answer would be 55,000

Answer:

437.90

Step-by-step explanation:

you add the negative numbers together, then the positive numbers. you take the answers from those and subtract them from each other.

The overall loss for the first four months the deli was open is $-437.90.

A firm has a profit when its income is greater than the cost. A loss is recorded when income is less than the total costs. A profit is represented with a positive sign (+) and a loss is represented with a negative sign (-).

In order to determine the overall profit or loss for the first four months add profits and subtract losses.

+ 724.37 + 3,912.26  - 1,051.51 - 4,023.02 = $-437.90.

Costs exceeds revenue so the Deli earns a loss of $437.90.

To learn more about addition, please check: https://brainly.com/question/349488

Answer:

a

Step-by-step explanation:

Answer:

Bruh

Step-by-step explanation:

Im so confused.... lol im not any help

What you're looking for is to simplyfy the like terms and then isolate the variable. So basically, write everything down and solve it like normal. We know that straight lines are worth 180° and right angles are 90° so that's what's gonna be on one side of the equal sign, and all the other numbers on the other side. Like this:

8.

180 = x + 1 + 3x + 9

180 = 4x + 10

170 = 4x

42.5 = x

If it's hard to see what I'm doing, just write the first part out and solve like regular algebra then check if you got the same answer.

Good luck :)

Answer: 1/2

Step-by-step explanation:

1 1/2 = 3/2

1/3 * 3/2 = 1/2

Answer:

The answer is A

Step-by-step explanation: