the ratio of red marbles to blue marbles in a bag is 4:7. There are 16 red marbles.How many blue marbles are there? solve for indicated variable.

Answers

Answer 1

Answer: red marbles : blue marbles = 4:7

16 - red marbles
x - blue marbles

$(16)/(x)=(4)/(7) \n 16 * 7 = 4x \n4 * 7 = x \nx=28$

There are 28 blue marbles.

Answer 2

Answer: 4x - number of red marbles
7x - number of blue marbles

$4x=16\nx=4\n\n7x=7\cdot4=\boxed{28} \leftarrow \hbox{number of blue marbles}$

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Answers

Answer:

the other guy is wrong take my advice its diffidently B:

"1 and 2 are congruent because they are a pair of corresponding angles"

Step-by-step explanation:

i took the test and this is the correct answer.

-hope you all do good on your tests.

-here's proof so you know you don't get the answer wrong.

-have a good day :)

if the recycling club collected 48 aluminum cans 3/4 of the cans was from 6th grade was 1/6 was from 7 grade and the rest was from 8th grade how many cans were collected by 8th grade

Answers

Answer: 4 cans

Step-by-step explanation:

If you evaluate all the amounts of cans collected from each grade you get 44 so the remainder is 4 so the number of cans that came from eighth grade is 4

Which of these equations represent functions? Check all that apply.A. y = (x - 2)^2 + 5
B. x^2 - 4y^2 = 1
C. y = 3x - 3
D. y = 4x^5

Answers

A is quadratic function
B is equation of a circle
C is equation of a line
D is hiperbolic funciotn

Which of the inequalities represents the statement, "two times a number x, less 15, is greater than or equal to 4 times the number y"?

Answers

The choices are:

A)
2x - 15 ≤ 4y

B)
2x - 15 ≥ 4y

C)
15 - 2x ≤ 4y

D)
15 - 2x ≥ 4y

Therefore, the best and most correct answer among the choices provided by the question is the fourth choice "15 - 2x ≥ 4y". I hope my answer has come to your help. God bless and have a nice day ahead!

we know that

1) The expression "two times a number x, less $15$ ", represent the equation

$2x-15$

2) The expression " $4$ times the number y", represent the equation

$4y$

3) The expression "is greater than or equal to", represent the symbol

$\geq$

4)The complete expression "two times a number x, less $15$ , is greater than or equal to $4$ times the number y", represent the inequality

$2x-15\geq 4y$

using a graphing tool

see the attached figure

The solution is the shaded area below the full line

The answer is

$2x-15\geq 4y$

What is the perimeter of this shape? A. 16 cm B. 18.5 cm C. 34 cm D. 37 cm

Answers

the answer is C. 34 cm

the answer is c. 34cm add the lengths of all sides

Please help me please please

Answers

We have to consider the Order of Operations
And Divide the question into different parts
So we first do the Exponent: $2^(5)$ = 32
(3×32-26)=(96-26)=70
Solve the parts in parenthesis
(8-(4-9)=(8-(-5)=(8+5)=13 (minus and minus becomes addition)
Distribute 7
7(13)=91
Now put the equation and equate everything
(3× $2^(5)$ +13(-2))+7(8-(4-9)=70+91=161
Final Answer=161

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