the ratio of blue marbles to red marbles in a bag is 11:9.If there are 99 blue marbles in the bag,how many red marbles are there?

Answers

Answer 1
Answer: Let the number of red marbles be x.

We have: 99/x = 11/9

Cross multiply:
11x = 99*9
⇒ x= (99*9/11)= 81 

There are 81 red marbles~

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Consider the following formula:

ax-bc+y=z

What represents the formula for x?

Answers

Answer:

x = (z-y)/(a-b)

Step-by-step explanation:

Given ax-bx+y=z, we are asked to isolate x. To do so, first take common factor between the first and the second terms

ax-bx+y=z  

(a-b)*x+y = z

Then, isolate the x term by subtracting y at both sides

(a-b)*x+y-y = z-y

(a-b)*x = z-y

Finally, divide by (a-b) at both sides

(a-b)*x/(a-b) = (z-y)/(a-b)

x = (z-y)/(a-b)

Answer: z-y+bc/a

Step-by-step explanation:

ax-bc+y=z

ax-bc=z-y

ax=z-y+bc

x=z-y+bc/a

Use mental math to find the unknown number in the equation 12 x b= 480

Answers

The solution for b is 40

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

12 x b = 480

Dividing by 12 on both sides , we get

b = 40

Hence , the value of b = 40

To learn more about equations click :

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So find out what times twelve equals 48. Then add a zero in front and that is your answer.

Will the side lengths 11,20,35 form a triangle??

Answers

Answer:

No, because sum of two sides smaller than third side

Step-by-step explanation:

11 + 20 < 35

Determine the degree of the polynomial −65b+53x3y.

Answers

Answer:

Degree = 4

Step-by-step explanation:

The degree of a term is the sum of the exponents of its variables and the degree of a polynomial is the highest degree of all its terms. The highest degree of all the terms in −65b+53x^3y is 4. So, the degree of −65b+53x^3 y  is 4.

Answer:

4

Step-by-step explanation:

The degree is the largest exponent on the variable.

4

Tabitha bought peppers that cost $0.79 per pound. She paid $3.95 for the peppers. How many pounds of peppers did she buy?

Answers

5 because $3.95 divided by $0.79 equals 5 pounds.
$3.95* (1 pound/ $0.79)= 5 pounds.

Tabitha bought 5 pounds of pepper~

A pump currently contains 4 7/8 gallons of water but needs to be filled to capacity. The capacity of the pump is 9 5/8 gallons. How much more water is needed to completely fill the pump? Express your answer in simplest mixed-number form.

Answers

Hi There

To solve this problem you must subtract

Steps
1. Determine The Capacity

2. Determine how much the pump contains

3. Subtract 9 5/8 - 4 7/8

4. 5 and 7 cant subtract

5. Regroup 9 5/8 to 8 13/8

6. Now you have to subtract 8 13/8 - 4 7/8

7. You're answer from step 6 should be 4 3/4

So, 4 3/4 water is needed to completely fill the pump.

Hope This Helped :)

Answer:

The answer is 4 3/4


Step-by-step explanation

77/8 - 39/8 = 38/8 = 4 3/4