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3 years ago

9) 67% of what is 86

Mathematics

2 answers:

Aleks [24]3 years ago

6 0

Answer:

The answer is 57.62

Step-by-step explanation:

Cross multiply x/86 = 67/100 and then get 100x = 5762

divide both sides by 100 then you get 57.62

andrezito [222]3 years ago

5 0

Answer:

57.62

Step-by-step explanation:

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Vina has $4.70 in quarters, dimes and nickels in her purse. She has eight more dimes than quarters and six more nickels than qua

DanielleElmas [232]

Nickels (0.05): Q + 6

Dimes (0.10): Q + 8

Quarters (0.25): Q

Nickels + Dimes + Quarters = Total

0.05(Q + 6) + 0.10(Q + 8) + 0.25(Q) = 4.70

0.05Q + 0.30 + 0.10Q + 0.80 + 0.25Q = 4.70

0.40Q + 1.10 = 4.70

0.40Q = 3.60

Q = 9

Nickels (0.05): Q + 6 = (9) + 6 = 15

Dimes (0.10): Q + 8 = (9) + 8 = 17

Answer: Nickels = 15, Dimes = 17, Quarters = 9

4 0

3 years ago

Solve the linear equation 1: 5x+8/9=2x-7/18 2: 3x+3/5=6x-2/10

WARRIOR [948]

Answer:x= - 23/54

x= 3/20

Step-by-step explanation:

i hope this helps

5 0

2 years ago

Read 2 more answers

Please tell me the answer and explain

k0ka [10]

Answer:

answer is

{X^2 + 4, X<2

{X + 4, X>2

Step-by-step explanation:

Because both solution set graph is at the begining hole at the value of X = 2 this means both sets doesn't contain 2.

7 0

2 years ago

Find the center and radius of this circle: (x+2)^2 + (y-3)^2 =100

Flauer [41]

Answer:

center:-2,3

Radius:10

Step-by-step explanation:Happy to help :)

7 0

3 years ago

Determine if the graph is a function then state the domain and range.

nignag [31]

<h3>Explanation</h3>

A function is a set of relation that doesn't have repetitive domain. If we want to know if a graph is function or not, we have to do the line test.

Line Test

Draw a vertical line. Make sure that a line passes through a graph.
See if a line intercepts a graph more than one point or just only one.

Result

If a line intercepts a graph more than one point, it is not a function.

However, if a line only intercepts a graph just one point, it is indeed a function.

The given graph from the question is a function because it passes line test.

Domain and Range

Domain is the set of all x-values, meaning we only focus on x-axis or x-value only.

Range is the set of all y-values. We only focus on y-value or y-axis for Range.

Determine Domain from Graph

We can simply say that the domain is from starting domain or x-coordinate point to end x-coordinate point. For example, if a graph starts at x = -4 and ends at x = 2, we can say that - 4<=x=2.

Determine Range from Graph

Similar to Domain except Range starts from the minimum value or point to the maximum point or value. For example if a graph starts at min point = 6 and max point = 9. We can say that 6<=y<=9.

From the graph, the domain starts from negative infinity to positive infinity. Meaning that x can be any numbers. Hence, the domain is set of all real numbers. For range, the minimum value is 0 and max value is positive infinity. Therefore we write y>=0.

<h3>Answer</h3>

 $\begin{cases} x \in \mathbb{R} \\ y \geqslant 0 \end{cases}$ 

Domain is set of all real numbers.

Range is greater or equal to 0.

8 0

3 years ago