How can I evaluate y=1

Answers

Answer 1

Answer: I am not sure tho y= 1/1

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Evaluate,
10^-4

thanks

Answers

With 10 to the power to a negative number, it's easier.
Here's a trick: The negative number is the places to the right of the decimal. The last number is a 1, while the rest are 0s.

From this, we get: $10^(-4)=\boxed{0.0001}$

10^4 = 10000 (four zeros at the end)
10^-4 = 0.0001 (four zeros at the front)

Write equations for the horizontal and vertical lines passing through the point (7, -1).horizontal line:

vertical line:

Answers

Check the picture below.

Horizontal line is y=-1
Vertical line is x= 7

An airplane flies 2,951 miles in 6.5 hours. What is the speed of the airplane in miles per hour?

Answers

The answer is 454. How to solve? Simple! Just divide 2951 and 6.5.

I am two numbers, the sum of my numbers is 100, the difference between my two numbers is 30,

Answers

The two numbers are 35 and 65.

What is an equation?

Mathematically, an equation can be defined as a statement that supports the equality of two expressions, which are connected by the equals sign “=”.

For example, 2x – 5 = 13.

Given that, two numbers, their sum is 100 and the difference between them is 30. We need to find the number,

Let the 2 numbers be x and y.

y = x + 30

Sum of the two numbers = 100

x + y = 100

x + (x + 30) = 100

2x = 70

x = 35

y = x + 30 = 65

Hence, the two numbers are 35 and 65.

Learn more about equation, click;

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Let the 2 numbers be x and y.
y = x + 30 ( as the difference between the two numbers is 30)
Sum of the two numbers = 100
=> x + y = 100
=> x + (x + 30) = 100 ( as y = x + 30 as shown above )
=> 2x = 70
=> x = 35
y = x + 30 = 65
Hope I helped! you may comment here if you have any further doubts and i will answer them :)

Help me with 7 AND TELL ME HOW U DID IT PLS

Answers

According to the data,
20 foot = 2.5 inches

if we want to find out the measurement for 1 foot, 2.5 inches has to be divided by 20.
1 foot = 2.5/20 = 0.125

If it is increased to 28 foot, answer should be multiplied by 28.
0.125*28 = 3.5 in

Answer c is correct

1 foot = 12 inches, but
Scale
= 2.5 inches : 20 feet
= 1 inch : 8 feet

New size = 28 feet
Therefore,
Let the corresponding measurement be x inches.
So,
1 : 8 = x : 28
1 x
-- = ----
8 28

28
x = ---- = 3.5 inches
8

1/5m + 6 = 3/4
What is m?

Answers

1/5m + 6 = 3/4

subtract 6 from each side

1/5m = 3/4 - 6

divide 1/5 from each side

m = 3/4÷1/5 - 6/5

simplify

m= 3/4 × 5 - 6/5
m = 15/4 - 6/5
m = 75/20 - 24/20
m = 51/20

m = 2 11/20

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