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olga nikolaevna [1]

2 years ago

8

Find the solution to each equation mentally or use your calculator. (do the opposite of the number on the left side of the equat

ion)
A: 30+a=40

B: 500+b=200

C: −1+c=−2

D: d+3,567=0

2 answers:

Alik [6]2 years ago

7 0

A) a=10

B) b= -300

C) c= -1

D) -3567

finlep [7]2 years ago

6 0

Answer:

A) a=10

B) b= -300

C) c= -1

D) -3567

Step-by-step explanation:

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Use the equation 2,401 = 76 – 2x. What power of 7 is 2,401?

zaharov [31]

Comment
I'm going to take a guess at this and say what you meant is 2401 = 7^(6 - 2x)

Step One
Find out the power of 7 that will equal 2401.
You could do it like this.
7^y = 2401 and just guess at some values.

y 7^y
1 7
2 49
3 7 * 7 * 7 = 343
4 7 * 7 * 7 * 7 = 2401 So the answer is 4

7^4 = 2401

Step 2
Equate the powers.
2401 = 7^(6 - 2x)
7^4 = 7^ (6 - 2x)
4 = 6 - 2x Subtract 6 from both sides.
4 - 6 = - 2x
-2 = - 2x divide by - 2
-2/-2 = x
x = 1 <<<<<<<<<<<<<answer

7 0

3 years ago

Read 2 more answers

2. You are given the hyperbolic relation modeled by xy = -2. Do the following: a) Rewrite the relation such that the dependent v

N76 [4]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The given equation is :

$xy = - 2$

1. The relationship such that dependent variable (y) is isolated is :

$y = \dfrac{ - 2}{x}$

2. The table accompanying this equation :

x = -4 and y = 0.5

x = -1 and y = 2

x = - 0.5 and y = 4

x = 0 and y = undefined

x = 0.5 and y = -4

x = 1 and y = -2

x = 4 and y = -0.5

3. graph of the given equation is in attachment ~

4 0

2 years ago

What irrational number can be added to pi to get a sum that is rational

m_a_m_a [10]

Answer is -pi

Let x be this unknown number. Adding on x to pi gets us the expression x+pi

If we set x+pi equal to zero (which is a rational number) and solve for x, we get

x+pi = 0

x+pi - pi = 0 - pi

x = -pi

so adding pi to -pi will lead to 0 since

x+pi = -pi+pi = 0

5 0

3 years ago

Draw or write to explain why 1 hundred 4 tens and 14 tens name the same amount

mihalych1998 [28]

1 hundred can also be 10 tens so when you add 10 tens and 4 tens you 14 tens and that is the same thing as 14 tens

7 0

2 years ago

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Using the number line below, draw a box and whisker plot for the following data: 12,18,18,20,22,22,25,26,30,30,32,32,35,35,38,49

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

Population size: 17

Median: 30

Minimum: 12

Maximum: 49

First quartile: 21

Third quartile: 35

Interquartile Range: 14

Outliers: none

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2 years ago