— 3х - 6 +(-1)
Helpp
Can anybody help me?

Answer:

a. -7

b. -25

c. 27

d. 15

Step-by-step explanation:

The solution of expression is a) 13 + (-20) = -7

b) (-14) + (-11) = -25

c) 18 - (-9) = 27

d) (-21) - (-36) = 15

a) 13 + (-20) = -7

To add a positive number and a negative number, we subtract the absolute values and use the sign of the number with the greater absolute value.

b) (-14) + (-11) = -25

When adding two negative numbers, we simply add their absolute values and retain the negative sign.

c) 18 - (-9) = 27

Subtracting a negative number is equivalent to adding its positive value. Therefore, 18 - (-9) becomes 18 + 9, which equals 27.

d) (-21) - (-36) = 15

Similar to the previous example, subtracting a negative number is equivalent to adding its positive value. (-21) - (-36) becomes (-21) + 36, which equals 15.

Learn more about expression here

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Answer:

Step-by-step explanation:

y=kx

7/4=1.75

6/4=1.5

The equation in the form y =kx will be as y = 7/4 x .

Proportional the type of relationships between two variables where their ratios are equivalent.

In a proportional relationship, one variable is always a constant value by the other. That constant is known as the constant of proportionality.

A proportional relationship between the variables x and y is written as:;

y=k.x

For the given problem, y represents the cups of water needed for making x loaves of French bread.

We know that Marley used y=7 cups of water to make x=4 loaves of French bread. Substituting into the equation;

7=k.4

Solving for k:

k = 7/4

The equation to model the problem;

y = 7/4 x

More can be learned about proportions at;

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Answer:

40:60 so 60 dogs

Step-by-step explanation:

Its multiplied by 20

Answer:

8n-6n6

Step-by-step explanation:

collection of like terms

4n+4n-3n3-3n3

8n-6n6

Answer:

he sum of a number and 16 is equal to 45. 2. The product of 6 and m is 216. 3. The difference of 100 and x is 57. 4. The quotient of z and 10 is 32. X+16= 45.

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

45 divided by 3 is 15 and if you multiply that by 2 you get 30. 32 - 2 is 30

Answer:

m = Q/L

Step-by-step explanation:

Step 1: Write equation

Q = mL

Step 2: Solve for m

Answer:

There was a 25% increase.

Step-by-step explanation:

=======================================================

Explanation:

Slope is the same as the rate of change for any linear function. We ignore the y intercepts.

The slopes of the four equations, A through D, are: 7/6, 7/5, 6/5, and 5/4

This is because each equation is in y = mx+b form with m as the slope.

Convert each fractional slope into decimal form

We see that 7/5 produces the largest decimal, so 7/5 is the largest fraction of the four slopes.

Therefore equation y = (7/5)x+7/5 has the greatest rate of change.

Answer:

simply no

Step-by-step explanation:

Answer: Hypothesis is "It is hot"

The general form of a conditional is "If hypothesis, then conclusion"

You may see it as "If P, then Q". P and Q are placeholders

In this case, the conclusion is "It is summer".

Answer:

d, I think

Step-by-step explanation:

absolute val of 5 is greater than absolute val of 4

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I think It must be 1,728.

So :

[tex] \sqrt[3]{1728} = 12[/tex]

Thus each of its sides has a length of 12 inch.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Answer:

p(A or more than 10) = 0.7 + 0.4 - 0.2 = 0.9

Step-by-step explanation:

Given the following probabilifu distribution :

Probability that show had animals in it :p(A) = 0.7

Probability that show aired more than 10 times : p(more than 10) = 0.4

Probability that show had animals and aired more than 10 times: p(A n more than 10) = 0.2

Recall:

P(A or B) = p(A) + p(B) - p(A n B)

Hence,

p(A or more than 10) = p(A) + p(more than 10) - p(A n more than 10)

p(A or more than 10) = 0.7 + 0.4 - 0.2 = 0.9

Answer:

57 is the least out of the 4 numbers or integers here

Step-by-step explanation:

57,58,59,60

hope this helps ;)

Answer:

Step-by-step explanation:

I'm still not exactly sure what the question really is, but the level suggests that it is

y = (6/7)x + 5

Any line that is parallel to this line has a slope of 6/7

Any line that is perpendicular to this line is a little more complicated.

slope of given line * slope of perpendicular line = - 1

6/7 * perpendicular slope = - 1  

Multiply by 7

6*perpendicular slope = - 7

Divide by 6

perpendicular slope = - 7/6

Answer:

13

Step-by-step explanation:

9+4=13

when dividing, exponents subtract

Answer:

The Answer is 20^13

Step-by-step explanation:

to solve this equation all you have to do really is look at the exponents

anytime your dividing an exponent its subtraction so if the top is 20^k and ur looking for k look at the other numbers we have on the bottom of the fraction

20^4 and we have the answer as 20^9 , all we have to do it add the exponents 4 and 9 to get 13

High Hopes ^^

Barry

Answer:

x-6 + 2x-8 = 10

Step-by-step explanation:

ST + TU = SU

x-6 + 2x-8 = 10

Combine like terms

3x - 14 = 10

Add 14 to each side

3x-14+14 = 10+14

3x = 24

Answer: C

Step-by-step explanation:

Answer:

142

Step-by-step explanation:

The computation of the Consumer Price Index (CPI) today is shown below:-

Real Salary today / Real Salary 5 years ago = CPI today ÷ CPI 5 years ago

CPI today ÷ 100 = 8.50 ÷ 6

= 142

Therefore for computing the Consumer Price Index (CPI) today we simply applied the above formula and the same is to be considered

Answer:

Because the sides BO and MA are marked with one line through the middle, which means those sides are congruent, angle A and Angle O are marked with one line, the angles are congruent, and angles W and N are marked with two lines, which means they are congruent. Therefore the triangles are congruent

Answer:

x=3

Step-by-step explanation:

15-2x=3x

solve for x:

15=5x

divided by 5:

3=x

Answer:

x = 3

Step-by-step explanation:

15  -2x = 3x     {Add 2x to both sides}

15 = 3x + 2x

15 = 5x

15/5 = x         {divide both sides by 5}

x  = 3

Answer:

Segment CA || Segment HR (by Converse of the Corresponding Angles Postulate)

Step-by-step explanation:

Postulate Segment CA || Segment HR by Converse of the Corresponding Angles

Explanation:

For every problem, plug in the number where the variable is.

For example:

Evaluate the following expression by substituting 8 for x.

x + 9

You would take the x and turn it into 8, then you would do 8 + 9.

Answer:

1)  

a= 17

b= 7

c= 56

d= 4

e= 29

f= 10

g= 18

h= 4

2)

a= -1

b= 2/3

c= -4/3

d= -5/3

e= -2

f= -8/3

g= -14/9

h= -17/9

3)

a= 1/2

b= 5/6

c= 1/6

d= -1/3

e= 1/3

f= 5/12

g= 7/18

h= 0.75

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

Substitute a and b

3|-9-3|

3|6|

Multiply your answer and you get 36

Answer:

Then you don't change the sign.

Two like signs become a positive sign.

Two unlike signs become a negative sign.

Answer:

7x=42=6

Step-by-step explanation:

7x=42

x=42/7

x=6

Answer:

Step-by-step explanation:

x    ← a number

7x   ← seven times the number

x - 42    ← forty-two less than the number

Seven times a number is forty-two less than the number.

7x  =  x - 42

-x      -x

6x  =  -42

÷6      ÷6

 x  =  -7