Mathematics High School

Please help ASAP
Marcy made an error when solving the equation below.
8m - 20 = 36
8m - 20 + 20 = 36
8m = 36
8m = 36/8
8m = 4 4/8
8m = 4 1/2
A. Identify Marcy's error and use one or more number properties to explain why it resulted
in an incorrect solution.
B. Correctly solve 8m - 20 = 36 form. Show your work

Answers

Answer 1

Step-by-step explanation:

it maybe

8m= 36+20

m=56/8

=7 answer

Related Questions

which describes the function on the graph-below?

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Answer:

The first one

Step-by-step explanation:

Simplify. 3x−6
Assume no denominator equals zero.

Answers

Step-by-step explanation:

3x-6 =0

3x= 6-0

3x =6

x=6/3

x=2

whats 2+2 if you have 2 pencials A 4 B 4 C 4 D 8

Answers

Answer:

4.

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

2+2=4

:)

PLS MARK ME THE BRAINLIEST I NEED 2 MORE TO GET TO EXPERT

PLEASE HELP ASAP!!!!!!! Why is it possible that globalization will have a negative effect on Africa's economy?

Answers

Answer:

This is your answer ☺️☺️☺️

At The Family Farm it costs $4 to enter the barn and an
additional $2 for each animal you want to feed. Which
expression represents the cost of feeding y animals?

Answers

Answer:

4 + 2y = x

________________________________

Please help me i need help ​

Answers

Answer:

sin is .6, Cos is .8 and tan is .75

Step-by-step explanation:

Ez

PLS HELP BRO MY GRADE IS LITERALLY A D- IN MATH!

Answers

y=mx+b
y=-2/12x-8
Simplify:
y=-1/6x-8
Slope intercept is really easy. m is the slope. All you have to do is find 2 points and use rise/run. Rise is how many up or downs (numerator). Run is left or right (denominator). We are given 2 points in the graph. So I counted, 2 down, 12 left. So 2/12. Now remember if the line is going down from left to right, it’s a negative slope. So -2/12. To find the y intercept, just find where the line meets at the y intercept, here it’s -8. So y=-2/12x-8. y=-1/6x-8

34 < 6 + d
Solve the inequality

Answers

Answer:

28< 6

Step-by-step explanation:

34 < 6 + d

Subtract 6 from each side

34-6 < 6 + d-6

28< 6

Answer:

28<d

Step-by-step explanation:

Since all you need to do is find d, to do this do the inverse operation of 6 which is -6 and add them to both sides which gives you 28<d

(3x+1)(3x^2-6x-8) in standard form

Answers

Answer:

 

3s3x2+6x+4.3x2+6x+4

Out of 200 students, 10 had a cleft chin.
What percent of students had a cleft chin?

Answers

Answer:

chin

Step-by-step explanation:

stan kim namjoon for good grades and clear skin

Answer:

5 percent

Step-by-step explanation:

200 of 10 was 5 percent

Multiplying by which number is equivalent to an increase 49.5%

Answers

Answer:

22.46

Step-by-step explanation:

'Percent (%)' means 'out of one hundred':

p% = p 'out of one hundred',

p% is read p 'percent',

p% = p/100 = p ÷ 100.

49.5% = 49.5/100 = 49.5 ÷ 100 = 0.495.

100% = 100/100 = 100 ÷ 100 = 1.

Increase the number by 49.5% of its value.

Percentage increase = 49.5% × 22.46

New value = 22.46 + Percentage increase

22.46 equivalent an increase 49.5%

Find the total surface area of this cuboid.

Answers

Step-by-step explanation:

I just learned this in class lol

Find the area of all the sides.

This cubiod has 6 sides.

6 x 5 = 30

6 x 5 = 30

4 x 5 = 20

4 x 5 = 20

6 x 4 = 24

6 x 4 = 24

30 + 30 + 20 + 20 + 24 + 24 = 148

Thefore, the surface area of this cuboid is 148.

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

If there is one obtuse angle, how many angles are
acute?
a 2
b 3
C 1
d 6

Answers

Answer: a .2

Step-by-step explanation: A triangle is 180 degrees.  If one angle is obtuse, it is more than 90 degrees.  That leaves the two remaining angles having to add up to less than 90 degrees combined.  So both have to be acute.

Please please please help me I need a 80 to pass

Answers

Answer:

fb=7 units

Step-by-step explanation:

Answer:

If they’re both equal to each other in length and both pentagons, then I think the answer is 7 units.

I’m struggling hardcore and I’m an online student!! I need this done by tomorrow but I am so confused on everything

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Answer:

I'm but ask a assistant

Step-by-step explanation:

ok

What is the measurement of arc BE?

Answers

The answer is 134 degrees

Given the function 4x + y =2 what are the x and y intercepts of this function

Answers

Answer:

x intercept: (1/2,0)

y intercept: (0,2)

Step-by-step explanation:

Plug y=0 into the function when you are solving for the y intercept, and plug x=0 into the function when you are solving for x intercept.

9-3X+1/3-2+10- -3/2=

Answers

Answer:

9-3x+1/3-2+10+3/2

17-3x+11/6

113/6-3x

Step-by-step explanation:

Find the value of c such that the expression is a perfect square trinomial.
x^2+12x+c

Answers

Answer:

c = 36

Step-by-step explanation:

If the coefficient of [tex]x^{2}[/tex] is one, then c = [tex](\frac{12}{2}) ^{2} = 6^{2} = 36[/tex]

What is 20% of 50 and what would 10% equal

Answers

Answer:

20/100 x 50 is 10

10% would be 10/100 is fraction form

I want to help you on the first thing you said,

so always consider a percent as a fraction but there denominator is ALWAYS 100 (a way to remember that is that the word "cent" means 100). The word "of" means multiplication so that means your multiplying it with 50 and just do the multiplication.

I'm really hoping you understand!

which equation is true ?

(1.) 4/-9 = -4/9

(2.) 4/-9 = 2/-3

(3.) 4/-9 = 4/9

(4.) 4/-9 = 2/3

Answers

3.4/-9=4/9 this is the true equation

In the diagram, the length of Line segment Y Z is twice the length of Line segment A Z. Triangle X Y Z is shown. Angle X Y Z is a right angle. An altitude is drawn from point Y to point A on size Z X to form a right angle. Line segment Y A is an altitude of ΔXYZ. What is the length of Line segment Y A? 5 StartRoot 3 EndRoot units 10 StartRoot 3 EndRoot units 15 units 20 units

Answers

Answer:

A        5 StartRoot 3 EndRoot units

Step-by-step explanation:

Answer:

5√3 units

Step-by-step explanation:

edgeee

HELP PLEASE DUE IN 3 MINUTES

Answers

Answer:

I think it is 5.5

hopes this helps brainlesit

Step-by-step explanation:

Answer:

Step-by-step explanation:

add them all together and you get 50. divide 50 by 5 and you get 10.

What is the measure of arc DGF

Answers

Answer:

DGF=226

Step-by-step explanation:

Angle 113 is a inscribed angle since two it is on the exterior of the circle. We can find the central angle by multiply 2 by 113.

113×2=226

Since the central angle measure 226, that means the arc DGF measures 226 degrees.

DGF=113

find the perimeter of triangle whose sides are 5.2cm, 7.8 cm and 4cm.​

Answers

Answer:

17 cm

SE SUMAN TODOS LOS LADOS

Can someone help me with this question?

Answers

Answer:1/3

Step-by-step explanation:

gradient equals

[tex]\frac{Y2-Y1}{X2-X1}[/tex]

=[tex]\frac{5-3}{10-4}[/tex]

=[tex]\frac{2}{6}[/tex]

=[tex]\frac{1}{3}[/tex]

9. Use the graph of each polynomial function to find the factored form of the related polynomial.
Assume the polynomial has no constant factor.
A.
What are the zeros of this function? (2 points)
what is the factorization of the polynomial

Answers

Answer:

A) the zeros are; x = -2 and x = 4

B) y = (x + 2)(x - 4)

Step-by-step explanation:

A) The zeros are the values of x where the graph curve crosses the x-axis.

Looking at the graph, the curve crosses the x-axis at x = -2 and x = 4

Thus, the zeros are; x = -2 and x = 4

B) Factorization of the polynomial means that we transform the zeros into the polynomial.

Thus, we have; y = (x + 2)(x - 4)

So when y is zero, x = - 2 or 4 as earlier derived.

What is 91% of 180
Show all work and round answer to the nearest tenth.

Answers

this is a picture from a question in a math class last year :>

jesse bought 2 sheets of stamps. on each sheet there are 5 rows of stamps with 6 stamps in each row. how much did he buy.

Answers

Answer:

he bought 60 stamps

Step-by-step explanation:

6*5=30

30*2=60

The volume of the cylinder is 225π cm3. What is the height of the cylinder?
A. 6.25 cm
B. 25 cm
C. 37.5 cm
D. 75 cm

Answers

Answer:

25

Step-by-step explanation:

it is i promiseee

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