Mathematics Middle School

Aldo solve the equation -3x - 8 = 16. He says the solution is -8.

Which reason justifies her solution?
A) Aldo says that to solve the equation you first divide by -3
and then add 8.
B) Aldo says that to solve the equation you first multiply by 8
and then add -3.
C) Aldo says that to solve the equation you first subtract 8 and
then divide by 2.
D) Aldo says that to solve the equation you first add 8 and then
divide by -3.

Answers

Answer 1
D. Because you have to get the x alone when adding 8 the. dividing by -3 to leave the x alone.

Related Questions

Allen weighs 44 kg. Miller weighs half as much as Allen, and James weighs 3 kg more than Miller.
What is their weight all together?
25
69
91
113

Answers

Answer:

91

Step-by-step explanation:

i think hope it helps

I pretty sure it’s 91 , let me know if it’s wrong

what is the answer to 11+22+33+44+55+66+77+88+99+101+111

Answers

Answer:

707

Step-by-step explanation:

cause im cool :D

I got the answer 707

PLEASE HELP PLEASE HELP PLEASEEEE

Answers

Answer:

27. C

28. D

Step-by-step explanation:

The average of all grades in his fencing class, including the upcoming one, (all grades summed up divided by the amount of grades) must be equal to 86 (percent), hence C is the right answer for 27.

Solving this equation gives:

[tex]\frac{75+88+62+100+x}{5} = 86\\325 + x = 86 \cdot 5\\x = 430 - 325 = 105[/tex]

So D is the right answer for 28.

27 is c And 28 is d.

Please help ASAP thank you

Answers

Answer:

R= 1 1/12 or 13/12 I think that's the simplest form

Answer:

4[tex]\frac{7}{12}[/tex]

Step-by-step explanation:

Give make the fractions improper first!

3[tex]\frac{1}{4}[/tex] -> [tex]\frac{13}{4}[/tex]

1[tex]\frac{1}{3}[/tex] -> [tex]\frac{4}{3}[/tex]

Now give them the same denominator, making it easy to solve.

[tex]\frac{13(3)}{4(3)}[/tex] -> [tex]\frac{39}{12}[/tex]

[tex]\frac{4(4)}{3(4)}[/tex] - >[tex]\frac{16}{12}[/tex]

now add!

[tex]\frac{55}{12}[/tex] - > 4[tex]\frac{7}{12}[/tex]

How many solutions does 5(x -3) + 6 = 5x - 9 have?


Will mark brainlest

Answers

Answer:

infinitely many solutions

Step-by-step explanation:

Since both sides equal, there are infinitely many solutions.

Infinitely Many Solutions

Infinitely many solutions is the correct answer

Help Please !! 10 point

Answers

8 for 6 is the answer I think

Answer:

80 cents

Step-by-step explanation:

What is the approximate rate of change in the total calories Leo burned between 40 and 70 minutes?

Answers

Answer:

The correct answer is 8.33

Step-by-step explanation:

help i’ll give brainliest lolz

Answers

25 x 25 = 625 I want brainlyest now

There are 15 violinists in the orchestra this year. Next year, two violinists will leave and some new violinists will join the orchestra. If v is the number of violinists who will join the orchestra, which expression(s) represent the number of violinists in the orchestra next year.

A 15−2+v15 minus 2 plus v

B 15−v15 minus v

C v−2v minus 2

D 13+v13 plus v

E v−15v minus 15

F v+13

Answers

Answer:

A and D

Step-by-step explanation:

There are already 15. Take away 2 in the next year and also add some (v) in the same year.

13 + v is the simplified version of the original expression (15 - 2 + v)

I hope this helps

Answer:

13+v=x

Step-by-step explanation:

Hope this helps

Surface Area 7th Grade Math

Answers

Answer:

108

Step-by-step explanation:

The answer to this is what the other person said

Can someone halp me with finding the area of this is square meters?

Answers

area of triangle is (base X height)/2
so it would be (2.4 X 0.5)/2
which equals 1.2/2 = 0.6

the answer is B

Answer:

B

Step-by-step explanation:

PLS HELP ASAP 30 POINTS

Answers

Answer:

A. 1/5  B. 60 times

Step-by-step explanation:

Hope it helps!


This table is proportional. What is the constant of proportionality?
k=

Answers

Answer:

huh

Step-by-step explanation:

Im pretty sure 3.5 hope this helps!

Serena spent $8.20 buying cupcake ingredients. At the school bake sale she charged $0.75 per cupcake. If she made a profit of $14.30, how many cupcakes did she sell?


What is the equation?
14.30 - 8.20 = 0.75c
8.20 + 0.75c = 14.30
0.75c - 8.20 = 14.30
14.30 - 0.75c = 8.20

Serena spent $8.20 buying cupcake ingredients. At the school bake sale, she charged $0.75 per cupcake. If she made a profit of $14.30, how many cupcakes did she sell?

8 cupcakes
32 cupcakes
5 cupcakes
30 cupcakes

Answers

is d- 30 cupcakes!
Is a- 30x7=7281

Complete the statement with a situation and a unit of your choice. Then answer the question
and draw a diagram.
water bottle
A small
holds 75% as much as a large
water battle
1.
If the small unit holds 36 units, how much does the large unit hold?
48 units
2.
Draw a diagram to illustrate your answer.

Answers

hhhhhhhhhhhhjjjjjjjjjjjjjjjjjjjjjjjjjjjj

Plss help me question below

Answers

Answer:

your right its 3/8

another one is 6/16

Step-by-step explanation:

eyesight

Answer:

Answer:6 over 16 and 9 over 24 would both represent AMD equivalent fraction

Step-by-step explanation:

a equivalent fraction would be two different fractions that equal the same thing for example 2 over 4 multiply both numbers by 2 and you would have 4 over 8 those would be equivalent fractions

PLEASE HELP ME WITH MY MATH ;-; if you help I will give you 5 stars, a thanks, and a brainliest

Answers

Answer:

a alternate interior

b supplementary

c there are no angles equal to anglePSQ

d SPQ

Step-by-step explanation:

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Answer:

B.) , ratio of 20:1C.) , There are 11 costumers per tower and 11000 costumers in total

Step-by-step explanation:

Please mark brainliest...

multiply each value of the C. by 1,000 to get the # of C.s divide the # of C.s / T.s this gives you C.s per T.Convert to ratio formatthere is on average 15 to 20 C.s per T.5250/273 = 14.0756250/325 = 19.2307250/377 = 19.2309250/273 = 19.230    6250  =  y  

             377        572

    2.  multiply both sides by 572

    3. 572 .  6250 = y

                   377

   4. divide known pair

572 x 19.230 = y

   5. solve for y

   6. y = 10999.56

   7. divide y value by 1000

   8. 10.99956

   9. round to the nearest whole #

   10. There are 11 costumers per tower and 11000 costumers in total  

What is the rate of change for the linear relationship modeled in the table? (4 points)

x y
−1 10
1 9
3 8
5 7
a
negative one over two

b
0

c
one over two

d
2

Answers

Almost sure the answer is A

Answer:

The answer is A -1/2

Step-by-step explanation:

HELPP PLEASE WILL GIVE BRAINLIEST

Answers

Answer:

6.5

Step-by-step explanation:

Answer:

7.2

Step-by-step explanation:

What is the surface area?
5 mm
6 mm
5 mm
7 mm
4 mm
its a triangle prisme thingy

Answers

Triangular prism calculator finds volume and surface area SA of a triangular prism with  km, m, cm, mm, mi, yd, ft, in  auto, 3, 4, 5, 6, 7, 8, 9 Share this Calculator & Page  A triangular prism is a geometric solid shape with a triangle as its base. Units: Units are shown for convenience but do not affect calculations.

please please do 8 and 9

Answers

Answer:

e

Step-by-step explanation:

A new hotel in town purchased 15 new flat screen televisions for $10,575.45 for their suites. How much did each television cost?
A. $7.53
B. $75.03
C. $705.03
D. $7,503.00

Answers

Answer:

C

Step-by-step explanation:

Divide 10,575.45 by 15.

The answer has to be c

BRAINLIEST INCLUDED!!! No explanation needed!! Elena walked 12 miles. Then she walked 1/4 of the distance. How far did she walk altogether? Select ALL that apply. Must answer more than one!!
A) 12+ 1/4
B) 12 (1/4)
C) 12 + 1/4(12)
D) 12 (1+1/4)
E) 12(3/4)
F) 12(5/4)

Answers

Answer:

it's just c...................

C She walked 12 then then 1/4 but you can’t just add it you have to multiply so multiply it by the 12 which means adding another 12 to the equation

Okay i know im dum but im 12 in the 4th grade and everyone thinks im 10 but i have a hard question. Does anyone know what 1.5+2.5 is?

Answers

Answer:4 I think could be wrong though

Step-by-step explanation:

Please do it all! <3 multiple pages please say the number question ex: .1 :answer

Answers

.........................................

probably idek but 620

describe friend ship in on sentence using a simile or a metaphor

Answers

Sally and red were stuck together like glue.
Simile: Friendship is like the warm sun on a summer day.

Metaphor: Friendship is a flower, blooming in the light.

Using the Chrome Extension, write an inequality that uses the greater than or equal to symbol or the less than or equal to symbol.

Answers

-1 < 4

i think that’s what the question is asking for
wjqiwokrklLzkdjsioakcospqkskdpaa

there is two part question is on picture
correct:brainliest

Answers

Answer:

the first one is independent

the second one is dependent

Step-by-step explanation:

Answer:

The number of dollar bills, d, is the independents variable.

The number of quarters, q, is the depenedent variable.

Step-by-step explanation:

The number of quarters depend on the amont of dollar bills, so the quarters are the depenent variable.  

PACK is a rectangle with a perimeter of 40 units. Find the measure of angle O to the nearest degree.

Answers

Answer:

It should be like 45 degrees not sure tho sorry

Step-by-step explanation:

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