In science class, Vicky did an experiment with an unknown solid. She started with 11 grams of the solid. During the experiment, the change in the mass of the solid was –4 grams. What was the final mass of the solid To solve the problem, Jamal subtracted 11–(–4) and came up with an answer of 15 grams. Is Jamal correct? Why or why not?

Answers

Answer 1

Step-by-step explanation:

In this following excerpt,

We know that jamal wants to know the final mass, for this to be solved. We have to add the initial mass (11) to the change in the mass i.e, [-4] for this to be qualified as the final mass we are supposed to add the 11 to the -4, i.e, (11+(-4).)

Answer:

All in all the statement to support this resolution is,

11 + (-4)

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Related Questions


Which point represents 27 on the graph?

O Point A
O Point C
O Point D
O Point E

Answers

Point c

It is just past the 2 mark

a baseball player got 13 hits in 50 times at bat. what percent of her times at bat did she get a hit

Answers

Answer:

26%

Step-by-step explanation:

Joe has to take two quizzes tomorrow. He has only enough time to study for one of them. The science quiz has 6 true or false questions. The english quiz has 4 multiple choice questions.

Answers

Answer:

C) English

Step-by-step explanation:

I don't really know how to explain it, so I'll show you instead.

For science, there are 6 of 6 correct answers with a 0.5 chance of answering correctly.

So,

0.5 x 0.5 x 0.5 x 0.5 x 0.5 x 0.5 = 0.016

For English, there are 4 of 4 correct answers with a 0.25 chance of answering correctly.

So,

0.25 x 0.25 x 0.25 x 0.25 = 0.004

They will have to study English (0.004) because it is lower than science (0.016).

The quiz he should study is; English because the probability of getting all questions correct is 0.004 which is lower than for science (0.016).

How to find Probability?

We are told that for science, there are 6 of 6 correct answers with a 0.5 chance of answering correctly.

Thus;

P(6) = 0.5⁶ = 0.016

We are told that for English, there are 4 of 4 correct answers with a 0.25 chance of answering correctly.

Thus; P(4) = 0.25⁴ = 0.004

Thus, we conclude that they will have to study English because the probability of getting all questions correct is 0.004 which is lower than for science (0.016).

Read more about Probability at; https://brainly.com/question/251701

#SPJ2

There are 3 times as many dogs as cats.
If the total number of dogs and cats is 16, how many dogs are there?

Answers

Answer:

there are 12 dogs.

Step-by-step explanation:

d= dogs              now plug in the 4 into your equation.

c= cats                  d=3(4)

d+c=16                   d=12

3c+c=16

4c=16                        SO THEREFORE THERE ARE 12 DOGS :)

c=4            

A .14kg baseball is dropped from rest. It has a momentum of .78kg x m/s just before it lands on the ground. For what amount of time was the ball in the air?

Answers

Answer

what r the options? a b c d?????

i wuld say it is 2.5

Step-by-step explanation:

Please help UwU
also hope your day is going GREAT
if correct i will give BRAINIEST

Answers

Answer:

b bro and u get a good day too

Answer:

Pretty sure its C  >:]

Explanation:

    It's the third option because if you put a piece of paper in the corner its a lil more than 90 degrees, so it wouldn't be B (there's a little more white space left). And it obviously wouldn't be A because that's self explanatory, lol.

    And you can't make a perfect square in the inside of the angle so that's another way to tell.

Extra:

I hope you have an amazing day too,, you seem very nice ^-^   good luck on your schoolwork today :]

What are the solutions of this quadratic?

Y=X^2 -2X

Answers

Answer:

this is my answer but it's on you if you think this answer is correct or wrong

please help me solve

Answers

Answer:

CD

Step-by-step explanation:

Answer:

3rd one

Step-by-step explanation:

change the following to a mixed number 48/10 simplify

Answers

I think it's ''4 4/5"..

If I say I’m sick on Tuesday at 8pm and they say I have 72 hours till I can work again and I work at 12 am what time and what day will I work on?

Answers

Answer:

Saturday

Step-by-step explanation:

I think

Which equation can be used to solve forz in the following diagram?
(6z- 15)°
Choose 1 answer.
z= (6z-15)
O z-(6z-15) = 90
O z+(6z- 15) = 90
4 of 7

Answers

Answer:

C.

THis is a right angle making it 90°

Therefore, 6x-15) + x = 90

Step-by-step explanation:

What is the y-intercept of the line?

Answers

It crosses the y axis at 4... it is 4 :)

Answer:

a. (0, 4)

General Formulas and Concepts:

Algebra I

The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.

Step-by-step explanation:

According to the graph, the line crosses the y-axis at y = 4. Therefore, our y-intercept is 4. Writing it in coordinate point would be (0, 4), as definition of the y-int.

Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars and cents that Ben has to pay? thanks!
A $1,664
B $10,880
C 12,000
D $1,920

Answers

D

Find 15% of 12,800,

[tex]\frac{15}{100}[/tex] ×[tex]\frac{12,800}{1}[/tex]

= 1,920

Identify the GCF of 36 and 24
6
12
2
8

Answers

Answer:

12...you already figured it out but alr

Step-by-step explanation:

5x-18+8x-10=180 solve for x

Answers

Answer:

x mean multiply xd

Step-by-step explanation:

Answer:

x=16

Step-by-step explanation:

P5(A)-2135-7-MATH 1. Out of 1,200 students served at lunch, 660 chose the hamburger meal. What percent of the students chose the hamburger meal?​

Answers

Answer: 55%


Explanation: 660/1200 = 0.55 or 11/20
0.55x100=55%

what is the solution of sqaure root -4x = 100

Answers

Answer:

I’m pretty sure it’s -2500

Step-by-step explanation:

Answer:

I think it would be x = -2500

Step-by-step explanation:

You square both sides to get rid of the square root and get -4x = 10000 then divide 10000 by -4 to get -2500

What is the vertex of the equation f(x)=-4(x+2)^2+1

Answers

Answer: (-2,1)

Step-by-step explanation:

Step-by-step explanation:

and then we will have access you to get the information you want to cry because you have to be around and he said why he was about the feudal of his heart is the only way he could get his life back to

Solve the problem.

A used car is for sale for $8,950. If Jenny will pay for the car over a 5-year period, what will be her monthly payment, to the nearest dollar?

$149/month
$3,729/month
$1,790/month
$60/month

Answers

Answer:

60 months = $8950

l month = ?

8950÷ 60

= $ 149 per month

plz help me on this final i beg of u!!!

Answers

Answer:

[tex] \frac{1}{2} [/tex]

Step-by-step explanation:

Its asking for how long did she watch for both videos.

[tex] \frac{3}{8} + \frac{1}{8} = \frac{4}{8} [/tex]

4/8 is half. so simplest form would be

[tex] \frac{1}{2} [/tex]

Answer:

1/2 minutes

Step-by-step explanation:

you add the two fractions together and because they have a common denominator you just add across.

1/8+3/8=4/8

now we simplify

the numerator and denominator can both be divided by 4.

4÷4=1

8÷4=2

1/2


If the radius is 21 cm and the angle at
center of circle is 140° then the length of
the arc is ?

Answers

Step-by-step explanation:

Given: Radius , r =21 cm

The angle at the center of the circle, n° =140°

Length of an arc =?

W.K.T Formula, Length of an arc = 2πr( n°÷360°) units

= 2*(22/7)*21*(140°/360°)

= 154/3

= 51.33cm

Answer:

2*(22/7)*21*(140°/360°)

= 154/3

= 51.33cm

Step-by-step explanation:

The enrollment at a university increased from 16,000 students to 20,000 students over a period of 5
years. What is the percent increase in enrollment?
difference
net/

Answers

Answer:

25%

Step-by-step explanation:

Initial no of students = 16,000

Final no of students = 20,000

We need to find the percent increase in enrollment.

The increase in no of students = 20,000 - 16,000

= 4000

Percentage = (increase/initial no of students) × 100

[tex]\%=\dfrac{4000}{16000}\times 100\\\\=25\%[/tex]

Hence, the percent increase is 25%.

What is 20x - y = -40 in
slope-intercept form?

Answers

Answer:

y=20x+40

Step-by-step explanation:

slope-intercept form is y=mx+b. In order to place the equation into such format, you first need to move the 20x to the right, meaning you subtract it from both sides. you are left with -y=-20x-40. Since y cannot be negative or have any coefficient other than positive 1, you divide both sides by -1. -20/-1=20,, -40/-1=40,,-1/-1=1. Therefore, you are left with y=20x+40

The figure shows a line graph and two shaded triangles to find the slope: (picture below)
Which statement about the slope of the line is true? SHOW YOUR WORK. (5 points)

a
The slope of the line is 3.

b
The slope of the line is fraction 1 over 3 .

c
The slope of the line is 1.

d
The slope of the line is 2.

Answers

Answer:

the answer is d because it is

Answer:

D is the slope

Step-by-step explanation:

what does 1+1 equal i need help

Answers

The answer is 2 duh but it also equals window :)

write 5/6 - 7/9 in simplest form

Answers

9514 1404 393

Answer:

  1/18

Step-by-step explanation:

18 is a suitable denominator for both fractions:

  5/6 = 15/18

  7/9 = 14/18

Then the difference is ...

  5/6 -7/9 = 15/18 -14/18 = (15 -14)/18 = 1/18

Which pair shows equivalent expressions?

Help quick please!

Answers

Answer:

i think A

Step-by-step explanation:

Three people take 90 minutes to water a garden. How many minutes would six people take?

Answers

Answer:

45

Step-by-step explanation:

it will take 45 minutes for 6 people to water a garden

Answer:GIVEN

Three people take 90 minutes to water a garden.

TO DETERMINE

The time (minutes) taken by six people to complete the work

EVALUATION

SOLVE USING RULES OF THREE

Now if the Number of people increases then the time take taken will decreases

Here the number of people and Time taken are in inverse proportion

So the time required

FINAL ANSWER

The required time = 45 minutes

Step-by-step explanation:

The cost of a raffle ticket is $2. There is also a one-time $5 fee to be part of the raffle. Which of the following expressions could be used to represent the total cost of being in the raffle and buying m tickets?

2 m + 5
10 m
5 m + 2
7 + m​

Answers

Answer:

2m+5

Step-by-step explanation:

the x value is 2 and the y intercept is 5

2m+5 I think I don’t know
Have a good day by the way

I need help again again​

Answers

Answer:

12.34

Step-by-step explanation:

Answer:

12.34

Step-by-step explanation:

since its out of 100, it would be 12.34

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