Sally had some marbles. After buying 12 more marbles, she had 25 marbles. How many marbles did Sally have before she bought more?

Answers

Answer 1

Answer:

13

Step-by-step explanation:

25 - 12 = 13

Answer 2

Answer:

13

Step-by-step explanation:

12 + 13 = 25 or 25 -12 = 13


Related Questions

Line with a slope of -3 and passes through
point (-1,7)

Answers

Answer:

y=-3x+5.5

Step-by-step explanation:

The answer is Y=-3x+5.5 because we already know the slope which is -3. Now all you have to do is change the Y-Intercept. As you can tell the Y-Intercept is not a whole number. So you have to change it to a decimal to get the point that you want. You can put the last part of the equation as 5.5 or 5.55. It doesn't matter but 5.5 is more official. If you find any fault in my answer let me know. Thanks. Have a good day!

John’s friend told him that he could earn $25 for handing out flyers at a local concert. John wants to calculate the hourly rate. If he works a total of 2 hours, the equation 2x=25 can be used to determine his hourly rate. What would John’s hourly rate be, in dollars?

A
$12.50

B
$23

C
$27

D
$50

Answers

Answer:

D

Step-by-step explanation:

I need to know what mistakes he made (if any)

Answers

Step 2 y= 3(x2-2x+4-4-8 over 3

How much money would produce $70 as simple interest at 3.5% per
annum?

Answers

Answer:

$2000

Step-by-step explanation:

Simple Interest = $70

Rate = 3.5%

Time = 1

Principal = ?

Simple Interest = (Principal × Rate × Time)/100

Principal = (Simple Interest × 100)/(Rate × Time)

Principal = (70 × 100)/(3.5 × 1)

Principal = 7000/3.5

Principal = 14000/7

Principal = 2000

Can someone please help me with 1-9

Answers

Answer: 1. No because there are no numbers to solve it. 2. Yes, has numbers.  3.Yes, has numbers. 4.No because there are no numbers to solve it.  5. not sure  6.not sure  7. not sure  8.not sure  9. not sure

Step-by-step explanation:

which fractions are the least common denominator of 84
A. 3/4, 1/7 and 1/6
B. 2/3, 1/6 and 1/42
C. 2/27, 1/7 and 1/3
D. 2/3, 1/6 and 1/7

Answers

Answer:

C

Step-by-step explanation:

Which equation represents a line that passes through the two points in the
table?
A. y-3 = 2/3(x-3)
B. y+3 = 3/2(x+3)
C. y-3 = 3/2(x-2)
D. y+3 = 2/3(x+3)

Answers

(3,3) and (6,5)
find slope
5-3/6-3=2-3=m so the answer is either a or d

now for point slope (3,3) was used so the correct equation would be
y-3=2/3(x-3) which is a!!

Can someone help me please?

Answers

Answer: pull the upper right hand corner (of the smaller box) all the way to the upper right hand corner of the bigger box, then pull the upper left hand corner of the smaller box all the way over to the other side but leave two squares on the end, this gives you 18 boxes across the top which works since 2cm is three boxes. make sure each side of the square has 18 boxes and you’ll be good

Step-by-step explanation:

Marianna is painting a ramp for the school play in the shape of a right triangular prism. The ramp has dimensions as shown below. She will not paint the back or bottom surfaces of the ramp. What is the surface area of the ramp?

Just include the front and sides of the ramp.

A
4 square inches

B
300 square inches

C
2,905 square inches

D
3,672 square inches

Answers

Answer: The correct answer will be 4

Step-by-step explanation:

Can someone answer all of them? Tysm!​

Answers

In a river bank

you can put the answers from the end

1.) 1/12

2.) 2/13

3.) 8/41

4.) 1/4

5.) 11/74

6.) 2/35

7.) 15/58

8.) 5/18

9.) 1/7

10.) 1/13

Solve Systems of Equations Algebraically.
y=x-8
y=5x

Answers

Answer:

(- 2, - 10 )

Step-by-step explanation:

Given the 2 equations

y = x - 8 → (1)

y = 5x → (2)

Substitute y = 5x into (1)

5x = x - 8 ( subtract x from both sides )

4x = - 8 ( divide both sides by 4 )

x = - 2

Substitute x = - 2 into either of the 2 equations for y

Substituting into (1)

y = - 2 - 8 = - 10

solution is (- 2, - 10 )

help pls plssssss now

Answers

Answer:

i would say B but i dont know

Step-by-step explanation:

2. please help me i will give brainliest if ur right

Answers

Answer:

Is this high school math or middle school?.

Step-by-step explanation:

a²+b² = c²

8²+2²

↓    ↓

64+4

   ↓

square root 68 and it should give you 8.24 and then you round.

EXTREMELY IMPORTANT! HELP SOMEONE CORRECT!!!!

Answers

Answer: 891ft just did this

Step-by-step explanation:

Answer: 891ft I think.

Step-by-step explanation:

I don’t understand what to do

Answers

Answer:

2. 95

3. 85

4. 95

Step-by-step explanation:

Mark me brainliest? :)

Identify the volume the solid of revolution that is produced when
a rectangle with length 6 and width 3 is rotated around one of its
shorter sides.

Answers

Answer:

Step-by-step explanation:

The number of peopie that have "liked" Mindy's Candy Store web

site can be represented by y = 270(1.65), where t is the number of weeks after a

review in a national magazine. Interpret the parameters of the equation. Make a

prediction about the future number of likes on the web site.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that, the number of people who liked Mindy's website is given by :

270(1.65)^t ; t = number of weeks after a review

Interpreting the equation :

The equation represents an exponential growth function :

y = a(1 + r)^t

a = initial amount ; r = growth rate ; t = period

Comparing the function with the equation given ;

270 = a = number of people who liked the website before the review

1 + r = 1.65

r = 1.65 - 1

r = 0.65 ; 0.65 * 100% = 65%

Site grew at a rate of 65% per week after review

Ther predicted number of likes 2 weeks after the review :

y = 270(1.65)^2

y = 270 * 2.7225

y = 735.075

Hence, number of likes after 2 weeks = 735

Create 5 geometric sequences

Answers

Answer:

Below.

Step-by-step explanation:

The formula for a GS is:

a1, a1r,  a1 r^2, a1r^3 .....

Examples are:

1. First  term a1 =2 and common ratio r = 3, the first 4 terms are:

2,  2*3,  2*3^2,  2*3^3

= 2, 6, 18, 54

2. a1 = 1 , r = 0.5:

1, 0.5,  0.25,  0.125  .....

3. a1 = -4,  r = -2:-

-4,  8, -16,  32  ...

4.  a1 = 0.1,  r = -3:

0.1,  -0.3,  0.9, -2.7 .....

5. a1 = 2, r = 1/3:

2,  2/3,  2/9,  2/27 .....

Given that MN = 5, NO = 12, and MO = 13, find cos O.

Answers

Answer:

12/13

Step-by-step explanation:

Given that MN = 5, NO = 12, and MO = 13, find cos O.

Since the reference angle is P, hence;

MN is the opposite = 5

MO is the hypotenuse = 13 (longest side)

NO is the adjacent = 12

Cos O = adj/hyp

Substitute the given values

Cos O = 12/13

Hence the value of Cos O is 12/13

PLEASE HELP I’m bad at math

A.Find the greatest common factor GCF of 42 and 12
B.Use the GCF to factor 42 + 12

Please be quick if you can

Answers

Answer:

6

Step-by-step explanation:

The GCF of 42 and 12 is 6

Find the area of each trapezoid. Write your answer as an integer or a simplified radical

Answers

Answer: there is no picture

EH is a diameter is D. The measure of EF is (10x + 8) and the measure of GH is (11x). What's the value of X

Answers

Answer:

x = 5°

EF = 58°

GH = 55°

Step-by-step explanation:

From The diagram :

Recall ; Angle on a straight line = 180°

This means :

EF + FG + GH = 180

EF = (10x + 8)°

GH = (11x)°

FG = 67°

HENCE;

10x + 8 + 11x + 67 = 180

21x + 75° = 180°

21x = 180 - 75

21x = 105

x = 105 / 21

x = 5

EF = 10x + 8 = 50 + 8 = 58°

GH = 11x = 11 * 5 = 55°

solve for x round to your nearest tenth

Answers

Answer:

x ≈ 5.98

Steps:

tan(50.1°) = x/5

1.19.. = x/5

x = 5 × 1.19 ..

x = 5.97.. ≈ 5.98

200% of what number is 350?

Answers

Answer:

The answer is 175

if h(x)=3^x then h (-4) =

Answers

Answer:

1/81

Step-by-step explanation:

In h(x)=3^x, replace each instance of x with -4:

h(-4) = 3^(-4), or

                 1

h(-4) = ----------- = 1/81

              3^4

[tex]\huge{\mathbb{\tt { PROBLEM:}}}[/tex]

if h(x)=3^x then h (-4) =

[tex]\huge{\mathbb{\tt { ANSWER:}}}[/tex]

[tex] \frac{1}{81} [/tex]

[tex]\huge{\mathbb{\tt { EXPLANATION:}}}[/tex]

In h(x) = 3^x , you must replace each instance of with -4:

h(-4)=3^(-4)

[tex]h(4)= \frac{1}{3^4} = \frac{1}{81} [/tex]

#CarryOnLearning

#LetsEnjoyTheSummer

X x K i m 0 2 x X

please answer ASAP AFAP PLEASE PLEASE ANSWER RIGHT OR I'LL REPORT YOU TO BRAINLY . but on the other hand if you answer correctly I'll just give you brainliest, and go to your profile and thank you and give you a 5 star rating!

Answers

Answer:

The answer is B. 4.4 oz.

Step-by-step explanation:

What do we know? We have the 6-pack of 12-ounce bottles and they cost $2.99, we also know that the other bottle 67.6 ounces that also costs $2.99.

Forgot the money, we're just going to be looking at the ounces.

First, we take the 6-pack and multiply by 12 because we want the size as one, rather than seperate. 6 x 12 = 72

The question is asking how many more ounces are you getting if you purchase the 6-pack. In order to do this, we take the 72 ounces that we got and subtract that 67.6 ounces of the other drink. 72 - 67.6 = 4.4

The ounces saved are 4.4 ounces.

If the measure of arc KM is 112°, find the measure of arc LM

Answers

The answer is 124
All circles are equal to 380 degrees
You’re alr told that a part of the circle is equal to 112
So you subtract 360-112 which is 248
This means that the rest of the circle (without the zone that KM covers) is 248
As you can see both sides (ML and KL) are equal because they have congruency lines
So both sides have the exact same length
If what’s remaining is 248 and there are 2 equal sides you just have to divide
248/2 and that is 124

Using the information from the previous question, find the equation in standard form for the area of the fenced-in section in terms of the length of the field.
(area = length • width)

Answers

Answer:

y = x2 − 500x + 60,000

Step-by-step explanation:

area of the fenced-in section = length • width

y  = (x − 200)(x − 300)

= x² − 300x − 200x + 60,000

= x² − 500x + 60,000

Consider the radical equation c+22 = c + 2. Which statement is true about the solutions c = 3 and c =-6?
The solution c = 3 is an extraneous solution.
The solution c = -6 is an extraneous solution.
Both c = 3 and c = -6 are true solutions.
Neither are true solutions to the equation.

Answers

howdy!!

the answer for yr question is B!!!!

goodluck<3

Please help I need this quickly

Answers

Answer:

31 degrees

Step-by-step explanation:

1. since angle x and angle y are congruent, and segment xw and segment yw are congruent, you can assume that angle xzw and angle wzy are also congruent.

2. set angle xzw and angle wzy equal to each other

8x-1 = 5x+11

3. combine like terms

3x = 12

4. simplify to find the value of x

x = 4

5. plug x into the equation to find the degree of angle wzy

5(4)+11

20+11

=31 degrees

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