28 first graders and 12 other students attended a school assembly what percentage of the students at the assembly were first graders​

Answers

Answer 1

Answer:

70%

Step-by-step explanation:

Find the total students who attended a school assembly:

28 + 12 = 40

100% = 40 students

1% = 40 ÷ 100 = 0.40

28 ÷ 0.40 = 70

Answer 2

Answer:

70%

Step-by-step explanation:

28+12= 40

28/40= 0.7

0.7x100= 70


Related Questions

g(x) = 4x + 3; Find g(10)

Answers

Answer:

43

Step-by-step explanation:

g(x)=4x+3

plug in 10

g(10)= 4(10)+3

      = 40+3

      = 43

Answer:

Sorry I just needed points

Step-by-step explanation:

Michelle baby-sits the neighbors' children. She watches the Rogers' child for $5 per hour
and the Pringles' two children for $6.50 per hour. The Rogers needed her to work
15 hours this week, while the Pringles needed her services for 25 hours.

Answers

Answer:

What is the objective to answer the question? Is it how much they will get?

A scale drawing has a scale of 2 cm = 15 m. If the length of something on the drawing is 12 cm, what is the actual length?

Answers

Answer: 90

Step-by-step explanation:

Answer:

90m

Step-by-step explanation:

you have to cross multiply.

1) multiply (12 * 15) and multiply 2 * X)

2) you get 180 = 2x

3) to get X alone divide 180 by 2 and you will get 90meters

If the ratio of radii of two spheres is 4:7, find the ratio of their volumes. ​

Answers

Answer:

volume is equal to ratio

Answer:

This is your answer. If I'm right so,

Please mark me as brainliest. thanks!!!

why does the acute triangle go under polygon

Answers

an acute triangle has all angles measuring less than 90°. note: it is possible for an acute triangle to also be scalene, isosceles, or equilateral

hii please help i’ll give brainliest!!

Answers

Answer:

B

Step-by-step explanation:

Newton's third law states that for every force in nature there is an equal and opposite reaction.

1 1\4 - 3\8 what is the answer

Answers

Answer:  19/8

Step-by-step explanation:

11/4 can be view as 22/8 by multiply 2 to the denominator and numerator.

11/4 - 3/8

= 22/8 - 3/8

= 19/8

Mr Jack thinks that ⅘ is equivalent to 9/10 because 4+5=9 and 5+5=10 Explain what was incorrect about this. Please use the terms numerator and denominator in your explanation, below.

Answers

Answer:

See Explanation

Step-by-step explanation:

Given

[tex]\frac{4}{5} = \frac{9}{10}[/tex] --- Jack's thought

Because:

[tex]\frac{4+5}{5+5} = \frac{9}{10}[/tex]

Jack's thought is incorrect.

This is so because, to get an equivalent fraction; you don't add common terms to the numerator and the denominator but instead you multiply the numerator and the denominator by a common term.

Take for instance, the common term is: 2

The fraction becomes:

[tex]\frac{4 * 2}{5 * 2} = \frac{8}{10}[/tex]

In a race , Ram covers 5 km in 20 min. How much distance will he cover in 100 min ?
A.25 km
B.26 km
C.35 km
D.40 km

Answers

Answer:

25 km

Step-by-step explanation:

1 km in 4m

so

100/4 = 25

25km

please help (no links)

Answers

Answer:

EZ Excavation: y = 24.5x

Happy Hauling Service: y = 25x

Step-by-step explanation:

✔️Equation for EZ Excavation:

This can be written in slope-intercept form, y = kx

Where k is the unit rate/slope/constant of proportionality

y = cost

x = dirt

Thus,

k = y/x

Using any given pair of values from the table, say, (8, 196),

k = 196/8

k = 24.5

To write the equation, substitute k = 24.5 into y = kx

Thus:

y = 24.5x

✔️Equation for Happy Hauling Service:

This can be written in slope-intercept form, y = kx

Where k is the unit rate/slope/constant of proportionality

y = cost

x = dirt

Thus,

k = y/x

Using the coordinate of any point on the line, say (1, 25),

k = 25/1

k = 25

To write the equation, substitute k = 25 into y = kx

Thus:

y = 25x

For ΔJNM, the following facts are given: KL || MN
KL = 8 ft MN = 10 ft JL = 3.2 ft MK = 1.5 ft
Answer the following:
a) Is ΔJNM ~ ΔJLK? Support your answer with a postulate or theorem. b) Find the length of JN. Show all your work.
c) Find the length of JK. Show all your work.
d) What is the area ratio of ΔJNM to ΔJLK? Show all your work.

Answers

Answer:

I havn't gotten c and d yet, but:

a) They are similar because of the Angle Angle Theorem

b) JN=4ft

Marvin braude chocolate and vanilla cakes to school for his birthday 16 students vanilla cake and 64 students pick the chocolate cake what percentage of students picked a vanilla cake ​

Answers

Answer:

20% of students picked the vanilla cake.

Step-by-step explanation:

Total number of students: 16 + 64 = 80

Proportion that chose vanilla cake: 16/80 (simplify by dividing by 16) = 1/5 = 0.2 * 100 = 20%

help me plz: An employer is paying an employee a salary of $35,500 a year. The employer promised to increase his/her salary by 2,750 per year. What will be the employee's salary by year 8?​

Answers

Answer:

401(k) plan

Step-by-step explanation:

The employee earns $45/hour, with his employer paying 1.5 times the regular rate of pay for overtime hours. To date, he has earned $130,050 during the present year. He has requested that his employer withhold 8% of gross pay, which is to be contributed to a 401(k) plan. Taxable income for federal income tax withholding = $

write an expression equivalent to `b+b+b+b+b` that is a product of a coefficient and a variable.

Answers

Answer:

b^5

Step-by-step explanation:

The expression `b+b+b+b+b` is equivalent to 5b, which is a product of a coefficient and a variable.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

We have:

= b+b+b+b+b

Here, b is the variable after adding b five times we get:

= 5b

5 is the coefficient and b is a variable.

Thus, the expression `b+b+b+b+b` is equivalent to 5b, which is a product of a coefficient and a variable.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ2

what are the values of x and y?

Answers

Not sure about y but x is 35°! Hope this helps!
35 degree only
X is 35 because opposite angles are congruent
Y is because adjacent angles are congruent
HOPE THIS HELPS

4 km = m help please​

Answers

Answer:

4000m

Step-by-step explanation:

km to m --> multiply by 1000

4km * 1000 = 4000m

Circle A is defined as (x-5)^2+(y-6)^2=16, and circle B is defined as (x+3)+(y+2)^2=9. Which transformation of circle A shows that circle B is similar?

Answers

Answer: The answer is D

Step-by-step explanation:

Circle A has translated 2 units to the right and  8 units up to produce circle B ad circle B was reduced by a factor of 3/4

Transformation of coordinates

Given the equation of circles A and B defined as  (x-5)^2+(y-6)^2=16 and (x+3)+(y+2)^2=9

The scale factor of a dilation is given as:

k = √9/√16

k = 3/4

From the centers, we can see that circle A has translated 2 units to the right and 8 units up to produce circle B

Learn more on translation here: https://brainly.com/question/1046778

Find the slope of through the two points (3,4) and (-2,3).

Answers

Answer:

Slope is 1/5

Step-by-step explanation:

m = (y2 - y1)/ (x2 - x1)

m = (3-4)/(-2-3)

m = (-1)/(-5)

m = 1/5

Cuánto tiempo debe transcurrir para que un capital de $3,000.00 alcance un monto de $7,000.00, si la inversión se hizo con 5% de interés simple mensual?

Answers

Answer:

27 years approx

Step-by-step explanation:

Given data

Principal P= $ 3,000

Final amount A= $ 7000

Rate r= 5%

The simple interest expression is

A=P(1+rt)

substitute and solve for t

7000=3000(1+0.05t)

7000=3000+150r

7000-3000=150r

4000=150t

t= 4000/150

t= 26.66

Hence, the time is 27 years approx

Okay brain block alert what is 3 1/3 divided by 4 3/4

Answers

Answer:

31/3÷43/4

=31×4/43×3

=124/129

Answer:

40/57

Step-by-step explanation:

keep change flip.

change the mixed fractions to improper by multiplying the integer by the denominator and then add the numerator.

should give you an answer of 10/3 and 19/4

which when put into the fraction-division rule equals 40/57

What type of real numbers are these.

Answers

They are all integers

A hostel has food for 600
students for 50 days. After 15 days, if 180 students leave
the hostel, how long will the food last?​

Answers

Answer:

Answer is 35

Step-by-step explanation:

After 15 days, 600-180=420.

After 15 days, 600-180=420.Therefore, 600 : 50

After 15 days, 600-180=420.Therefore, 600 : 50 420 : X

Let X represent the number of days.

So now, X. × 50

X. × 50 ----. ----. Or Simply 50/ 600= 1/12

X. × 50 ----. ----. Or Simply 50/ 600= 1/12 420. 600.

No u cross multiply this fraction.

Which is, X × 12= 12X

X × 12= 12X 420 × 1 = 420

U have to let X stand alone.

12X = 420

12X = 420 ------. -------

12X = 420 ------. ------- 12. 12

So now u cancel out, 12 will cancel 12 so X will stand alone.

So now 12 will cancel 420 which means 12 will go into 420, 35times.

Therefore X = 35

Meaning the hostel will feed the rest of the students for 35days.

What Is the difference in kilowatt hours of monthly energy production between an average local wind speed of 15 miles

Answers

Answer:

The answer is "5"

Step-by-step explanation:

Please find the complete question in the attached file.

Given values:

[tex]15 \ miles /hour\\\\10\ miles /hour[/tex]

When we calculating the difference so, it is "5" because 15 -10=5

Please help guys I’m rlly confused on this question

Answers

Answer:

[tex]762^{8}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex] , then

[tex]762^{4}[/tex] × [tex]762^{4}[/tex]

= [tex]762^{(4+4)}[/tex]

= [tex]762^{8}[/tex]

I need help for question 17 in my big ideas math homework, it says "Use the figure to find the measures of the numbered angles."

Answers

Answer:

can you show a pic tell me in the comments

Step-by-step explanation:

Find the area of a circle with a radius of 16 cm. Please help!!

Answers

Answer:

area is 804.2477193

-23 - x - x + 16 - 2

Answers

Answer:

-2x - 9

Step-by-step explanation:

Answer:

−2x−9

I hope this helps

the point-slope for mhm of a line that has a slope of -2 and passes through point (5,-2) is shown below y+2=-2(x-5)

A. y=-2x+12
B. y=-2x+8
C. y=-2x-7
D. y=-2x-3

Answers

Answer:

y = -2x + 8 (B)

Step-by-step explanation:

Just expand y + 2 = -2(x-5)

y + 2 = -2x +10

y = -2x +8 (minus both sides by 2)

Will give brainiest for correct answer, but i am really behind in work right now

Answers

Answer:

here the ans

hope it is helpful to u.. mrk it as brainliest if is helps u

Answer:

so you can mark the other guy brainliest, he deserves it :)

Step-by-step explanation:

PLEASE HELP, URGENT!!!

John bought a crate of floor tiles $100. The crate had 5 boxes of floor tiles. Each box contained 40 floor tiles. Write an
equation to determine the cost per box, b.

Answers

For this equation, let b equal the cost per box.
b=$100/5
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