In a school, there are 880 students in
total. If there is 20% more boys than
girls, find the number of boys and girls in the school
Answer:
400 girls.
480 boys.
Step-by-step explanation:
If the number of girls is x then the number of boys is 1.2x, so we have:
x + 1.2x = 880
2.2x = 880
x = 880/2.2
= 400.
Girls = 400, boys = 1.2*400 = 480.
Adding up inches in a perimeter
Answer:
To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width).
Step-by-step explanation:
SOMEONE ANSWER THIS CORRECTLY READ IT CAREFULLY PLEASE!!!!!!! I NEED HELP WHAT DID SHE DO WRONG AND WRITE IT CORRECTLY PLEASE ANYONE ANSWER THIS CORRECTLY IM PRAYING SOMEONE HELP ME ASAPPPPPP!!!!!!!!!!!!!
6. Allison wants to start saving for college. She got $250 in birthday money
and plans to save $50 a week from babysitting. Which equation could be
used to determine how many weeks it will take for her to save $1000? *
What is the next fraction in this sequence? Simplify your answer.
5 /6,5/12, 5/24, 5/48...
Submit
Can you guys help me with the second one please :( .
I’ll mark you as a brainliest
Answer:
x=30° y=150°
Step-by-step explanation:
The inside angles of a triangle always add up to 180. So 65+85+x=180. x would equal 30. Next a line is always 180 degrees. So to two angles on the line must total to 180 degrees. We know x is 30 degrees, so y is the remaining angle. 30 + y = 180. y is 150.
Answer:
x=30° y=150°
Step-by-step explanation:
PLS HELP ASAP SEE SCREENSHOTS I NEED ANSWERS LIKE RN PLSS SRRYY:(
Answer:8= 2nd answer 9=3rd answer
Step-by-step explanation:
PLZ HELP WILL MAKR BRAINLIEST
Answer:
It will be 0.2
Step-by-step explanation:
Hope this Helped
the average screen time for middle school students is 240 minutes per day. In 2020 students went into virtual learning and the average screen time is 70 percent longer. What is the total percent of screen time this year?
Answer:408=screen time
Step-by-step explanation:240+168 70%=168
make sure to like with the heart
Answer:
I believe 408 minutes a day
Step-by-step explanation:
So, I have my own method which is to divide the whole (in this case, 240) by 10 and multiply by whatever percent you have to multiply by and you add it to the whole.
ex.
240/10 = 24
24x7=168
240+168= 408
to do with 100s like 73% then divide the whole by 100 :)
Please help fast. 15 points
Answer:
3rd one? ldk
Step-by-step explanation:
Answer:
-12x+4
Step-by-step explanation:
First, you have to rearrange terms.
-6(-2/3+2x)
-6(2x-2/3)
Now you have to distribute.
-6(2x-2/3)
-12x+4
and that's how you get your answer.
I hope this helps. :)
(You can also put it as 4-12x.)
2) The cost of gasoline is directly proportional to the number of gallons of gasoline purchased. Ms. Butcher paid $25.20 for 12 gallons of gas. If c represents the cost in dollars and grepresents the gallons of gas purchased, which equation best represents this relationship?
(a) c = 0.489
(b) c = 2.1g
(c) c = 25.20g
(d) c = 302.4g
Answer:
62/87,21
Write the rate of blue paint to yellow paint for each quart in simplest form.
The rates are not equal. So, the amount of yellow paint is not proportional to the amount of blue paint.
$16:(5
No; the rates are not equal.
62/87,21
Write the rate of ice tea mix to sugar for each quart in simplest form.
Each rate is equal to . So, the amount of sugar is proportional to the amount of ice tea mix.
$16:(5
Yes; each rate is equal to .
GASOLINE The cost of 13 gallons of gasoline is $41.47. Write an equation relating cost to the number of gallons of
gasoline. How much does 18.5 gallons of gasoline cost?
62/87,21
Find the constant of proportionality.
or 3.19
The cost is $3.19 times the number of gallons of gas, g. The equation is c = 3.19g.
To find the cost of 18.5 gallons of gas, substitute 18.5 for g.
18.5 gallons of gas cost $59.02.
$16:(5
c = 3.19g; $59.02
Determine whether the set of numbers in each table is proportional. Explain.
62/87,21
Write the rates of cans of concentrate to cans of water in simplest form
Each rate is equal to . So, the amount of cans of water is proportional to the amount of cans of concentrate.
$16:(5
Yes; each rate is equal to .
62/87,21
Write the rates of shaded squares to total squares in simplest form.
The rates are not equal. So, the number of total squares is not proportional to the number of shaded squares.
$16:(5
No; the rates are not equal.
62/87,21
Write the rates of junk e-mails to total e-mails in simplest form.
Each rate is equal to . So, the number of total e-mails is proportional to the number of junk e-mails.
$16:(5
Yes; each rate is equal to
62/87,21
Write the rates of weeks to days in simplest form.
Each rate is equal to . So, the number of days is proportional to the number of weeks.
$16:(5
Yes; each rate is equal to .
62/87,21
Write the rates of the heat index to air temperature.
The rates are not equal. So, the air temperature is not proportional to the heat index.
$16:(5
No; the rates are not equal.
62/87,21
Write the rates of jars to jelly beans in simplest form.
The rates are not equal. So, the number of jelly beans is not proportional to the number of jars.
$16:(5
No; the rates are not equal.
For Exercises 10 and 11, write and solve an equation.
FINANCIAL LITERACY A store is having a sale where all jeans are off the regular price. Write an equation
relating the sale price to the regular price. How much would a pair of $29 jeans cost on sale?
g
Cost
7g
6 7(6) = $42
7 7(7) = $49
8 7(8) = $56
9 7(9) = $63
10 7(10) = $70
$16:(5
yes
Complete each conversion. Round to the nearest hundredth, if necessary.
LQ§B cm
62/87,21
8VHLQ§FHQWLPHWHUV
$16:(5
10.16
/§ B gal
62/87,21
8VH/§JDO
$16:(5
1.32
OE§B kg
62/87,21
8VHOE§NJ
$16:(5
681
\G§ _ m
62/87,21
8VH\G§P
$16:(5
12.8
Express each rate as a unit rate. Round to the nearest tenth, if necessary.
140 miles on 6 gallons
62/87,21
The unit rate is 23.3 miles per gallon.
$16:(5
23.3 miles per gallon
19 yards in 2.5 minutes
62/87,21
The unit rate is 7.6 yards in 1 minute.
$16:(5
7.6 yards per minute
236.7 miles in 4.5 days
62/87,21
The unit rate is 52.6 miles per day.
$16:(5
52.6 miles per day
331.5 pages in 8.5 weeks
62/87,21
The unit rate is 39 pages per week.
$16:(5
39 pages per week
eSolutions Manual - Powered by Cognero Page 1
6-4 Proportional and Nonproportional Relationships
Determine whether the set of numbers in each table is proportional. Explain.
62/87,21
Write the rate of blue paint to yellow paint for each quart in simplest form.
The rates are not equal. So, the amount of yellow paint is not proportional to the amount of blue paint.
$16:(5
No; the rates are not equal.
62/87,21
Write the rate of ice tea mix to sugar for each quart in simplest form.
Each rate is equal to . So, the amount of sugar is proportional to the amount of ice tea mix.
$16:(5
Yes; each rate is equal to .
GASOLINE The cost of 13 gallons of gasoline is $41.47. Write an equation relating cost to the number of gallons of
gasoline. How much does 18.5 gallons of gasoline cost?
62/87,21
Find the constant of proportionality.
or 3.19
The cost is $3.19 times the number of gallons of gas, g. The equation is c = 3.19g.
To find the cost of 18.5 gallons of gas, substitute 18.5 for g.
18.5 gallons of gas cost $59.02.
Step-by-step explanation: sorry the answer is C
What inverse operation should be used to isolate the variable in the equation j ÷ 12 = 50?
Answer:
600
Step-by-step explanation:
50x12=600 you can check this by doing 600/12=50
Answer:
multiplication
Step-by-step explanation:
by multiplying the variable, j, by 12 it isolates the variable.
solve the equation below
-3 (x+7) =9
Answer:
x=-10
Step-by-step explanation:
-3(x+7)=9
-3x-21=9
add 21 to both sides of equation
simplify divide both sides by like terms
simplify again and you have your answer
Randy’s circular garden has a radius of 1.5 feet. He wants to enclose the garden with edging that costs $0.75 per foot. About how much will the edging cost?
Answer:
$2.25 is answer
perimeter of circular garden=2πr=2×π×1.5=3πfeet
1 foot=$0.75
3πfeet=3×$0.75=$2.25
NEEEEEEDD HELLLLPPP ASAPPPP
The yearbook team is designing the pages for school clubs so
that the layouts are all the same. The dimensions shown are ir
inches. Different team members think about the total area of
the page in different ways.
a. Paulo thinks of the area of the page as the product
of the total length and the total width.Complete Paulo's expression. (_____+3)*(4+_____)
Answer:
creo que sería 54 por actitud de :72-1 1?? por eso sería esta cosa esxtactamente espero que te allá ayudado
There is a line whose slope is 7 and whose y-intercept is -5. why is it's equation in slope-intercept form?
Answer:
y = 7x - 5
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 7 and c = - 5, then
y = 7x - 5 ← equation of line
PLZ HELP ME I DON'T KNOW
Answer:
44
Step-by-step explanation:
Answer:
44
Step-by-step explanation:
plug it in: 8(2)^2 +2(2) +8
do the math: 32 + 4 + 8
44
Jill flipped a coin 40 times. The coin landed as heads 28 times and tails 12 times. Based on her results, which of the following is true?
A. If she flips the coin 20 more times, it will land as heads 14 times.
B. The next time she flips the coin it will land as heads.
C. The theoretical probability of a coin landing as heads is greater than her results.
D.The experimental probability of the coin landing as heads was 7 to 10.
Answer:
There are many conclusions we can come to for this!
70% of the flips were heads, and 30% are tails
28/40 was heads, and 12/40 were tails
There were more heads than tails
There were 14 more heads than tails
:)
Step-by-step explanation:
Put Answer below....
John went to the store and bought 2 1/2 pounds of chicken breasts for $9.00. Select the cost of 1 pound of chicken breast?
Answer:
3.60
Step-by-step explanation:
Smart
2
Selecting a Colored Ball
An urn contains 3 red balls, 2 blue balls,
and 5 white balls. A ball is selected and
its
color noted. Then it is replaced. A
second ball is selected and its color
noted. Find the
probability of each of these.
Selecting 1 blue ball and then 1 white
ball
Find the slope and the y-intercept of the graph of y+1=4/3x.
What is the slope and the y-intercept?
Answer:
Slope = 4/3x; y-intercept = -1
Step-by-step explanation:
y + 1 = 4/3x
You have to write this equation in slope-intercept form (solve for y) if you want to find the slope and y-intercept
y + 1 = 4/3x
Subtract one from both sides
y + 1 - 1 = 4/3x - 1
y = 4/3x - 1
Now that we have the equation, you can now find the slope and y-intercept
y = mx + b; m is the slope and b is the y-intercept
So for y = 4/3x - 1, the slope is 4/3x and the y-intercept is -1
CAN SOMEONE PLS HELP ME ASAP!!!!
Find the volume of the new fish tank in the front office. The picture is below and thanks for your help
What is 1 3/7 plus 2/28 (simplify it)
Answer:
3/2 or 1.5
Step-by-step explanation:
please like if this helped
Answer:
1/2
Step-by-step explanation:
please help i will give brainliest
Answer:
[y]
-16
-12
0
12
16
Step-by-step explanation:
Put the x value in the equation to find your answer
Answer:
-16
-12
0
12
16
Step-by-step explanation:
y = 4(-4) = -16
y = 4(-3) = -12
y = 4(0) = 0
y = 4(3) = 12
y = 4(4) = 16
Tom, Jaime and LaDonna are playing hide-and-seek. Tom is hiding 15 yards south of Jaime, and LaDonna is hiding due west of Tom. If Jaime is 25 yards from LaDonna, how far apart are Tom and LaDonna.
Answer:
what are the answer choices
Step-by-step explanation:
Answer:
That's like 20 feet probably
Step-by-step explanation:
Okay so the distance between Tom and Jaime is the height of the triangle (South is directly down) (A=15 yards)
The distance between Tom and Ladonna is the base of the triangle (since Ladonna is west of Tom) (B is unknown)
The hypotenuse is the distance between Jaime and LaDonna (C=25 yards)
1. So 15^2 plus b^2 equals 25^2
2. 225 plus b^2 equals 625
3. Subtract 225 from both sides (b^2=400)
4. Find the square root of both sides.
5. B= 20 yards
a = (1/5)
b = (6/-3)
Work out 4a + b
Answer:
-1.2
Step-by-step explanation:
Which lines have a slope of -2?
Answer:
Lines C and D
Step-by-step explanation:
Both lines C and D are negative, and they both have the same slope. in order to find the slope you use rise over run; in this case, you go down 2 over left 1. C and D are the only lines that use that slope; therefore, they are the answers.
Pls help me with this math..... its kind of easy...
