Answer:
x = 10
Step-by-step explanation:
2(1/2(5x) - 15 = 10)
5x - 30 = 20
5x = 50
divide by 5
x = 10
Chelsea wants to determine the number of people in her school who read news reports on the Internet daily. She asks five people in her language arts class. Which improvements could Chelsea make to her sample to increase the validity of the results? Select three options. increase the sample size choose students from different grade levels choose every fourth student in all language arts classes decrease the sample size choose students whose answer to the survey question is predetermined
Answer:
- increase the sample size
- choose students from different grade levels
- choose every fourth student in all language arts classes
Your welcome :]
The three options are
increase the sample sizechoose students from different grade levelschoose every fourth student in all language arts classesThe following information should be considered:
For increasing the result validity, the sample size should be increased. The students should be selected from the distinct grade levels.Also every fourth student for all types of language should be selected.Learn more: https://brainly.com/question/10309631?referrer=searchResults
Drag each percent to match the situation. Each percent may be used only once.
Answer:
#1 is 80% #2 is 95% #3 is 33⅓% #4 is 15%
Step-by-step explanation:
divide the smaller # by the bigger number, giving you a decimal. move the decimal 2 times to the right and that is your percentage.
A birdwatcher recorded how many birds were in two different parks each day for four days. The data is shown in the table.
Day
1 | 2 | 3 | 4
Park A 10 12 14 16
Park B 2 4816
Move options to the blanks to compare how the bird population is growing at each park.
Each day, the number of birds in Park A grows by
Each day, the number of birds In Park B grows by
If this pattern continues after day 4. Park
will always have more birds.
an increasing amount
a decreasing amount
the same amount
А
B
Answer:
Step-by-step explanation:
what’s the answer?
Write a rule for the translation of AABC to AA'B'C'
Answer:
(x-1,y-2)
Step-by-step explanation:
3 There are 8 teams in the
recreational soccer league. Each
team is comprised of 9 fourth-
grade students and 5 fifth-grade
students. Which expression could
be used to find the total number of
students in the soccer league?
A. (8 + 9) * 5 =
B. (8 x 9) + 5 =
C. 8 + (9x5) =
D. 8 (9 + 5) =
Answer:
On each team there is the same number of teammates, the answer is D. 8 (9 + 5).
Step-by-step explanation:
If you add up the amount of teammates then multiply that by the number of teams.
Therefore, D. 8 (9 + 5) is the answer.
WILL MARK BRAINLIEST!! PLEASE HELP!!
Mr Wilkinson invests £3000 at a compound interest rate of 2.2% per annum.
He wants his investment to earn more than £800 interest.
Work out the least time, in years, that it will take
Answer: 12.1 years
Step-by-step explanation:
youd find 2.2% of 3000 which is 66 and then divide 800 by 66 to see how many years it would take to make 800 interest and you get 12.1 years. 90% sure on that answer btw
>) Find the slope of the line that passes through (1, 11) and (9, 2). )) Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answer:
The slope is [tex] - \frac{9}{8} [/tex].
Step-by-step explanation:
[tex]m = slope[/tex]
Remember: [tex]m = \frac{y_2 - y_1 }{x_2 - x_1} [/tex]
☆All you have to do is plug in.
[tex]m = \frac{2 - 11}{9 - 1} = \frac{ - 9}{ \: \: 8} = - \frac{9}{8} [/tex]
what percent of 18 is 24
SIDE NOTE:its not 75%
An art teacher has a total of 5/8 pound of clay.The teacher puts 1/32 pound of clay at each work station.How many total work station will the art teacher be able to set up
Answer: Total work stations = 20
Step-by-step explanation:
Total clay = [tex]\dfrac58[/tex] pound
Clay at each work station = [tex]\dfrac1{32}[/tex] pound
Total work stations = (Total clay ) ÷ (Clay at each work station )
[tex]=\dfrac58\div\dfrac{1}{32}\\\\=\dfrac58\times32\\\\= 5\times4\\\\= 20[/tex]
Hence, Total work stations = 20
Can someone tell me what’s at the slope is for this one ?
Answer:
to find the slope of any graph
use this equation
Step-by-step explanation:
[tex]m = \frac{y2 - y1}{x2 - x1} \\ \frac{8 - 0}{2 - 0} \\ m = 4[/tex]
look at pic and answer plz
Answer:
D.
Step-by-step explanation:
the total amount is $1200 per month
225+375= 600
1200/600= 1/2= 0.50=50%
There are 5 boys and 10 girls in the glee club. Which ratio represents the number of boys in the club to the total number of students in the club? One-third One-half Two-thirds StartFraction 3 Over 1 EndFraction
Answer:
1:3
Step-by-step explanation:
Given that,
Total no. of boys = 5
Total no. of girls = 10
We need to find the ratio of the number of boys in the club to the total number of students in the club.
Total no. of students = no. of girls + no. of boys
= 5 +10
= 15
Ratio,
[tex]R=\dfrac{5}{15}\\\\=\dfrac{1}{3}[/tex]
Hence, the required ratio is 1/3 or one third.
Answer:
1/3
Step-by-step explanation:
Simplify: 5d?(3d - 2)
A
8d8 + 3d2
B.
15d3 + 3d
C 15d3 - 10d2
D 8d3-10d?
write the ratio in simplest form 34 to 52
HELP PLS QUICK
Answer:
17 to 26
Step-by-step explanation:
ayo I need some more help lol sorry!!!
Answer:
B,C, and D.
Step-by-step explanation:
sorry it took forever to get a response
Isaac walks 6/10 of a mile of a mile in 1/5 of an hour. If Isaac’s walking rate remains constant, what is Isaacs walking rate in miles per hour?
Answer:
3 miles per hour.
Step-by-step explanation:
To get his walking rate in miles per hour, we multiply 1/5 by its reciprocal, 5/1. We also multiply 6/10 by 5/1. This gets us 30/10 of a mile in an hour. We can simplify 30/10 to 3. This means he walks at 3 miles per hour.
Pls answer these for me!!! I need it assap because I have to go to dance and when I come back it’s like 10!!! And that’s when I sleep:( and when I eat it’s 12
Answer:
area models
Step-by-step explanation:
an area modle is something to model area
Answer:
1. round
2. associative property of multiplication
3. commutative property of multiplication
4. mixed number
Question 8
Which graph does NOT represent a function?
Answer: The circle.
Step-by-step explanation: Vertical line test
Help me please, please make the answer simple and easy
Answer:
5(3x - 9)
3(5x - 45)
Step-by-step explanation:
If you simplify the expression "Andre" wrote, you would get 15x - 45 and just need two other expressions that equal 15x - 45. In this problem it's simple since only 3 and 5 can multiply to make 15 besides 1 and 15, which is used in the expression "Andre" wrote, meaning it couldn't be used.
36x^3 +27x^2=0 pls help me solve :/
Answer: 36x^3 +27x^2 = 9x^2\left(4x+3\right)
Step-by-step explanation: apply exponent rule rewrite factor out common term plz enjoy
Answer:
[tex]x = 0\; ,-\frac{3}{4}[/tex]
Step-by-step explanation:
[tex]36x^3 + 27x^2 = 0[/tex]
Take 9x² common from the expression on L.H.S.[tex]=> 9x^2(4x + 3) = 0[/tex]
Here, x will have 2 values :-
1) [tex]9x^2(4x + 3) = 0[/tex]
Divide both the sides by (4x + 3)[tex]=> \frac{9x^2(4x + 3)}{(4x+3)} = \frac{0}{4x+3}[/tex]
[tex]=> 9x^2 = 0[/tex]
Divide both the sides by 9x[tex]=> \frac{9x^2}{9x} = \frac{0}{9x}[/tex]
[tex]=> x = 0[/tex]
2) [tex]9x^2(4x + 3) = 0[/tex]
Divide both the sides by 9x²[tex]=> \frac{9x^2(4x + 3)}{9x^2} = \frac{0}{9x^2}[/tex]
[tex]=> 4x+3 = 0[/tex]
Substract both the sides from 3[tex]=> 4x+3 -3 = 0 - 3[/tex]
[tex]=> 4x=-3[/tex]
Divide both the sides by 4[tex]=> \frac{4x}{4} = \frac{-3}{4}[/tex]
[tex]=> x = -\frac{3}{4}[/tex]
Match each equation with the correct answer.
19 - 4
24 - 9
Answer:
half of 30
Step-by-step explanation:
19 - 4 = 15
24 - 9 = 15
please choose the correct answer due at 11:59
Answer:
B
Step-by-step explanation:
if you line up the months (x) with the money (y) evrything lines up correctly whe you look at the points on the graph
hope this helps <3
At Trace State Park in Mississippi, there is a 40-mile mountain bike trail. Tommy rode 1/2 of the trail on Saturday and 1/4 of the trail on Sunday. He estimates that he rode more than 22 miles over the two days. Is Tommy’s estimate reasonable? Justify your reasoning !
Answer: 17.5 out of 25
I hope this helped
Step-by-step explanation:
jenny goes to the shop she buys
. three cups for £1.24 each
.three saucers for 95p each
. a teapot for £6.18
jenny has £20 to spend she also wants to but some plates, which are £1.57 each.
what is the greatest number of plates jenny she can buy
Answer:
5
Step-by-step explanation:
1.24 times 3 = 3.72
.95 (the value of pence to a pound in decimal form) = 2.85
6.18 for the teapot
2.72+2.85+6.18=11.75
She now has £8.25 left (20-11.75).
8.25/1.57=the amount of plates she can buy: 5.25477707006, so 5 with some money left
The Richardson family is out to dinner at their favorite restaurant. The bill comes to $28.85. How much money should they leave for the bill and a 20% tip?
what is an irrational number between 6 an 8
Answer:
6.128054
Step-by-step explanation:
Can I pls get help ?
Answer:
Step-by-step explanation:
b is the answer
During their last game, the Miami Dolphins scored times for a total score of ͵Ͳ points. They scored points for each touchdown and ͵ points for each field goal. Write and solve the systems of equations to find the total touchdowns and field goals scored.
Answer:
The Miami Dolphins had 3 touchdowns and 3 field goals.
Step-by-step explanation:
It is given that During their last game, the Miami Dolphins scored 6 times, for a total score of 30 points. They scored 7 points for each touchdown and 3 points for each field goal.
We need to write and solve the system of equations to find the total touchdowns and field goals scored.
Let x represents the number of touchdowns.
Let y be the number of field goals.
It is given that the Miami Dolphins scored 6 times
[tex]x+y=6[/tex]
[tex]x=6-y[/tex]....(1)
They scored 7 points for each touchdown and 3 points for each field goal.
The total score is 30 points:
[tex]7x+3y=30[/tex] ...(2)
Put the value of x from equation (1) into equation (2).
[tex]7( 6-y)+3y=30[/tex]
[tex]42-7y+3y=30[/tex]
[tex]-4y=30-42[/tex]
[tex]-4y=-12[/tex]
[tex]y=3[/tex]
Put y = 3 in equation 1.
[tex]x=6-3[/tex]
[tex]x=3[/tex]
Hence, the Miami Dolphins had 3 touchdowns and 3 field goals.
A 4-ounce serving of yogurt has 8 grams of protein. How many grams of protein are in a 16-ounce serving container of yogurt? *
Answer:
16/4 = 4
4 * 8 = 32
32 grams in a 16 ounce serving
Answer:
32 grams of protein
Step-by-step explanation:
We know that 8 is double of 4, which means that if you have 16 ounces you are going to multiply by 2 to double it, which gives you 32.
Is this "N2 + 3H2 → 2NH3" balanced or no?