Answer:
I believe the answer is B 30
Step-by-step explanation:
Hope this helps!
I need the steps and solution
-10x + 5y = 10
x - 5y = -28
−10x+5y=10
x−5y=−28
Rewrite equations:
x−5y=−28
−10x+5y=10
Step: Solve:
x−5y=−28
x−5y+5y=−28+5y(Add 5y to both sides)
x=5y−28
Step: Substitute:
−10x+5y=10
−10(5y−28)+5y=10
−45y+280=10(Simplify both sides of the equation)
−45y+280+−280=10+−280(Add -280 to both sides)
−45y=−270
−45y
−45
=
−270
−45
(Divide both sides by -45)
y=6
Step: Substitute:
x=5y−28
x=(5)(6)−28
x=2(Simplify both sides of the equation)
Answer:
x=2 and y=6
1 and 1/2 times 2 and 1/2.
Answer:
3 3/4 or 3/75
Step-by-step explanation:
Answer:
3 3/4 or 3.75
Bob drove at an average speed of 15km/h correct to the nearest unit. He drove for 3 hours, correct to the nearest hour. What is the lower bound for the distance he drove?
Answer:
45km
Step-by-step explanation:
Given data
Average Speed= 15km/h
Time = 3 hours
Required
The distance traveled
Speed= distance/time
Distance= speed*time
Distance= 15*3
Distance= 45km
Hence the lower bound of the distance is 45km
Select the correct answer.
Mr. Svenson devised a training technique for goalkeepers at his soccer academy. He believes that if goalkeepers train using this technique, they
will improve their goal-saving rate in games. The goal-saving rate is the ratio of the number of saves made by a keeper to the number of
opposition shots that were on target.
To test how effective his new training technique is, Mr. Svenson splits the goalkeepers at the academy into two groups. One group trains using
traditional methods, and the other group trains using the new technique. Mr. Svenson compares the goal-saving rates of keepers from the two
groups in games played against the same level of competition. He finds that keepers who trained using his new technique had a higher
goal-saving rate than those who used traditional methods.
What does the goal-saving rate of keepers represent in this case?
A.
the response group
B.
the response variable
C. the control group
D. the explanatory variable
Answer:
Step-by-step explanation:Response Variable
Just took the test! Correct for Plato/Edmentum
Give the equation of the line below:
Answer:
slope = ⅔
y intercept = -2
so
[tex]f(x) = \frac{2}{3}x - 2[/tex]
whats the value of point A
Answer:
-3 i think
Step-by-step explanation:
Direction: Determine whether each ordered pairis a solution to the given inequality
Write YES if it is and NO if it is not.
An example is done for you
1.2x - 3y >5 NO a. (-1,0)
b. (2.1)
c. (6,2)
2x - 3y > 5
2(-1)-3(0) >5
2-05
-2 > 5
2. 3y + rs 12
c.(-1,-2)
b. (4,6)
a. (3.-2)
False
b. (7,5)
c. (3,-5)
a. (5.-3)
3. y < 3x - 15
Lesson Graphing a Linear Inequality in
Answer:
Step-by-step explanation:
1).b). 2x - 3y > 5
For (2, 1),
2(2) - 3(1) > 5
1 > 5
False.
So the answer is NO.
c). For (6, 2),
2(6) - 3(2) > 5
12 - 6 > 5
6 > 5
True.
Therefore, the answer is YES.
2). a). 3y + x ≤ 12
For (3, -2),
3(-2) + 3 ≤ 12
-6 + 3 ≤ 12
-3 ≤ 12
True.
Therefore, answer is YES.
b). For (4, 6),
3(6) + 4 ≤ 12
18 + 4 ≤ 12
22 ≤ 12
False.
Therefore, answer is NO.
c). For (-1, -2),
3(-2) + (-1) ≤ 12
-6 - 1 ≤ 12
-7 ≤ 12
True.
Therefore, answer is YES.
3). a). y < 3x - 15
For (5, -3),
-3 < 3(5) - 15
-3 < 0
True.
Therefore, answer is YES.
b). For (7, 5),
5 < 3(7) - 5
5 < 21 - 5
5 < 16
True.
Therefore, answer is YES.
c). For (3, -5),
-5 < 3(3) - 5
-5 < 9 - 5
-5 < 4
True.
Therefore, answer is YES.
Michael has more than 20 coins in his collection.
Which inequality shows the number of coins in Michael's collection?
A.x > 20
B.x + 20
C.x < 20
D.x = 20
Answer:
A. x > 20
Step-by-step explanation:
I got right
Sandra is 56.43 inches tall. On her fifth birthday, she was 43.27 inches tall. How much has she grown since her fifth birthday? 13.14 inches 13.16 inches 13.24 inches 13.60 inches
Answer:
13.16 inches
Step-by-step explanation:
56.43 - 43.27 = 13.16
The two plots compare the top 25 home run hitters in 2007 with those in 2008. Which choice is NOT true?
Answer:
The interquartile range for both 2007 and 2008 is the same.
Hope this helps, pls mark brainliest.
2. f(x)=Vx+2-1
Parent function
Four people equally shared 1/2 of a meat loaf. What fraction of the whole meat loaf did each person eat
Answer:
1/8
Step-by-step explanation:
Given that:
Fraction shared = 1/2
Number of people = 4
Fraction shared / Number of people
1/2 ÷ 4 = 1/2 * 1/4 = 1/8
Fraction of the whole meat each got = 1/8
12 Times 12 = 144 right?
Answer:
yes it is u are correct
Step-by-step explanation: plz mark brainliest
Which situation relates to the graph
A) an ice cream shop sells one scoops of ice cream for two dollars of each additional scoop cost one dollar
B) an ice cream shop sells two scoops of ice cream for two dollars in each additional scoop cost one dollar
C) an ice cream shop sells two scoops of ice cream for three dollars in each additional scoop cost one dollar
D) an ice cream shop sells to scoops ice cream for three dollars each additional scoop cost three dollars
PLEASE HELP ME
Answer:
C.
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
it is trust me
The mass of earth is 5.97 X 10^24 kilograms. The mass of the moon is 7.34 X 10^22 kilograms. What is the combined mass of earth and the moon? Express your answer In scientific notation.
PLEASE HELP
A car is traveling at 80 mph for 5 hrs, how long will it take to travel the same distance at 20 mph?
Answer:
20 hours.
Step-by-step explanation.
The total distance traveled was 400 miles. Then I divided 400 by 20. I got 20.
Help me please if it right I give brainliest I promise
Answer:
48,400 yd²
Step-by-step explanation:
(220+180)/2*260=52000
1/2(180)(60)=5400
So the total area is 52000+5400=57400
Basketball court=2400
Picnic area = 4200
Playground = 40x50 + 10x40=2400
2400+4200+2400=9000
57400-9000=48400
Answer: Hey I see someone gave you an answer already just wanted to say hi
Step-by-step explanation:
need help
Evan bought a car. He put $4500 down and pays $325 each month.
Write an expense equation for this situation and find how much he will have paid after 24 months.
Step-by-step explanation:
So I didnt really understand the beginning but what I did was $325x24=$7800 payed in 24 months if we are adding the $4500 it would be
$7800+$4500=$12300
Step-by-step explanation:
So I didnt really understand the beginning but what I did was $325x24=$7800 payed in 24 months if we are adding the $4500 it would be
$7800+$4500=$12300
Roberta has $50 in her purse. The money she has left over after buying two boxes of cookies is given by the equation 50 − x = 38, where x represents the cost of two boxes of cookies.
Answer:
The cookies cost $6 each, and $12 altogether.
Step-by-step explanation:
50-38=12, or x
The instructions for mixing cement call for 1 gallon of water to be used with 1 sack of cement. Will 2/7
of a partial sack (Sack A) require more or less water than 1/4 of a partial sack (Sack B)? In other words, which sack of cement is the largest, Sack A or Sack B?
Answer:
Sack A will require more water because it is larger.
A scale model of a house is 1 ft long. The actual house is 36 ft long. In the model, the door is 2 in. high. How many feet high is the actual door?
a
18 feet
b
12 feet
c
6 feet
d
4 feet
Answer:
C
Step-by-step explanation:
If this answer helped you then please consider liking this and marking it as brainliest :)
Answer:
C) 6 feet
Step-by-step explanation:
a scale of 1:36, 2" x 36 = 72" = 6 ft
Which one of these math problems is correct?
A. 50x3=1043
B. 54x6=324
C. 25x4=100
D. None of the above
Answer:
B and C are correct
Step-by-step explanation:
Use a calculator next time.
. What is the slope of the following line: x=-4 *
a.0
b. undefined
c.-4
d.1
Answer:
undefined
..................
what is the y intercept for
y=7x-3.5
Answer:
[tex]y = 7x - 3.5[/tex]
y-intercept of the given expression is (0,-3.5).pls answer this question
i’ll give brainliest if you give a correct answer.
Answer:
3.391
Step-by-step explanation:
If this answer helped you then please consider marking this as brainliest and like this respone :)
[tex] \\ [/tex]
Answer :[tex] \tt \dashrightarrow 8.47 - 5.079 = \dfrac{847}{100} - \dfrac{5079}{1000}[/tex]
[tex] \tt \dashrightarrow 8.47 - 5.079 = \dfrac{8470}{1000} - \dfrac{5079}{1000}[/tex]
[tex] \tt \dashrightarrow 8.47 - 5.079 = \dfrac{8470 - 5079}{1000}[/tex]
[tex] \tt \dashrightarrow 8.47 - 5.079 = \dfrac{3391}{1000}[/tex]
[tex] \tt \dashrightarrow 8.47 - 5.079 = 3.391[/tex]
[tex] \\ [/tex]
Hence, correct answer is 3.391.
4. Each number below was calculated by students completing math problems. Which student rounded appropriately?
O Student A calculated 8.4 people.
O Student B calculated 12.4 seconds.
O Student D calculated 53.58339 feet.
O Student C calculated 145.93477569 pounds.
Answer:
I think b....
Step-by-step explanation:
The first 1 i don’t think u can count 8.4 people
and the others all can be more simplified by rounding it to whatever
Evaluate 12 : (6 – 2) + 12
Answer: 16
Step-by-step explanation:
6−2+12
=4+12
=16
Answer:
The anwser is 16
Step-by-step explanation:
1 Simplify 6−2 to 4.
4+12
2 Simplify.
16
16
24. Which expression below is equivalent to x+x+x+x+y+y?
(1) 6x+6y
(3) x* + y2
(2) 4x+2y
(4) 6xy
Answer:
4x+2y
Step-by-step explanation:
I really need help can anyone help me
Answer:
7/10
Step-by-step explanation:
Answer: [tex]-\frac{7}{10}[/tex]
Step-by-step explanation:
Ordered pairs are written as (x,y)
The difference between the x coordinates is -10
The difference between the y coordinates is -7
Slope is written as [tex]\frac{rise}{run}[/tex]
So, the slope is [tex]-\frac{7}{10}[/tex]