Answer:
3.4
Step-by-step explanation:
5x=12x-28
28=12x-5x
28=8x
28÷8=3.4
11. Carlos put $100 in a savings account at the beginning of the year. At the end of each month, he added $15 to the account. Ana put $400 in her savings account at the beginning of the year. At the end of each month, she took $35 out of her account. Let x represent the number of months which have passed and y represent the amount in each savings account.
a. Write an equation to represent the amount in Carlos' savings account.
b. Write an equation to represent the amount in Ana's savings account.
c. Copy and complete the input-output tables through 8 months.s
d. When will Carlos and Ana have the same amount in their savings accounts? How much will they each have at this time?
Answer:
Step-by-step explanation:
8
Two groups of students were asked how far they lived from their school. The table shows the distances in miles:
Group A (distance in miles) 1 1.5 3.03 3.2 2.8 1.5 1.8 2.5 2.2
Group B (distance in miles) 2 2.5 3.23 1.3 1.8 2.4 3 1.5 1.8
Which statement best compares the mean distances for the two groups?
It is equal for Group A and Group B.
It is greater for Group B than Group A.
Its value for Group A is double the value for Group B.
Its value for Group B is double the value for Group A.
Answer:
B
Step-by-step explanation
add all numbers then divide by the number of numbers and you get the means
Answer:
B
Step-by-step explanation:
Joseph plots the speed of his car and time on a scatter plot. The equation for the line of best fit on his scatter plot is y = -15x + 60, where x is the time in hours and y is the speed in miles/hour. Which statement describes the situation correctly?
A.
The initial speed is 60 miles/hour, and his speed decreases by 15 miles/hour every hour.
B.
The initial speed is 60 miles/hour, and his speed increases by 15 miles/hour every hour.
C.
The initial speed is 0 miles/hour, and his speed increases by 15 miles/hour every hour.
D.
The initial speed is 5 miles/hour, and his speed increases by 30 miles/hour every hour.
Answer:
A
Step-by-step explanation:
His speed change is the slope or -15, decreases by 15 miles/hour
when he starts, his speed is 0*-15+60 = 60 miles/hour
Answer:
a
Step-by-step explanation:
A circle has a radius of 9 cm.
Work out the area of the circle.
Give your answer in terms of pi.
Radius = 9cm
So,
Area of circle = πr²
= π(9)²
= π × 81 cm²
= 81π cm²
Answer:
254.469 cm
Step-by-step explanation:
area = πr^2
π × 81 = 254.469005 rounded to 254.469 cm
in other terms, 81π cm^2
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
Just multiply
Step-by-step explanation:
a sweater is 15% off the regular price is $24 what is the price after the discount is taken off?
Answer:
$3.6
Step-by-step explanation:
15x24=360 360/100=3.6
A line includes the points (2, 10) and (1, 0). What is its equation in slope-intercept form?
Answer:
y=10x-10
Hope this helped <3
1. ) Explain the error in this simplification
2.) Show your work as you correct the error
Answer:
Given equation:
1 - 2/(x - 2) = (x + 1)/(x + 2)Correct solution:
(x - 2 - 2)/(x - 2) = (x + 1)/(x + 2) complete the fraction on the left(x - 4)(x + 2) = (x + 1)(x - 2) cross-multiplyx² + 2x - 4x - 8 = x² - 2x + x - 2 open parenthesis-2x - 8 = -x - 2 simplify-x = 6x = -6Errors
Step 1. not counting 1 as part of equation. It wasn't included into fraction.Step 1. not multiplying (x - 2) by 1.Step 4. - x + 2x = -2x is incorrect, it should be x(c^3b^1a^4)^4 + 3a^16b^4c^12
Answer: 4a16b4c12
Step-by-step explanation:
8(5g+5−2) Distributive Property to simplify the expression.
Answer:
= 40g -24
Step-by-step explanation:
you would multiply everything in the bracket by 8 to expand this
e.g.
(8x5g )+ (8x5 )+ (8 x -2)
= 40g + 40 - 16
now simplify by subtracting the like terms
= 40g -24
Find the equation of the line shown
Answer:
x+1
Step-by-step explanation:
Six less than the quotient of a number and 7 is 8.
Help
Answer:
X ÷ 7 - 6 = 8
Is your expression.
Is 5 a solution to -2 - x -15 = 27? Why or why not?
Ms. Hannah goes bowing with her friends. The bowing shoe rental for the group costs $22. Each game the group bows costs $7 25.
1.Write an equation for the total cost cof the outing related to the number of games played g.
2. How much will cost to bow 3 games?
What is the area of a circle with a diameter of 18.2 cm?
Use 3.14 for ∏ and round your final answer to the nearest hundredth.
The area is ___ square cm.
Answer: 260.16 cm
Step-by-step explanation:
Pls awnser I'm stuck
The points (2, 3) and (3, 6) fall on a particular line. What is its equation in slope-intercept
form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
y=3x-3
Step-by-step explanation:
insert the first point into y=mx+b
3=2m+b
----------------
Do it again with the other point
6=3m+b
-------------
Now put both equations in a system of equations
3=2m+b
6=3m+b
solve for m and b
m=3 and b=-3
y=3x-3
m=slope
b=y-intercept
Are these triangles congruent by ASA (Angle-Side-Angle)? *
yes
or
No
Answer:
Yes, they just flipped the second one around.
Step-by-step explanation:
Find the area of a rhombus, whose diagonals are 10cm and 5.2cm
step by step
what is the distance between (0.-3) and (9.6)
Answer:
d = 12.7 when rounded to the nearest tenths
Step-by-step explanation:
Distance formula:
d=√((x_2-x_1)²+(y_2-y_1)²)
Your ordered pairs (0, -3) and (9, 6)
d=√((9-0)²+(6-(-3))²)
d=√((9))²+(6+3))²)
d=√(81 + (9)²)
d = √162
d = 12.727...
d = 12.7 when rounded to the nearest tenths
PLEASE HELP MEEEEE!!!!!
Answer:
24/25 = 0.96
Step-by-step explanation:
there ya go XD
What measure of center should we use to describe the invasive crab problem in the mid-Atlantic region? Median, Mode or Mean
Answer:
i would go with Mean. Although I’m not entirely sure since the question seems pretty vague
Step-by-step explanation:
Answer:
Its the mean!
Step-by-step explanation:
I got it right on I-Ready!:))
32. A student finds the slope of the line between (4, 12) and (4, 17) . She writes 12-17 4-4 , What mistake did she make?
HELPPPPPP!!!!! ASAPPPPPPP!!!!!!!!
Which of the following expressions is correctly written in scientific notation?
Answer:
The third one
Step-by-step explanation:
2. R(1, 1), 5(1,7), Т(5,7), U(5, 1); k =
45
у
о
Help
On a horizontal number line, –43 is located to the left of –35.
Enter an inequality that represents this statement.
Answer:
-43 <-35
Step-by-step explanation:
hope it helps.................
10. Find the measurement of angle A
(look at the picture)
Answer:
m angle = 116
Step-by-step explanation:
HURRY PLEASEEEEE I RLLY NEED THISSS
Answer:
Option 2
Step-by-step explanation:
Given function:
x=8 and y=6x=5 and y=20Option 1: ×
Table one: y=8-6
if y is 6 then 8-6 can’t be 6 it is 2.
Option 2: √
Table one:
y=8-2
y would be 6 then this would be correct..
Table two:
y=4x
if y=20 then x would be 5 and if y is 16 then x=4.
Option 3:×
y=4x
this is wrong since table 2 is y=4x..
Option 4:×
Table one
y=x-4
if y is 6 and x is 8 then this is wrong..
Therefore, option 2 is correct..
The graph of the equation y = - 3/4X - 3 has what slope?
Answer: 3/4x
Step-by-step explanation:
y = mx + b
m = slope b = y - intercept
y= 3/4x -3
Please help. Will give Brainliest
Answer:
A dilation
Step-by-step explanation:
I did this in math
Hope I helped! Have a nice day! Plz mar as brainliest!!! :D
-XxDeathshotxX
Answer:
This is a nonrigid transformation called a dilation.
Step-by-step explanation:
A dilation is when a pre-image's dimensions are altered in proportion with the pre-image. The image has a proportional relationship with the pre-image. The shape can get larger or smaller in size.