Find the percent change if 20 is decrease to 15.
20% decrease
15% decrease
25% decrease
33% decrease
Answer:
25
Step-by-step explanation:
i just know
HELP PLEASE
Leanna opens a savings account with an initial balance of $100. She then
deposits $50 each month. She currently has $450. How many months has she
been saving for?
Answer:
7
Step-by-step explanation:
450-100=350
350/50=7
7 months
Leanna has been saving for 7 months to have the balance of $450.
What is a linear equation?It is defined as the relation between two variables if we plot the graph of the linear equation we will get a straight line.
If in the linear equation one variable is present then the equation is known as linear equation in one variable.
Let's suppose the Leanna has been saving the money for 'x' months
It means total months = x
Intial balance = $100
Each month she deposit = $50
After x months she will have = $450 (with initial balance)
We can frame a linear equation in one variable such that:
50x = 450 - 100 (without initial balance)
50x = 350 (divide by 50 on both sides)
x = 7 months
Thus, Leanna has been saving for 7 months to have the balance of $450.
Learn more about the linear equation here:
brainly.com/question/11897796
a farmer sells his corn for $230 a metric ton with a small surcharge of $25. his neighbor sells her corn for $230 a metric ton and gives $15 rebate. write the cost model equations for both farmers and find the amount of corn that makes the costs equal.
Step-by-step explanation:
Step one:
The farmer sells his corn for $230 a metric ton
small surcharge = $25.
let the amount per metric ton be x
and let the total cost per x metric ton be y
the total cost function is
y=230x+25--------------1
The neighbor sells her corn for $230 a metric ton
he gives $15 rebate------A rebate is a partial refund of the cost of an item
let the amount per metric ton be x
and let the total cost per x metric ton be y
the total cost function is
y=230x-15----------------2
Step two:
Equating the two equation above
230x+25=230x-15
230x-230x=25+15
0=40
The result shows that based on the cost function of both farmer, there will never be an amount of corn that would make them have the same cost
Solve for r.
19 = 7 − –3r
Answer:
4
Step-by-step explanation:
19 = 7 + 3r
12 = 3r
4 = r
Answer:
r = 4
Step-by-step explanation:
19 = 7 - -3r
19 = 7 + 3r
Then you do Inverse Operations So you have to Subtract
19 - 7 = 12
12 = 3r
Then you do Inverse Operation So you have to Divide
12/3 = 4
So
19 = 7 - -3(4)
So Let's Make Sure That It Is Correct
19 = 7 - -3(4)
19 = 7 - -12
19 = 7 + 12
So 4 Is The Correct Answer
7(w+2)=-6(2w-1)+3w
solve for w.
9514 1404 393
Answer:
w = -1/2
Step-by-step explanation:
Eliminate parentheses, collect terms:
7w +14 = -12w +6 +3w . . . eliminate parentheses
7w +14 = -9w +6 . . . . . . . . collect terms
16w +14 = 6 . . . . . . . . . . . . add 9w
16w = -8 . . . . . . . . . . . . . . . subtract 14
w = -1/2 . . . . . . . divide by 16, reduce the fraction
__
Check
7(-1/2 +2) = -6(2(-1/2) -1) +3(-1/2)
7(3/2) = -6(-2) -3/2
21/2 = 12 -3/2 . . . . . true, answer checks OK
What is the slope of y= -x +7?
Answer:
-1
Step-by-step explanation:
Think of the slope as the number in front of x
Answer:
the slope is the value multiplied by x , so the slope is −1 . We know the y -intercept is b , or −7 , so it is at (0,−7) .
Step-by-step explanation:
Gabebuysanalarmclockpricedat$25.Ifthesalestaxis10%,howmuchtaxwillGabepay?
Hello!
$2.50Original price: $25
If sales tax is 10%, we can use multiplication to find the final price.
Convert 10% to a decimal:
10 / 100 = 0.1
Multiply 25 by 0.1 to solve:
25 × 0.1 = $2.5.
The regular price of a TV is $475. It's currently on sale for 20% off. What is the discount if you bought the TV during the sale?
Answer:
475 x 0.20 = $95
475 - 95 = $380
Step-by-step explanation:
so your answer is $380!
hope this helps! :)
Julio says "If you subtract 13 from my number and multipy the difference by -3 the result is -45" what is Julio's number
Answer:28
Step-by-step explanation:
Julio's number is x
(X-13)*-3=-45
Divide by -3
X-13=15
Add13 to both sides
x=28
The speaker that has a regular price of $90 is on sale for Cyber Monday Amazon with 30% off. What is the sale price with 6% tax?
Answer:
your answer would be $66.78 !
Step-by-step explanation:
hope this helps you! :)
PLZ HELP ITS DUE TONIGHT!!!!! 50 POINTS AND CROWN IF RIGHT NO TROLLING PLZ!!
I think it would be a right scalene triangle because it seems that none of the sides add up.
How do I solve this?
Answer:
It's B
please mark me as brainliest
Step-by-step explanation:
Recall the formula for the area of a trapezoid, A=1/2h(a+b) , where h is the height and a and b are the lengths of the parallel sides. Find the area of this trapezoid.
Answer:
The area of the trapezoid is 40 square inches
Step-by-step explanation:
Here, we want to find the area of the given trapezoid
Mathematically, we apply the formula for the area
In this case, a will be 10, b will be 6 and h will be 5
Substituting these values, we have that ;
A = 1/2(10 + 6)5
A = 1/2(16)(5)
A = 40 square inches
Answer:
40 is the correct answer
Step-by-step explanation:
Trust me:)
What is the answer to this geometry problem.
Answer:
8,2
Step-by-step explanation:
answer the problem
-1/2 x≤17=
Answer:
I think the answer is x≥−34
Step-by-step explanation:
Emily knows that the area of a rectangle is 54x9y8 square yards and that it's length 6x3y4 yards. If she divides the area by the length to find the width, then which expression represents the width of her rectangle in yards?
Answer:
W = 9x^6y^4 yards
Step-by-step explanation:
Area of a rectangle = length × width
Area = 54x^9y^8 square yards
Length = 6x³y⁴ yards
Width = ?
Area of a rectangle = length × width
54x^9y^8 = (6x³y⁴)W
Divide both sides by 6x³y⁴
W = 54x^9y^8 / 6x³y⁴
= 54/6x^9-3y^8-4
= 9x^6y^4
W = 9x^6y^4 yards
The expression 9x^6y^4 represents the width of her rectangle in yards
please answer fast!!! drag each figure to show if it is similar to the figure shown or why it is not similar
Answer:
The similar figures are shown in the attached drawing created with Microsoft Visio;
The similar figures are the rectangles in figures 2, and 5
Step-by-step explanation:
The given figure is a rectangle with dimensions of 3 yd. by 9 yd., therefore the length = 3 × The width of the rectangle
1) The 9 yd. by 18 yd. figure is a rectangle with the length = 2 × The width of the rectangle, therefore, the figure is not similar to the given rectangle
2) The 3 yd. by 1 yd. figure is a rectangle with the width = 3 × The length of the rectangle, therefore, the figure is similar to the given rectangle
3) The figure is a trapezium, while the given figure is a rectangle, therefore, they are not similar
4) The 6 yd. by 3 yd. figure is a rectangle with the width = 2 × The length of the rectangle, therefore, the figure is not similar to the given rectangle
5) The 6 yd. by 18 yd. figure is a rectangle with the length = 3 × The width of the rectangle, therefore, the figure is similar to the given rectangle
6) The 2 yd. by 8 yd. figure is a rectangle with the length = 4 × The width of the rectangle, therefore, the figure is not similar to the given rectangle
Which equation represents a line that has a slope of 2 and passes through the point (1, -3)
y
−
3
=
2
(
x
−
1
)
y−3=2(x−1)
y
=
2
x
−
5
y=2x−5
y
+
3
=
x
−
1
y+3=x−1
y
+
3
=
2
(
x
−
1
)
y+3=2(x−1)
Answer:
nn
Step-by-step explanation:
nnnnnn
PLEASE HELP I WILL MARK YOU BRAINLIEST
Answer:
6 IN OUNCES 170 IN GRAMS
Step-by-step explanation:
Answers:
6 ounces
170 grams
===============================================
Explanation:
Through either memorization or using a reference sheet, you should find that 1 ounce is approximately 28.35 grams.
Multiply that by 6 and we see that 6 ounces is about 6*28.35 = 170.1 grams, which rounds to 170 grams.
So overall, 6 ounces = 170 grams approximately.
Find the minimum value of
C=4x+3
Subject to the following constraints :
x ≥ 0
y ≥ 0
2x+3y ≥ 6
3x - 2y ≤ 9
x+5y ≤ 20
Answer:
C=4x+3y Constraints: x is greater than or equal to 0 2x + 3y is greater than or equal to 6 3x - 2y is less than or equal to 9 x + 5y is less than or equal to 20
Which inequality is true?
giving 14 points and marking brainly!!
Answer:
-2 3/4 < -1 1/2
Step-by-step explanation:
Positives are always greater than negatives (Example: 2 is greater than -2).
This eliminates the first and last inequalities.
Smaller negative numbers are always greater than larger negative numbers (Example: -2 is greater than -4).
This eliminates the third unequality.
For the second given inequality, convert the fractions to share the same denominator.
-2 3/4 < -1 2/4
They are both negative numbers.
We know smaller negative are always greater than larger negative numbers.
This inequality aligns with this statement.
Therefore, only the second inequlity is true.
Find the slope of a line from these two coordinates.
This is wrong.
It's supposed to be -4/15.
But try -4/5.
!!!!PLEASE I NEED HELP PLEASE ANSWER 1 AND 2! PLEASE ANSWER CORRECTLY ASAP!!!!
explain which lines are perpendicular
y=5
y=1/8x
x=2
y=8x-5
Evaluate the expression a+4 when a=7
Answer:
Answer 7+4
Step-by-step explanation:
Add the 7 into a spot
Answer:
11
Step-by-step explanation:
x=7
7+4=11
multiply quantity 2 plus the square root of negative 25 end quantity times quantity 4 minus the square root of negative 100 end quantity
Answer:
8 - 5i
Step-by-step explanation:
2 + √-25 x 4 - √-100
2 x 4 + √-25 - √-100
8 + 5i - 10i
8 - 5i
If John walks 1/2 mile each 1/4 hour, how many miles will john walk in one hour?
URGENT!!!!!
Answer:
2 miles
Step-by-step explanation:
The starting and finish lines for a yearly race in Columbia are 3 miles apart. How far apart are
the starting line and the finish line on a map with a scale of 2 inches : 1 mile?
inches
Simplify the expression:-1/2(-5/6 plus 1/3)
Answer:
1/4
Step-by-step explanation:
1/3= 2/6
-5/6+2/6=-3/6
-3/6=-1/2
-1/2(-1/2)=1/4
Please simplify 3➗5➗3➗7
Answer:
315
Step-by-step explanation:
