Kevin uses a coupon for 75% off one item. He only pays $3.00 for a train set. How much money was the train set originally?
Answer:
$12
Step-by-step explanation:
$3.00 is 25%
what about 100%
3.00×100=300÷25= 12.00
2. Lilly and Laura pooled their money to purchase
their brother, Liam, a video game for his birthday.
The video game cost a total of $45. If Laura was
only able to contribute 2/3 of what Lilly did, how
much did Laura put toward the present?
F. $18
G. $21
H. $24
J. $27
K. $30
(Retyped)
Laura put $18 toward the present. Therefore, the correct answer is F. $18. Let's use variables to represent the amounts that Lilly and Laura contributed.
Let L be the amount Lilly contributed and 2/3L be the amount Laura contributed.
According to the information given:
L + 2/3L = $45
To solve for L, combine the terms with L:
1L + 2/3L = $45
To combine the fractions, find a common denominator:
(3/3)L + 2/3L = $45
Now, the fractions have a common denominator:
(5/3)L = $45
To isolate L, divide both sides by 5/3:
L = $45 / (5/3)
To divide by a fraction, multiply by its reciprocal:
L = $45 * (3/5)
L = $9 * 3
L = $27
So, Lilly contributed $27.
Now, to find how much Laura contributed:
Laura's contribution = 2/3L = 2/3 * $27 = $18
To know more about Laura:
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0.8x − 11 = 0.3x + 41
Answer:
0.8x − 11 = 0.3x + 41
0.8x-0.3x=41+11
0.5x=52
x=52/0.5
x=104
Answer:
x = 104
Step-by-step explanation:
0.8x - 11 = 0.3x + 41
0.8x - 0.3x = 41 + 11 (collecting the variables on one side)
0.5x = 52
x = 52 / 0.5
x = 104
this is an urgent call for help plz help me im kinda lost on this
Answer:
Step-by-step explanation:
so go to the f g c and multiply my 6
Which of the following represents a biconditional statement
Answer:
B
Step-by-step explanation:
Find the probability of taking a vacation in July.
This is literally all i have to go with can someone help pls.
Answer:
1/2
Step-by-step explanation:
At the reunion, they have a hot dog eating contest. Michael ate 3 more hot dogs than half as many as Crystal. Eric ate twice as many hot dogs as Michael. Write an algebraic expression to represent how many they each ate. If Crystal ate 12 hot dogs, how many did they all three eat in total?
Answer: 39 hot dogs
M= 3 + half of C , E= 2 × M , C= 12
Step-by-step explanation:
M= 3 + (half of C=12÷2) 6= 9
E=2×9=18
total= 12 + 9 + 18= 39
Anyone know the answer?
Answer:
41
Step-by-step explanation:
The two shapes are a mirror of each other.
Answer:
41
Step-by-step explanation:
anything that is reflected does not change size so the length stays the same
Help, please...............
30: D
31: B? (so sorry if wrong)
32: A
33: C
34: A?
I hope this helped. I'm so sorry if it's incorrect!
Mr. Lee bought rock to landscape around his house. He bought seven ton of rock for $151.13. How much did the rock cost per ton?
$21.59
$144.13
$21.60
$20.95
Answer:
A. $21.59
Step-by-step explanation:
$151.13 ÷ 7 tons= $21.59 each per ton
Function? Captionless
Yes
No
Write the formula for finding rate of discount after discount amount and marked price are given.
Answer:
Discount % = (Discount/List Price) × 100
Step-by-step explanation:
To calculate the discount, you must have the list price (marked price) and the selling price of the product you are buying.
Example: If the list price of a book is $50, and $10 discount is offered on the book, then the discount percentage is calculated as follows.
Discount % = (Discount/List Price) × 100
List price = $50; discount = $10
Discount (%) = (10/50) × 100
= 100/5
= 20%
please help
Simplify 3 - (2- 8).
O -1
O 7
O -7
O 9
Answer:
9
Step-by-step explanation:
3-(2-8)
3-(-6)
3+6
9
Evaluate the expression 2A2 +3B-4C if A=-4, B= 20, and C=0
2A^2 +3B-4C
2(-4)^2+3(20)-4(0)
In short, 92 is the answer.
if p:q = 1/3:2 and p:r = 1/2:3/4 calculate the ratio p:q:r
Answer:
p:q=1/3:2=1:6=3:18
p:r=3/4:1/2=3:2
p:q:r=3:18:2
i hope its help to you ✌
Multiply.
-1/4 times (-2/5
Write your answer in simplest form.
Answer:
1/10
Step-by-step explanation:
[tex]-\frac{1}{4} * -\frac{2}{5}\\\\= \frac{2}{20}\\\\=\frac{1}{10}[/tex]
Feel free to mark this as brainliest! :D
PLEASE HELP!!
QUESTION 1
After the storm, the small tree in my neighbor's yard was leaning. To keep it from falling, we nailed a 6-ft strap into the ground 2 ft from the base of the tree. We measured 5 feet along the tree and attached the other end of the strap to the tree. What degree was the tree leaning? Round to the nearest degree. Enter a number
Pls help me with this question!!!
The equation 20x2=4kx−13kx2+2 where k is a constant, has no real roots. It can be shown that k satisfies the inequality 2k2+13k+20<0.
Find the set of possible values for k.
Answer:
16k with the little 2 by the k so like 16k2-4(2)(-5k)
Step-by-step explanation:
ANSWER IS -5/2<K<0.
The set of possible values for k is -4<k<-5/2.
The given equation 20x²=4kx-13kx²+2 and the inequality is 2k²+13k+20<0.
What are the roots?For a given quadratic equation ax² + bx + c = 0, the values of x that satisfy the equation are known as its roots. i.e., they are the values of the variable (x) which satisfies the equation. The roots of a quadratic function are the x-coordinates of the x-intercepts of the function.
The given equation has no real roots.
4kx-13kx²+2-20x²=0
⇒ 4kx-x²(13k+20)+2 = 0
If the discriminant of a quadratic function is less than zero, that function has no real roots.
Compare 4kx-x²(13k+20)+2=0 with ax² + bx + c = 0, we get a= - (13k+20), b=4k and c = 2.
So, b²-4ac<0
(4k)²-4(-(13k+20))(2)<0
⇒ 16k²+8(13k+20)<0
⇒ 8(2k²+13k+20)<0
⇒ 2k²+13k+20<0
Using splitting middle term method, we get
2k²+8k+5k+20<0
⇒ 2k(k+4)+5(k+4)<0
⇒ (k+4)(2k+5)<0
⇒ -4<k<-5/2
Therefore, the set of possible values for k is -4<k<-5/2.
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||BRAINLIEST!!||
10 points!
Answer:
YEP THAT IS quadratic formula
Step-by-step explanation:
4. A rectangle measures 20cm by 15cm If each dimension is increased by 2.5cm by what percentage is a) The perimeter of the rectangle increased b) The area of the rectangle is increased
Answer:
The area of the rectangle is increased by 393.75.
Step-by-step explanation:
Add 2.5 to each number then multiply the sums. Please note I am actually in 7th grade.
PLS help it’s due tomorrow I’ll give brainless
Consider the linear function f(x)=4x -5.
Find f(3), f(0), f(-2).
Answer: f(3)= 7, f(0)= -5, f(-2)= -13
Step-by-step explanation:
Substitute and plug in.
For f(3), we plug in 3 for x in the equation.
So, 4(3)-5, which is just 12-5, which is 7
We do the same for f(0),
4(0)-5, which is 0-5, which is -5
Once again for f(-2),
4(-2)-5, which is -8-5, which is -13
Hope this helps!
x/7 = -57
Simplify your answer as much as possible
50 points to who answer's
[tex] \frac{x}{7} = - 57 \\ x = - 57 \times 7 \\ x = - 399[/tex]
The answer is -399.
[tex]\sf \longmapsto \dfrac{1}{7} x = - 57[/tex]
Multiply both sides by 7[tex]\sf \longmapsto7* (\dfrac{1}{7} x)=(7)*(−57)[/tex]
[tex]\sf \longmapsto \: x=−399[/tex]
can you please help me
Step-by-step explanation:
5) angle 5 = 69°
than, angle 10 = 69° ( alternate interior angle )
6) angle 6 = 115° ( alternate interior angle )
7) angle 7 = 118° ( alternate interior angle )
8) angle 11 = angle 4 - 180
→ 72 - 180 = 108°
therefore, angle 11 = 108°
9) angle 14 = 114° - 180
→ angle 14 = 66°
10) angle 12 = 86° ( alternate interior angle)
hope this answer helps you dear...take care!
Answer:
5. 69 degrees
6. 115 degrees
7. 118 degrees
8. 108 degrees
9. 66 degrees
10. 86 degrees
Step-by-step explanation:
10+10+10+10-10-10-10-10-10-10-10-10-10-10-9
Answer:
-69
Step-by-step explanation:
40-100-9
Answer:
9
Step-by-step explanation:
{n|n > -8} draw in number line
Step-by-step explanation:
please mark me as brainlest
evaluate the expression shown below and write your answer as a fraction in simplest form. 9/4-11/6
Answer: 5/12
Step-by-step explanation:
9/4 - 11/6
=
9/4 + -11/6
=
27/12 + -22/12
=
27 + −22/12
=
5/12
please help i am super confused!!
Answer:
a) To find the other missing length we must be given an area and a length
We then divide the total area by the given length
so
6534/99 = 66 is the missing width
Name an angle vertical to EGH
Answer:
IGF
Step-by-step explanation:
They're vertical ig