Noel’s brother is 3 times as old as Noel. The sum of their ages is less than 20. What’s the oldest age that Noel could be?
Identify:
Strategize:
Set up:
Solve:
Check
please help meeee!!!!
Answer:
The oldest Noel can be is 6
Step-by-step explanation:
6x3=18
18<20
Noel: 6
Noels' brother: 18
Select the function that represents the simple interest formula.
Answer:
C
Step-by-step explanation:
A P E X
The hanger image below represents a balanced equation.
a
9.1
4
Write an equation to represent the image.
Answer:
9.1 = a+4
Step-by-step explanation:
The right side has two different values, variable a, constant 4.
The left side has the constant 9.1.
If both sides are equal, then
a + 4 should equal 9.1
Answer:
9.1 = a+4
Step-by-step explanation:
help pls thanks huys
Answer:
12
Step-by-step explanation:
Let the unknown number be x.
8 = -4(1) + x
8 = -4 + x
x - 4 = 8
x = 8 + 4
x = 12
Answer:
[tex]a_{n}[/tex] = - 4n + 12
Step-by-step explanation:
The n th term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 8 and d = a₂ - a₁ = 4 - 8 = - 4 , then
[tex]a_{n}[/tex] = 8 - 4(n - 1) = 8 - 4n + 4 = - 4n + 12
Grant spent half of his weekly allowance. Then he earned $5 back by doing the dishes. What is his weekly allowance if he ended with $15?
Answer:
Grant's weekly allowance is $20.
Step-by-step explanation:
We know that Grant ended with $15. We can say that Grant's weekly allowance is x.
x/2 + 5 = 15
Now to solve:
x/2 + 5 - 5 = 15 - 5 (subtract 5 from both sides to isolate the x/2)
x/2 = 10
x/2 * 2 = 10 * 2 (multiply both sides by 2 to isolate the x)
x = 20
Grant's weekly allowance is $20.
Write the standard form of the line that has a slope - 3/4 intercept of -2Include your work in your final answer Type your answer in the box provided or use the upload option to submit your solution
a student earned a grade of 80% on a math test that had 20 problems how many problems on this test did the student answer correctly
Answer:
16
Step-by-step explanation:
To find 80% of 20, multiply .80 x 20
.80×20 = 16
This is how you multiply percentages--put the decimal point 2 places to the left, then multiply. In this case, you're looking at 80%, so move the decimal point two places to the left
80.0 becomes .80
Then multiply that by the number you're trying to find the percentage of
Mke y the subject of the formula.
w=x^2-2yz
Answer:
W = x^2 - 2yz / - w
0 = x^2 - 2yz - w / +2yz
2yz = x^2 - w // 2z
y = (x^2 -w ) / 2z
So correct answer is D
Pls be right will give brainliest
Answer:
The answer is D.
Step-by-step explanation:
Does anyone know how to do these? I don't understand them at all... :(
Answer:
For the first 2 questions, you need to find the square roots of those numbers. The second 2 question, you need to do those problems. Remember that absolute value is always positive. Then, plot those numbers on the coordinate plain.
Edit: plane*
Step-by-step explanation:
work out the value of x
will give brainliest
Answer:
x = 35
Step-by-step explanation:
we know that all triangles add up to 180
you first need to make an expression in which the angles equal 180
105 + 140 + x = 180
145 + x = 180
subtract 145 from both sides
x = 35
The sum of two angles is 138.6° one angle has a measure of 54° what is M The measure in degrees of the second angle
Answer:
84.6 degrees
Step-by-step explanation:
138.6 - 54 = 84.6
What is 60% of 125? Enter your answer in the box.
Answer:
75
explanation: because i looked it up
HELPPPP!!!
Use the diagram to answer the question
i really need help,please. also happy holidays!
Answer:
D
Step-by-step explanation:
Can you help me with explanation will give brainiest
Answer:
Area of rectangular garden = lxb = 10*5
= 50 sq. inch
when area increases by six times
new area = 50*6 = 300 sq inches
now,
let x be increasement in both length and width
(5+x) (10+x) = 300
50 + 5x + 10x + x² = 300
x² + 15x - 250 = 0
x²+ 25x-10x -250 = 0
x(x+25) - 10 (x+25) = 0
( x-10) (x+25) = 0
either x + 25 =0
x = -25 length can be negative
0r x-10 = 0
x = 10
so 10 inches is increase on both side
Step-by-step explanation:
When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?
pls solve the question attached
Answer:
The answer is 75.011
add the given values only make sure the decimal points are in the same line
What is the slope of the line represented by the equation y=- } - 5x?
0 -5
or win win
O 5
Hurry please!
Answer:
The slope of the line represented by y = -5x is "-5".
Step-by-step explanation:
y=mx+b
M=slope
b=Y-intecerpt
If m TUV = 64, mZTUW = 7x - 2,
and mZWUV = 24, find the value of x.
1
ud
V
X =
What does y=kx mean
Answer:
k is the slope of the graph.
Step-by-step explanation:
What is diffusion
Explain how blood clots
When was the first world war fought
Answer:
Blood clotting normally occurs when there is damage to a blood vessel. Platelets immediately begin to adhere to the cut edges of the vessel and release chemicals to attract even more platelets. A platelet plug is formed, and the external bleeding stops.The First World War fought in July 28, 1914.Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration.
Step-by-step explanation:
HELP ASAP
suppose the fee is 7.5% of the selling price. determine the total cost of the game(fee included) original cost of the game is $76.
show your work
Answer:
Original Cost: $76
Fee: 7.5%
Take 7.5% of 76 (76 times .075) and add the result to the original amount $76
So, 76 times .075= 5.7
5.7+76= 81.7
Step-by-step explanation:
simply 8/-4 dived by -3/9
Answer:
-6
Step-by-step explanation:
A snack mix recipe calls for 1 1/2 cups of dip and 1/3 cup of vegetables. Cole wants to make the same recipe using 1 cup of vegetables. How many cups of dip will cole need.
Answer:
4 1/2 cups of dipStep-by-step explanation:
Let required amount be x
Using the ratio to find x:
1 1/2 ÷ x = 1/3 ÷ 1x = 1 1/2 × 3x = 3/2×3 x = 9/2 x = 4 1/2 cupsMichael, who really likes to have a bag of chips with his lunch, is comparing chip prices at the store. He can buy a 10-pack of Double Cheese Crisps for $7.80 or a 15-pack of Cheddar Skins for $11.85. Which brand costs less per bag?
Answer:
10-pack of Double Cheese Crisps cost $7.80 cost less per bag
Step-by-step explanation:
Step one:
given
10-pack of Double Cheese Crisps cost $7.80
15-pack of Cheddar Skins cost $11.85
Required:
The unit cost per bag
Step two:
The unit cost of 10-pack of Double Cheese Crisps cost $7.80 is
7.8/10= $0.78
The unit cost of 15-pack of Cheddar Skins cost $11.85 is
11.85/15= $0.79
Answer:
double cheese crisps
Can someone please help?!
Can some help me fast!
Answer:
5x +2y =38
5(6) +2y = 38
30 +2y= 38
2y= 8
y= 4
(6, 4)
5(0) +2y =38
2y= 38
y= 19
(0,19)
5(-2) +2y= 38
-10 +2y =38
2y= 48
y=24
(-2,24)
Solve for x.
4(1 - x) + 2 x = -3(x + 1)
Is 6,7,8 a Pythagorean triples?
Answer: No
Step-by-step explanation: 6^2+7^2=85
8^2=64