Answer:
Step-by-step explanation:
16 divided by $3.50 = 4.5
Answer:
0.286 pounds
Step-by-step explanation:
one pound=$3.50
x pounds=$1.00
then
1/3.5=0.286 pounds
check:
0.285 pounds per dollar x $3.50=1 pound
What is the area of the figure below??? Giving first answer brainliest as long as they have an explanation! Worth 10pts!!
28inch^2
Step-by-step solution:Rectangle:
[Length x Breadth]
5 + 3 = 8inch
8 x 2.5 = 20inch^2
Right Triangle:
[1/2 x Base x Height]
1/2 x 5 x 2 = 1/2 x 10
= 5inch^2
Left Triangle:
[1/2 x Base x Height]
1/2 x 3 x 2 = 1/2 x 6
= 3inch^2
20 + 5 + 3 = 28inch^2
How much of a radioactive kind of antimony will be left after 120 days if you start with 904 grams and the half-life is 60 days?
==========================================
Explanation:
1/2 = 0.5
Every 60 days, the amount cuts in half.
We start with 904 grams and after 60 days, we have 904*0.5 = 452 grams left over.
After another 60 days, we have 452*0.5 = 226 grams left over.
-------------
Alternative Method:
We can apply the half-life formula.
y = a*(0.5)^(x/H)
where,
y = final amount after x daysa = initial amountx = number of days that elapseH = number of days in a half-lifeIn this case,
a = 904 is the starting amountH = 60 is the number of days until another half-life occursWhen x = 120 days go by, we have....
y = a*(0.5)^(x/H)
y = 904*(0.5)^(x/60)
y = 904*(0.5)^(120/60)
y = 904*(0.5)^(2)
y = 904*(0.25)
y = 226 grams of antimony left over.
This method is preferred over the first method if you have x be some non-multiple of 60, or if x is fairly large.
The side length of an equilateral triangle is 6x - 12. Write an expression for the perimeter of the triangle in simplest form.
Answer:
18x - 36
Step-by-step explanation:
In an equilateral triangle the 3 sides are congruent, then
perimeter = 6x - 12 + 6x - 12 + 6x - 12 ← collect like terms
= 18x - 36
The required expression would be 18x - 36 for the perimeter of the triangle in simplest form.
What is the perimeter of a triangle?The perimeter of a triangle is defined as the addition of the lengths of the triangle's three sides.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operations is called the arithmetic operator.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
As we know in an equilateral triangle the 3 sides are congruent.
The perimeter of the triangle = 6x - 12 + 6x - 12 + 6x - 12
Combine the likewise terms and we get
The perimeter of the triangle = 18x - 36
Therefore, the required expression would be 18x - 36 for the perimeter of the triangle in simplest form.
Learn more about the perimeter of a triangle here:
brainly.com/question/24388271
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please help me!! will give brainliest, so pls dont ignore.
Answer: Domain- All real numbers, Range- y>4
Step-by-step explanation:
:)
0.0000078
convert to scientific notation
Answer:
7.8 x 10^-6 or 7.8E-6
Step-by-step explanation:
Answer: = 7.8 × 10-6
Step-by-step explanation: Hope this helps
9.
Brian says that ABCD is a right triangle. Is he correct? Explain.
B
17 m
13.5 m
21.7 m
Answer:
sorry but can u give me full question
Step-by-step explanation:
like picture
please answer this im going to fail Rewrite the fraction as a decimal.
\dfrac{13}{10}=
10
13
Step-by-step explanation:
it ia 76.92 is the percentage for 10/13
An exponential function contains the points: (2, 121) and (3,
133.1)
What is the exponential function that contains these points?
Find the x-intercept and y-intercept of the line.
- 8x+ 5y = 18
Write your answers as exact values. Do not write your answers as ordered pairs.
x-intercept:
Y-Intercept:
3
Write 180 as a product of prime factors in index form.
(3 Points)
Enter your answer
Answer:
2^2*3^2*5
Step-by-step explanation:
180
90 2
45 2
9 5
3 3
Pls halp I need it fast so please try your best to be fast
can yall help me plz im not good at this
Answer:
D
Step-by-step explanation:
Hope this helps :D Hav a great day :P
Solve for h.
h/10 + 5 = 25
so what’s h ??
Answer:
h=200
Step-by-step explanation:
h/10+5=25
h/10=20
h=200
h/10 + 5 = 25
Subtract 5 from each side to get h/10 alone.
h/10 + 5 - 5 = 25 - 5
h/10 = 20
Multiply both sides by 10 to get h alone.
h/10 • 10 = 20 • 10
h = 200
h = 200. I hope this helps!
fill in the blanks and read what it says
Which values are greater than -2
Answer:
what are the choices
Step-by-step explanation:
dilate the point (2,3) by a scale factor of 3 using (-1,0) as the center of dilation.
please help! if an explanation for the answer is provided i'll be sure to give brainliest!
Answer:
I think that it is 10,7
Step-by-step explanation:
I am just guessing so I am really sorry if it is wrong.
Carin has 2/3 of a bottle of paint. She uses 1/6 of a bottle to paint one model airplane. How many model airplanes can carin paint with 2/3 of a bottle of paint. Answer
Answer:
4
Step-by-step explanation:
Given that :
Total fraction of paint Carin has = 2/3 bottle
Fraction used to paint a model airplane = 1/6
Number of model. Airplanes 2/3 of a bottle could paint ;
Total fraction of paint / fraction used to paint a model airplane
(2/3) ÷ (1/6)
2/3 * 6/1
= 12 / 3
= 4 model airplanes
As an estimation we are told 5 miles is 8 km.
Convert 68 km to miles.
Answer:
42.5 miles
Step-by-step explanation:
68 : 8 = 8.5 km
8.5 x 5 = 42.5 miles
(axb)xc=
the associative property of multiplication
Which expression is equivalent to 1
5(15 + 10x - 5)?
2 + 2x
2 - 2x
-2 + 2x
-2 - 2x
Answer:
2x + 2
Step-by-step explanation:
LOLOL☝️answer is up there☝️LOLOL
help me plz you will get 10 points
Last year at a certain high school, there were 75 boys on the honor roll and 120 girls on the honor roll. This year, the number of boys on the honor roll increased by 24%, and the number of girls on the honor roll increased by 10%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).
Answer:
15.4
Step-by-step explanation:
im too tired to explain -_-
Find the area of the circle. Round your answer to the nearest hundredth.
2cm
Find the m ∠ Y in XWY. i need this fast guys.
Answer:
34
Step-by-step explanation:
Add w and x. Then take that answer and subtract it from 180.
w+x=146
180-146=34
ANSWER ASAP please!!!!!!!
Answer:
2.11
Step-by-step explanation:
3.5 x 2 + 9 = 16
10.4 - 1.4 x 2 = 7.6
16/7.6
= 40/19 or 2.11 to the nearest hundredth
Therefore the answer is 2.11
Answer:
2.11
Step-by-step explanation:
i took this myself
I need helppppppppppppp0p
Please help please please
Answer:
x= 11.04
................
write a ratio that is equivalent to 13:2 other than 13:2 itself
Please answer fast!!!
Answer:
it's the 2and answer because
Step-by-step explanation:
1,15 is not the same ratio of 2,24
Answer:
No, because 1:15 is not the same ratio as 2:24.
Step-by-step explanation:
2/24 reduces to 1/12 not 1/15 so these ratios are not the same.
Help Me Please I would appreciate it!!!!
9514 1404 393
Answer:
y +2 = (1/4)(x +1)
Step-by-step explanation:
The given line is in slope-intercept form:
y = mx + b
where the slope (m) is -4 and the y-intercept (b) is +13.
For the perpendicular line, we need a slope that is the opposite reciprocal, or ...
-1/m = -1/(-4) = 1/4
A suitable form for the desired equation is the point-slope form:
y -k = m(x -h) . . . . . . line with slope m through point (h, k)
For m=1/4 and (h, k) = (-1, -2), the equation of the line is ...
y +2 = (1/4)(x +1)