Answer:
$3.40
Step-by-step explanation:
4x.40 is 1.60
2x.90 is 1.80
Then you take 1.80+1.60 to get $3.40 Hope this helps!
The half-life of radium is 1690 years. If 90 grams are present now, how much will be present in 400 years?
Answer:
76.38 g
Step-by-step explanation:
Below expresion can be used in calculating the remaining amount of radium
A(t)=A(0) (1/2)^(t/h)
Let A(t)=the remaining amount of radium
Let A(0)= amount of radium at the beginning= 90 grams
t= amount of time in years= 400 years
h=the half-life time= 1690 years
A(t)=A(0) (1/2)^(t/h)
If we substitute the values into the expresion we have
A(t) = 90 × (1/2)^(400/1690)
A(t)= 76.38 g
Taylor noticed that for the rectangle below she could multiply 2 times 3 to get its area of 6 square inches. How else could she find the area?
Answer:
Add 2+2+3+3
Step-by-step explanation:
Correct me if i'm wrong but that's my answer. I studied this 3 years ago.
Answer:
3 x 2 or 3 + 3
Given: Taylor noticed the rectangle she could multiply 2 times 3 to get its area of 6 square inches.
so, if we did 3 times 2 its 6 but if we did 3 + 3 it also 6 so therefore she could do 3 x 2 or 3 + 3 to find the area.
Step-by-step explanation:
Solve for x and y simultaneously
Pls help me
Step-by-step explanation:
Are the roots equal or unequal
Can someone please help me! ASAP
Answer:
∠ V = 130°
Step-by-step explanation:
In a parallelogram opposite angles are congruent and consecutive angles are supplementary.
∠ S and ∠ V are not opposite angles, they are consecutive, then
∠ S + ∠ V = 180°
50° + ∠ V = 180° ( subtract 50° from both sides )
∠ V = 130°
7/15=x/45 find the missing value
Answer:
the answer to your question is 21
solve the simultaneous equations 3 x - 5 y = 5 ,x + 10y= 4
Write the equation in standard form of the line that
passes through the point (4, -2) and has a slope of -1/2.
Answer:
x+2y=0
Step-by-step explanation:
y-y1=m(x-x1)
y-(-2)=-1/2(x-4)
y+2=-1/2x+4/2
y+2=-1/2x+2
y-(-1/2x)=2-2
y+1/2x=0
1/2x+y=0
2(1/2x+y)=2(0)
x+2y=0
what is the answer to
x+5=10
Please help me solve these exponents
PLEASE! PLEASE!!!!! ANSWER ASAP!!! YOU WILL GET BRAINLIEST!
Lab group A got a residual of 14.1005 grams of silver at the end of an experiment. Lab group B got a residual of 11.023 grams of silver at the end of a similar experiment. Using significant digits, find how much more silver lab group A got compared to lab group B.
A. 3.077 g
B. 3.0775 g
C. 3.078 g
D. 3.75 g
Answer:
C. 3.078
Step-by-step explanation:
14.1005 - 11.023 = 3.0775
Then you round the ten thousands place turning 75 into 8 equaling 3.078
Subtraction is a mathematical operation. The amount of silver lab group A got compared to lab group B is 3.0775 gm more.
What is subtraction?Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.
The amount of silver that group A got is 14.1005gm, while the amount of silver that group B got is 11.023 grams. Therefore, the amount of silver lab group A got compared to lab group B is,
14.1005 gm - 11.023 gm = 3.0775 gm
Hence, the amount of silver lab group A got compared to lab group B is 3.0775 gm more.
Learn more about Subtraction:
https://brainly.com/question/1927340
#SPJ2
Help me plz!!!! For number 17
Answer:
x=40
Step-by-step explanation:
x + 320 = 360
-320 -320
x = 40
Answer:
x=40
Step-by-step explanation:
So, since the figure has 4 sides, we know that the sum of the interior angles is 360. To check: (n-2)*180=(4-2)*180=28180=360.
That means x equals 360 minus the sum of the other three angles.
100+120+100=320
360-320=40
x=40 degrees
3 people invest in a business in the ratio 2:3:5.if the profit from the business is $450 000.how much does each person get?
Answer:
$90,000;$135,000;$225,000Step-by-step explanation:
In this question we have to find the share of each person
First we have to find the sum of all the ratios,
[tex]2 + 3 + 5 \\ = 10[/tex]
Then we have to represent their share as a fraction and then multiply it by the total value,
The share of first person:-
[tex] \frac{2}{10} \times 450000 \\ = 2 \times 45000 \\ = 90000[/tex]
So the first person share is $90,000
The share of second person:-
[tex] \frac{3}{10} \times 450000 \\ = 3 \times 45000 \\ = 135000[/tex]
So the second person share is $135,000
The share of third person:-
[tex] = 450000 - (135000 + 90000) \\ = 450000 - 225000 \\ = 225000[/tex]
So the third person share is $225,000
(This is your answer hope it helps :))
Write the polynomial 4x+5x^3+17x^5-7 in descending order.
Answer:
5x+4x^17+3x^5-7
Step-by-step explanation:
WHAT numbers do 12 and 10 go in evenly
Answer:
Step-by-step explanation:
All the factors of 12
So 1, 2, 3, 4, 6 and 12 are factors of 12.
Answer:
answer is 2×2×3×5= 4×15=60 im srry if you did not mean this but anyways have nice day
Step-by-step explanation:
12,10| 2
6,5| 2
3,5| 3
1,5| 5
1,1
100 POINTS WILL MARK BRAINLIEST
-109.3+x=184.9
Answer:
x = 294.2
Step-by-step explanation:
(-109.3+x)+109.3=184.9 + 109.3
184.9+109.3=294.2
Answer:
x=294.2
Step-by-step explanation:
to check your answer...
-109.3+294.2=184.9
hope this helps have a good rest of your night/day :) ❤
can I please get the brainliest I only have 1 pls
If x equals 8 what is the volume.
Answer:
I think it might be 9420 Im not sure though
Step-by-step explanation:
Hey There! Allow me to explain how to solve this (I will not say the answer bc I also don't know but here is how you can find it). As you see the shape is a Cyclinder & the formula for it is V=Bh or V=πr2h. You might wanna start with solving the problems (8x - 4) & (11x + 12) Use the order of PEMDAS (Parrenthesis, Exponets, Multiplication, Division, Addition, Subtraction.) to solve is so if solving (8x - 4) And if x = 8 than first begin with mutiliplying 8 x 8 (Because it says 8x and x = 8 which means we are multiplying) than subtract that with 4 (Which will be 64 - 4). Than for (11x + 12) you will wanna do 11 x 8 which is 88 added by 12 which that will be 100. Than use the formula (V=Bh or V=πr2h) And you should have you're answer! I hoped this help and sorry for not finding the answer but atleast I explained to you on how to solve it! <3
Three less than a number is 14 more than 2 times that number. What is the number?
Answer:
-20 = - 20
Step-by-step explanation:
Suppose the number is x
three less than a number means x - 3 which is equal to 14 more than twice a number means 2x +14.
So we can write
x - 3 = 2x +14 - - - - - A
subtract x from both sides
x - x - 3 = 2x - x +14
-3 = x +14
Subtract 14 from both sides
-3 - 14 = x +14 - 14
-17 = x
Or x = - 17
Now can verify our answer by putting the value of x in Eq A
-17 - 3 = 2 x (-17) +14
-20 = - 34 +14
-20 = - 20
I hope this helps. :)
+) Tickets to the spring festival are being sold online. The ticket price is $8 per person. The
expression 8t + 2 represents the total cost for t tickets, including a $2 service fee.
) What does the term 8t represent?
*) the price of the tickets
) the service fee
) the number of tickets
*) the total cost, including the service fee
Answer: What does the term 8t represent?
*) the price of the tickets
Step-by-step explanation:
5 Gretchen borrowed $50 from her parents for 3 months. They charged her 14% interest. How much does she need to pay her parents to pay off the loan?
Step-by-step explanation:
simple interest = principal×rate×time
S.I = $50×(14÷100)×3
S.I=$50×0.14×3
S.I=$21
Amount= principal + simple interest
Amount = $50+$21
Amount = $71
Someone plz help me giving brainliest
Answer:
no this is wrong its souposed to be moved twice so it will look like this:
706.56
Step-by-step explanation:
This week at the farmer's market the price of oranges per pound has decreased by 20% compared to last week. If the price of oranges this week is $3.89, which equation would represent the price of oranges per pound last week, p?
Answer:
$4.8625
Step-by-step explanation:
$3.89 + 20%
$3.89 = 80%
$3.89 × ¼ = $0.9725
$0.9725 × 5 = $4.8625
hi please help i’ll give brainliest please
Answer:
it should be all of them besides the last one because 3 is greater than 2
and 2 because it is equal
Step-by-step explanation:
Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation? Solve x2 = 12x – 15 by completing the square. Which is the solution set of the equation?
Answer: [tex]6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}[/tex]
Step-by-step explanation:
Given
Quadratic equation is
[tex]x^2-12x+15=0[/tex]
Solving by completing the square method
[tex]\Rightarrow x^2-2\cdot 6\cdot x+15=0\\\text{add and subtract 36}\\\Rightarrow x^2-2\cdot 6\cdot x+15+36-36=0\\\Rightarrow x^2-2\cdot 6\cdot x+36+(-36+15)=0\\\text{using}\ (a-b)^2=a^2+b^2-2ab\\\Rightarrow (x-6)^2-21=0\\\Rightarrow (x-6)^2=21\\\Rightarrow x-6=\pm \sqrt{21}\\\Rightarrow x=6\pm \sqrt{21}[/tex]
The solution set of the equation is [tex]6+\sqrt{21}\ \text{and}\ 6-\sqrt{21}[/tex]
Answer:
D on edge
Step-by-step explanation:
I NEED HELP!!! ASAP!
The image of point (2,1) under a rotation -540 degrees about the origin is:
a. (-1,2)
b. (-2,-1)
c. (1,2)
d. (2,1)
e. none of the above
can someone please help me!!
Answer:
the difference is the rate of change and the payment plan
Step-by-step explanation:
A square has a side length of 6 inches. It is enlarged and the new side length is 18 inches. What is the scale factor
Add
-10 + 5=
Add.
-19 + -6
Answer:
-30
hope i helped
Step-by-step explanation:
Can someone please help me ASAP
Answer:
Step-by-step explanation:
AB = 5
AC = 6
BC = √(5² + 6²) = √61 ≈ 7.8 units
find the value of given expression
[tex] \sqrt{310 \times 310} [/tex]
Answer:
√{310×310}=√310²=±310 is your answer
25% of
___= 4 what is the correct answer?
Answer:
Answer is 16%
Step-by-step explanation:
I hope it's helpful!
Answer:
16
Step-by-step explanation:
Do 4/ 1 over 4. This simplifies to 4*4 so your answer is 16. To check 4/16 = 0.25