9514 1404 393
Answer:
Jacob: 4his mother: 39Step-by-step explanation:
Let J and M represent the current ages of Jacob and his Mother.
currently:
M = 3 +9J
in 11 years:
M+11 = 5 +3(J+11)
Using the first equation to substitute for M in the second, we have ...
(3 +9J) +11 = 5 +3(J +11) . . . . . substitute for M
9J +14 = 3J +38 . . . . . . simplify
6J + 24 . . . . . . . . . . subtract 3J+14
J = 4 . . . . . . . . . . divide by 6
M = 3 +9(4) = 39
Jacob is 4 and his mother is 39.
find the value of 16% of 174
Answer:
16% of 174 = 27.84
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
A washing machine was marked 60% above its cost price . the shopkeeper allows a discount of 25% . calculate his gain%.
Answer:
20%
Step-by-step explanation:
I looked it up and that's what I got
You pay $10 to play the following game of chance. there is a bag containing 12 balls: three are red, five are green, and the rest are yellow. You are to draw one ball from the bag. You will win $15 if you draw a red ball, and you will win $10 if you draw a yellow ball. You win nothing for drawing a green ball. What is the expected value? Should you play?
Answer:
$ -2.08 expected to lose
Step-by-step explanation:
3 25.0% $15.00 $5.00 $1.25
5 41.7% $10.00 $- $-
4 33.3% $- $(10.00) $(3.33)
$(2.08) expected to lose
Find m<1
A. 70°
B. 65°
C. 50°
D. 40°
Question :- Find Angle 1 in diagram
Answer:- Exterior angle is equal to sum of two opposite interior Angle
so :- ATQ
[tex]140 = \angle1 + 90 \\ 140 - 90 = \angle1 \\ 50° = \angle1 \: \: ans[/tex]
so your answer is option (C) 50°
the sum of triple z and half of x
Answer:
3z+ 1/2 x
Step-by-step explanation:
This is an expression not an equation.
Translate this phrase into an algebraic expression.
the sum of 4 and twice a number is 12
Answer:
4+2x = 12
Step-by-step explanation:
sum means add an is means equal
4+2x = 12
Step-by-step explanation:
the sum of 4 and twice a number is 12:
Have a great day! I hope this helps!! :)Can you write a formula with variables a, b and c such that we cannot make a as the subject of the formula?
Answer:
I think the one below is correct
Step-by-step explanation:
3a^2 + 2ab + c^2 = 0
Due to employee safety negligence at a nuclear waste facility, 2000 tons of a radioactive element is spilled into the nearby pond. The half-life of the radioactive element is 36 days. In order to be declared safe for swimming, based on its size and the amount of water, there must be less than 100 tons of the material found in the pond. How long, to the nearest day, until it is safe to swim again?
How long, to the nearest day, until it is safe to swim again will be 156 days
Let x represent number of day until it is safe to swim again
First step
=2000 *1/2^x
100=2000 *0.5^x
0.05=0.5^x
Second step
Log 0.05=xLog 0.5
Log 0.05/L0g 0.5=x
x=36 days* Log 0.05/L0g 0.5
x=36 days*43.22
x=156 days
Inconclusion How long, to the nearest day, until it is safe to swim again will be 156 days
Learn more about radioactive element here:
https://brainly.com/question/13812761
answer TO GET BRAINLY!!!
[tex]\huge\mathsf\green{ANSWER}:—[/tex]
[tex]option \: c \: \sqrt{4} \: is \: the \: correct \: option[/tex]
Explanation :-[tex] \sqrt{4} = \sqrt{2 \times 2} = 2[/tex]
But irrational numbers are the numbers that are not rational numbers but 2 is a rational number that's why option c is correct .
plz mark me as brainliest answer4 glue sticks cost $7.76.
Which equation would help determine the cost of 13 glue sticks?
Answer:
price = 7.76/4 * 13
Step-by-step explanation:
Divide $7.76 by 4 to find the price of one glue stick.
Then multiply that by 13.
price = 7.76/4 * 13
If p(x) = x^2-6x+5, find p(4)
Answer:
-3
Step-by-step explanation:
p(x) = x^2-6x+5
Let x= 4
p(4) = 4^2-6(4)+5
Exponents first
= 16 -6(4) +5
Multiply
= 16 -24 +5
Add and subtract
= -8+5
= -3
Please help explanation if possible
Answer:
2-point shots: 31
3-point shots: 6
Step-by-step explanation:
In order to solve this system of equations, we can use the method of elimination. We can start by multiplying the equation x + y = 37 by 2 in order to get the x terms to cancel out in the next step(They can do that because we are making them the same value, 2x). So, we get:
2(x + y) = 2(37)
2x + 2y = 74
Now, we can subtract the equation 2x + 2y = 74 from the equation 2x + 3y = 80 in order to make a one-variable equation:
2x + 3y = 80
-(2x + 2y) = -(74)
y = 6
We can plug in the value of y in one of the equations to find x:
x + (6) = 37
x = 31
Since x stands for the amount of 2-point shots and y for the 3-point shots, we can say:
2-point shots: 31
3-point shots: 6
Answer:
31 and 6
Step-by-step explanation:
The 2 equations modelling the situation are
x + y = 37 → (1)
2x + 3y = 80 → (2)
Multiplying (1) by - 2 and adding the result to (2) will eliminate x
- 2x - 2y = - 74 → (3)
Add (2) and (3) term by term to eliminate x
0 + y = 6
y = 6
Substitute y = 6 into (1) and solve for x
x + 6 = 37 ( subtract 6 from both sides )
x = 31
Then 2- point shots = 31 , 3- point shots = 6
10
6
What is the length of the missing side?
Which expression can be used to model the phrase “the sum of three and a number”?
Answer:
3+x
Step-by-step explanation:
lol im doing this on edge too
hope it helps
Which is an Irrational Number?
A. 11.23453
B. -22
C. 2 2/3
D. 225 pi
Solve the equation for all values of x.
-x(x – 8)(x² + 25) = 0
From deltamath.com
Answer:
x=0 , x=8 , x = ±5i
Step-by-step explanation:
-x(x – 8)(x² + 25) = 0
Using the zero product property
-x =0 x-8 =0 x^2+25 =0
x =0 x= 8 x^2 = -25
x=0 x= 8 sqrt(x^2) = sqrt(-25)
x = ±5i
What is the volume of this figure?
Answer:
Volume = 480 cm³
Step-by-step explanation:
Volume = lwh
*Split the shape into 3 rectangles.
Rectangle 1: 4 x 4 x 8 = 128
Rectangle 2: 14 x 4 x 4 = 224
Rectangle 3: 4 x 4 x 8 = 128
Total: 128 + 224 + 128 = 480 cm³
Answer:
480
Step-by-step explanation:
just took the quiz
Helpp mee plss in this one
WILL GIVE BRAINLIEST
How many integers n between 1 and 100 inclusive are there, such that n^2 + n is divisible by 99
Answer:
It is 121
Step-by-step explanation:
The point (-3,-1) is the midpoint of (x,y) and (5,4). Find the point (x,y).
Answer:
(-11, -6)
Step-by-step explanation:
Find the distance between the midpoint, (-3, -1) and (5, 4). This can be calculated by finding the difference between the x coordinates and y coordinates.
-3 - 5 = -8 (distance between x coordinates)
-1 - 4 = -5 (distance between y coordinates)
Find the point (x, y) by subtracting 8 from the midpoint's x value, and then subtracting 5 from the midpoint's y value.
-3 - 8 = -11
-1 - 5 = -6
So, the point (x, y) is (-11, -6)
ILL MARL BRAINIEST IF YOU DO THIS CORRECTLY!!!
Drag each tile to the correct box.
Order the expressions from least value to greatest value.
Answer:
okie dokie 5557/57890/6678/2559
Somebody that knows the answer please help ASAP!!!!!
Answer:
Below!
Step-by-step explanation:
To find the volume of a cylinder, you can use this formula : v = πr^2h
r = 12km , h = 7 km
v = π(12km)^2(7)
= 3166.72539
Round to the nearest 10th
= 3166.7 km^3
Hope this helps! Best of luck <3
Let vector a = 3i + j - k.
Find the vector b in the direction of vector a such that |b| = 5
Answer:
5i +(5/3)j - (5/3)k
Step-by-step explanation:
Vector b is in the same direction as vector a, so it is a scalar multiple of a.
b = ca for some positive real number c.
b = c(3i + j - k) = 3ci + cj - ck
|b| = sqrt[(3c)^2 + c^2 - c^2] = sqrt(9c^2) = 3c
If |b| = 5, then 3c = 5 and c = 5/3
That makes b = (5/3)(3i + j - k) = 5i +(5/3)j - (5/3)k
In the figure below, APQR is drawn. The line SPT is drawn such that
SPT | QR
m. PQR
because they are
try
PLS HELP ASAP
Answer:
The First answer is 57
Step-by-step explanation:
You take the two angles that you have and add them. Then you subtract that number from 180 and you get your answer. So, it should look something like this; 46+77=123, 180-123=57
Find the measure of b.
Answer:
i'm pretty sure it's 45 degrees?
Answer:
Step-by-step explanation:
b = 25°
Divide. Write your answer as a decimal.
8.722÷(−3.56)=
Answer:
-2.45
Step-by-step explanation:
I used a calculator to find this so I hope it helps :)
the sum of numerator and denominator of the fraction is 12 and the denominator is 2 more than numerator.find the fraction
Let numerator be x
Denominator=x+2ATQ
[tex]\\ \sf\longmapsto x+x+2=12[/tex]
[tex]\\ \sf\longmapsto 2x+2=12[/tex]
[tex]\\ \sf\longmapsto 2x=12-2[/tex]
[tex]\\ \sf\longmapsto 2x=10[/tex]
[tex]\\ \sf\longmapsto x=\dfrac{10}{2}[/tex]
[tex]\\ \sf\longmapsto x=5[/tex]
Now the fraction is
[tex]\\ \sf\longmapsto \dfrac{x}{x+2}[/tex]
[tex]\\ \sf\longmapsto \dfrac{5}{5+2}[/tex]
[tex]\\ \sf\longmapsto \dfrac{5}{7}[/tex]
-- Their sum is 12.
-- If they were equal, each would be 6.
-- To make them differ by 2 without changing their sum, move 1 from the numerator (make it 5), to the denominator (make it 7).
A car travels the first 19km of its journey at an average speed of 57km/h and the remaining 55km at an average speed of 110km/h. Find the average speed of the car for its entire journey.
Answer:
57km /hr+55km/hr÷2 = 56 km/hr
Answer: 14.8km/h
Hope this helps!! Have a good day!!
Your neighbor pays $40 to have her lawn mowed and always adds a 15% tip. You and your friend decide to mow the lawn together and split the earnings evenly.
How much will each of you make?
Answer:
$23
Step-by-step explanation:
A 15% tip on $40 is $6. The total you and your friend will receive is $46. When you split that evenly, you will each receive $23.
Cost of Mowing = $40
Tip = 15%
= 15/100×40
= $6
So you get $40 + $6
= $46
When you divide it in 2 people
= 46/2
= $23
Therefore each of you will make $23
Must click thanks and mark brainliest
Find the coordinates of the image of G(−3,9) after the translation (x,y)→(x+10,y−7) .
(13, 2)
(13, 16)
(7, 16)
(7, 2)
Answer:
D. (7,2)
Step-by-step explanation:
-3 +10 is 7
9-7 is 2.
kinda just put them together, you get (7, 2)
I hope this helps!
pls ❤ and mark brainliest pls!
The image of (-3, 9) is (7,2).
Mathematically speaking, a translation is defined by the following operation:
[tex]P'(x, y) = P(x,y) + T(x,y)[/tex] (1)
Where:
[tex]P(x,y)[/tex] - Original point.[tex]T(x,y)[/tex] - Translation vector.[tex]P'(x,y)[/tex] - Resulting point.If we know that [tex]P(x,y) = (-3, 9)[/tex] and [tex]T(x,y) = (10, -7)[/tex], then the resulting point is:
[tex]P'(x,y) = (-3, 9) + (10, -7)[/tex]
[tex]P'(x,y) = (7, 2)[/tex]
Hence, the image of (-3, 9) is (7,2).
We kindly invite you to check this question on translation: https://brainly.com/question/12463306