9514 1404 393
Answer:
Karl is 40Eddie is 25Step-by-step explanation:
10 years ago, the sum of their ages was 65 -2·10 = 45.
If Karl was twice as old as Eddie, his contribution was 2/3 of the sum and Eddie's was 1/3. That is, Karl was (2/3)(45) = 30 and Eddie was 15 at that time.
Now, Karl is 40 and Eddie is 25.
__
This can be solved using a system of equations.
e = 65 -k
(k -10) = 2(e -10)
Substituting the first equation into the second gives ...
k -10 = 2((65 -k) -10)
k -10 = 110 -2k . . . . . . . simplify
3k = 120 . . . . . . . . . . . . add 10+2k
k = 40
e = 65 -40 = 25
can someone help pls pls pls ill give brainliest
Answer: x= - 3/4
Step-by-step explanation: too much to explain
slove for x pleaseee
what is the value of x
Answer: 35
Step-by-step explanation:
You would set up the equation
25/x=20/28 cross multiply 25•28 and then divide by 20
Step-by-step explanation:
25/x = 20/28
20x = (25)(28)
x = (25)(28) ÷ 20
what is the y intercept of 2y - 2x = 8
Answer:
Step-by-step explanation:
Write in y = mx + b form
here, b ----> y intercept
2y - 2x = 8
2y = 2x + 8 {Divide the equation by 2}
[tex]\frac{2y}{2}=\frac{2x}{2}+\frac{8}{2}\\[/tex]
y = x + 4
y-intercept = 4
What is the probability of rolling an even number on a number cube containing numbers 1 through 6? *
Answer:
[tex]\frac{1}{2}[/tex] or 50%
Step-by-step explanation:
Cube has 6 sides = 3 odds and 3 even
probability is found using
[tex]\frac{number of favourable outcomes}{number of total outcome}[/tex] which is [tex]\frac{3}{6} or \frac{1}{2}[/tex]
1/2 = 50%
If it costs $80,000 to put on an event and the total revenue is $250,000, what is the profit as a percentage of revenue? (Round to the nearest percent.)
twice a number decreased by six is 32 use "x" for the variable
The function y= -0.2 + 0.5 represents the percent y (in decimal form) of battery power remaining x hours after you turn on a laptop computer.
A. Identify and intercept the x- intercept
B. Identify and intercept the y-intercept
Answer:
A
Step-by-step explanation:
intercept the x- intercept
Answer:
Step-by-step explain
x-intercept: 2.8 hours
y-intercept: 0.7 . . . . fraction of power remaining
Step-by-step explanation:
The equation is in slope-intercept form, so the y-intercept can be read directly: 0.7.
To find the x-intercept, set y=0 and solve for x:
0 = -0.25x +0.7
0.25x = 0.7 . . . . . add .25x
x = 2.8 . . . . . . . . . multiply by 4 (that is, the reciprocal of 0.25)
The x-intercept is 2.8; the y-intercept is 0.7.
Diameter of a beach ball is 3 feet what is the volume
v= (4/3)* pi *(d/2)^3 = (4/3) * pi * (3/2)^3 = about 14.14 cu ft Hope this helps you
Answer:
14.13
Step-by-step explanation:
[tex] v = \frac{4}{3} \pi \: {r}^{3} [/tex]
v=4/3×3.14×1.5^3
v=4/3×3.14×3.375
use calculator
v=14.13 feet^3
A,B,C, or D?
________
Answer: It is
D. Blue
!
URGENT HELP !!!!!! Answer correctly !!!!!!!!!!!! Will be marking brainliest !!!!!!!!!!!!!!
Answer:
exact: 3 √ 5
decimal: 6.70820393
Step-by-step explanation:
Hope this helps
Katie bought 0.78 pounds of peanuts and 0.07 pounds of raisins. How many pounds of snacks did she buy in all?
Answer:
0.85
Step-by-step explanation:
you add them... duh
Mhanifa if you are online could you please help me. What is the value of X?
Answer:
A. x = 42.5°Step-by-step explanation:
AB is the diameter, therefore ACB is right angle
2x + 5° = 90°2x = 85°x = 42.5°Correct option is A
30 POINTS!! PLEASE HELP
What is the area of the shape below?
Answer:
168 square feet
Step-by-step explanation:
A = 18 x 8 + 8 x 6 x 1/2
A = 144 + 24
A = 168
Hope that helps!
Answer:
150
-i just learned that and you have to multiply lenght × width × height
18×8×6 and its 150
10)
What is the circumference of a 12-inch diameter pizza? Leave the answer in terms of it.
A)
371
B)
677
o
1270
D)
2471
Plsss helppp!!
4(x + 7) = 38
can you help me find the solution t the equation
Step-by-step explanation:
Given
4(x + 7 ) = 38
4x + 28 = 38
4x = 38 - 28
4x = 10
x = 10 / 4
x = 5 / 2
Hope it will help :)❤
Help please!!! I’ll give brainliest!!
Answer:
g= -9
Step-by-step explanation:
A taxi company charges passengers $1.75 for a ride, no matter how long the ride is, and an additional $0.40 for each mile traveled. The rule c = 0.40m + 1.75 describes the relationship between the number of miles m and the total cost of the ride c.
a. What is the charge for a 1-mile ride?
b. What is the charge for a 2.7-mile ride?
A. $0.40; $5.13
B. $1.75; $2.15
C. $0.40; $1.08
D. $2.15; $2.83
Answer: THE ANSWER IS D. $2.15; $2.83
a taxi company charges passengers 1.75 for a ride,?
a taxi company charges passengers 1.75 for a ride, no matter long the ride is, and an additonal $0.40 for each mile traveled. the rule c=0.40m+1.75 describes the relationship between the number of miles M and the total cost of the ride c.
what is the charge for 2.7 mile ride
A. 5.13
B. 1.08
C. 2.15
D. 2.83
Favorite Answer
D 2.83
c = 0.4. * 2.7 + 1.75
=> c = 2.83
Step-by-step explanation: It Looks Like The Answer is D
c=0.40(2.7)+1.75=$2.83 so $2.83 is the answer
1.75+(2.7*.4)=
1.75+1.08=
2.83
The answer is $2.83
what comes after 47?
Find the equation of the line shown.
Pls helllppp
Answer:
what side is it asking for ? right or left
8m+4m=12m...one solution.. two solutions.. no solutions.. infinite solutions.. which solution is it?
Answer:
One Solution
Step-by-step explanation:
Is 12/25 greater than 1
Answer:
no
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
What is the slope of y=-4
Answer:
Zero
Step-by-step explanation:
Any equation that is y = a number, you have a horizontal line, with a zero slope, think of HOY, H(orizontal) O=zero Y=#
15 pounds of beans are distributed equally into 10 bags to give out at the food bank. How many pounds of beans are in each bag? Enter you answer in simplist form.
Answer:
1.5, or 1 1/2
Step-by-step explanation:
please hlelp meeeeeeeeeeeeee i need help
Answer:
3/4
Step-by-step explanation:
Total number of cases = 8 [1,2,4,2,5,3,1,2]
No. of number less than 4 = 6 [1,2,2,3,1,2]
Probability = 6/8 = 3/4
Answer: 75%
Step-by-step explanation:
Well there are 8 possibilities every time you spin. The chance is 6/8 that you land on a number less than 4, if you spin it once (since 6 out of the 8 possibilities are less than 4). So you just have to divide 6/8 which is 0.75. Multiply by 100 (move the decimal over 2 times to the right) to get the percentage which is 75%.
9) Find the value of two numbers if their sum is 17 and their difference is 1.
Answer: 9 and 8?
Step-by-step explanation:
which equation is represented by the phrase a number increased by 3 equals 10
Help pls ASAP!!! THX
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Step-by-step explanation:
evaluate expressions(-2/5) (-1 1/4)
THIS IS ONE OF THE BENCHMARK QUESTIONS THATS ALL IT SAID
Answer:
Exact Form:
−33/20
Decimal Form:
−1.65
Mixed Number Form:
−1 13/20
Multiply. Express in simplest form. 3/6 x 4/5
Answer:
2/5
Step-by-step explanation:
Answer:
12/30 = 2/5
Step-by-step explanation:
numerator x numerator, denominator x denominator, 6 goes into both