Answer:
Fred is 6
Jimmy is 17
Step-by-step explanation:
Jimmy's age =2x +5
Fred's age =x
x+2x+5=23
3x=23-5
3x=18
x=6
Jimmy's age =2(6)+5=17
Fred is 6
Which of the following equations has exactly one solution?
2x + 3 – 6x=-4x – 3
3x + 12 – 9x = -11x + 12 + 5x
6x +9 - 8x = 2x + 9
7x + 3 – 8= 13x + 5 – 6x
Answer:
I belive I might be c not completely sure but pretty positive
please help me out here
Answer:
x = 4, x = -4
Step-by-step explanation:
4 x 4 = 16
-4 x -4 = 16
2^-5/-4^3
with work please
9514 1404 393
Answer:
-1/2048
Step-by-step explanation:
The Order of Operations tells you to evaluate each of the exponential expressions first. Then you do the division.
= (1/32) / (-64)
= -1/(32·64) = -1/2048
__
You can also rewrite the expression in terms of powers of 2.
2^-5/-4^3 = -1/((2^5)(2^2)^3) = -1/(2^5×2^6) = -1/2^11
= -1/2048
_____
The applicable rules of exponents are ...
a^-b = 1/a^b
(a^b)^c = a^(bc)
(a^b)(a^c) = a^(b+c)
4 = 2^2
2^5 = 32
4^3 = 64
Carly sold 18 rolls of wrapping paper. That is 2 times as many rolls as Jasmine sold. How many rolls of wrapping paper did they sell together?
Answer:27Step-by-step explanation:
Answer:
54 rolls of wrapping paper
Step-by-step explanation:
Carly = 18 rolls
Jasmine = (18×2) = 36 rolls
18 + 36 = 54 rolls
Hope it helps :D
Earth is rotating around the Sun about 18.6 miles
Step-by-step explanation:
miles travelled = speed * time
= 18.6 * 4.8 = 89.28 miles
Nah because what is this-
(x/5)+(y/2)=1
im wondering what the answer to this problem is
Not giving an anwser to this, but all problems like this. Use Math-way, its free and solves euqations like this automaticly.
The integers from -3 to +3 can be used in the blanks below. which of these integers produces a positive, even integer for the expression?
-8/2+4 () -2 =
My daughter filled the paren with a 3, but I though the question asks for a positive, even integer.
Answer:
Plugging in 3 does in fact produce a positive, even integer.
Step-by-step explanation:
-8/2 + 4(3) - 2 = ?
-4 + 12 - 2 = ?
? = 6
If x is an odd integer and y is a negative, odd integer, the product of x and y must be
Plz help I am confused
Is the square root of 7 greater or less then 14/5
Answer:
less then
Step-by-step explanation:
the square root of 7 is 2.64 and 14/5 is = 2.8
Can someone answer this please
Answer:
43.6 mm²
Step-by-step explanation:
Solve the formula s=4pi r^2 for r
Answer:
The formula to find the surface area of a sphere is to take the radius of the sphere and square it and multiply that amount by pi and then multiply that by 4. This is written algebraically as S=4πr2, where S is the surface area, r is the radius, and the value of π is 3.14.
One number is 9 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 848, find the numbers
The three numbers are needed
Answer:
[tex]first \: no \: 9x \\ second \: numberx \\ third \: no9x + 100 \\ 9x + x + 9x + 100 = 848 \\ 19x + 100 = 848 \\ 19x = 848 - 100 \\ \\ 19x = 748 \\ \\ x = 39.4[/tex]
Step-by-step explanation:
9×+×+100+9×=848
19×+100=848
19×=848-100
19×=748
×=39.4
9×=354.6
9×+100=354.6+100=454.6
what percentage of 85 is 15
Answer:
The answer to your question is 17.65
Answer: 17.65%
Step-by-step explanation:
X/100 = 15/85 (cross multiplication)
(100*15)/85 = 17.65%
(This helps: %/100 = is/of (cross multiplication)
Pls help me with these question pls!!!!!????
Answer:
Number one is only a function
Step-by-step explanation:
A function has all different x values, but if there are two of the same x values with different y values, that is not a function. It’s okay if there are two do the same x values- they just have to have the same y values.
Number one has all different x values
Number two has an x value with two different y values, therefore it is not a function
Number 3 has two of the same x values but with different y values, so it’s not a function
Number four is not a function because of the vertical line test. You pick a point on the line and draw a vertical line all the way through the line. If that point passes through any other points, that it is not a function. Number four doesn’t pass the vertical line test, so it’s not a function.
A park ranger hiked 3/4 mi to a lookout, another 5/7 mi to a bird's nest, and finally 5/14 mi to a campsite. How far did the park ranger hike?
Answer:
2 miles and 88 yards.
Step-by-step explanation:
4 has 2*2 as prime factors
5 is prime
10 has 2 and 5 as prime factors
Thus, the lowest common denominator will be 2*2*5
3/4=15/20
3/5=12/20
7/10=14/20
Now that we have three fractions with the same denominator, we can add the numerators
15+12+14=41
So 41/20ths
That’s 2 and 1/20th
So the final answer is 2 miles and 88 yards! :)
Find the distance between X (-3,8) and Z (-5,1). Round to the nearest tenth if necessary.
9514 1404 393
Answer:
7.3
Step-by-step explanation:
The distance formula is used for this purpose.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((-5-(-3))² +(1 -8)²) = √((-2)² +(-7)²) = √(4+49) = √53
d ≈ 7.28011 ≈ 7.3 . . . units
XZ ≈ 7.3
Answer:
the correct answer is 7.3 units
Step-by-step explanation:
HELPPPP PLEASE!!
b/c =a ;c
Answer:
[tex] \frac{b}{c} = a \\ \\ ac = b \\ \\ c = \frac{b}{a} [/tex]
I hope I helped you^_^
One of the legs of a right triangle measures 4 cm and the other leg measures 6 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.
Answer:
7.2
Step-by-step explanation:
there are 45 students in a speech contest. Yesterday, 2/3 of them have their speeches. Today, 3/5 of the remaining students give their speeches. How many students still haven't given their speeches?
Answer:6 students remaining
Step-by-step explanation:Multiply 2/3 *45 which equals 30. If 30 students gave their speech on the first day there are 15 students remaining. Then multiply 3/5 * 15 which equals 9. If 9 of the 15 remaining students gave their speech than 15-9= 6 students remaining.
Rewrite the following integer 169 as a base and exponent without using an exponent of 1.
Step-by-step explanation:
169 = (13)²
169 is the square of 13.
Answer:
[tex] \sf 169 = (13^2)[/tex]
To
Ryan's Coffee shop earned $4,500
income last week. Expenses were
$4,900. What was Ryan's profit or loss for
the week?
help
The answer is, C 400 loss.
Use algebra to write an expression for each of the following without using the multiplication sign or the division sign. 3 more than the value of x
Step-by-step explanation:
3 more than the value of x
x+3
Kyle bought a sheet of lumber 8.7 feet long to build fence rails. He cut the strip into 3 equal pieces. How long is each piece?
Answer:
i believe its 2.9 feet. 2 feet 10 inches 51/64 of an inch
one quarter of a certain number added to one eighth of the same number is 12. What is the number
Answer:
32
Step-by-step explanation:
let the number be n , then
[tex]\frac{1}{4}[/tex] n + [tex]\frac{1}{8}[/tex] n = 12 ( multiply through by 8 to clear the fractions )
2n + n = 96
3n = 96 ( divide both sides by 3 )
n = 32
The number is 32
please help me answer this question.. am giving brainliest
Step-by-step explanation:
We are going to use the following properties of logarithms to solve this problem:
[tex]\log{\dfrac{a}{b}} = \log{a} - \log{b}[/tex]
and
[tex]\log{ab} = \log{a} + \log{b}[/tex]
So we can rewrite the given equation as
[tex]\log{2x^3} - \log{x} = \log{\left(\dfrac{2x^3}{x}\right)} = \log{2x^2}[/tex]
Also,
[tex]\log{16} + \log{x} = \log{(16x)}[/tex]
So we can write
[tex]\log{2x^2} = \log{(16x)}[/tex]
or eliminating the log symbols, we get
[tex]2x^2 = 16x[/tex]
The solutions for the equation above are
[tex]x = 8\:\text{and}\: 0[/tex]
What is the probability of reaching
into the bag and picking a blue marble,
and then drawing again (without
replacing the marble you picked the
first time) and picking a red marble?
Answer:
2/7 answer C. I have to make this answer longer I guess
Jake tosses a coin and rolls a six-sided die. All of the following are possible outcomes EXCEPT: ___________
a. Tails, Three
b. Heads, Seven
c. Tails, One
d. Heads, Five
What is the product? Enter your answer as a fraction, in simplified form, in the box. 38⋅(−36)
Answer:
-1368
Step-by-step explanation:
