Answer: girl- 19yr old mom- 38yr old dad- 43 yr old
Step-by-step explanation:
5x+5=100
5x-5=100-5
5/5x=95/5
x=19
2(19)=38
38+5=43
How many 38s does it take to make 32.
Answer:
.842
Step-by-step explanation:
Divide 32 by 38 to figure out how many of them are needed. Answer is .842 rounded.
3 less than the quotient of a number y and 4
Expression:
When y = 20, the value of the expression is
Please help ASAP!!
Step-by-step explanation:
3 less than the quotient of a number y and 4
= y/4 - 3.
When y = 20, y/4 - 3 = 20/4 - 3 = 2.
Jamie works 6.5 hours on Monday and 5.25 on Tuesday. She makes $12 per hour. How much money does she earn from working Monday and Tuesday?
PLEASE HELP! 40 POINTS! How can you solve for x in the proportion StartFraction 7 over 8 EndFraction = StartFraction x over 24 EndFraction? (The proportion is: 7/8 = x/24)
a.Set the sum of 7 and 8 equal to the sum of 24 and x, and then solve for x.
b.Set the sum of 7 and 24 equal to the sum of 8 and x, and then solve for x.
c.Set the product of 7 and 8 equal to the product of 24 and x, and then solve for x.
d.Set the product of 7 and 24 equal to the product of 8 and x, and then solve for x.
Answer:
as isyllus says, Set the product of 7 and 24 equal to the product of 8 and x, and then solve for x.
Step-by-step explanation:
We given the fraction to be solved:
Using cross multiplication method:
i.e. Numerator of Left Hand Side term to be multiplied with Denominator of Right Hand Side term and put equal to multiplication of denominator of Left Hand Side term to Numerator of Right Hand Side term.
So, the first step to be carried out as per cross multiplication method:
Set the product of 7 and 24 equal to the product of 8 and x, and then solve for x.
Step-by-step explanation:
–45 • –3 = please i need hep
Answer:
135
Step-by-step explanation:
hello there can anyone solve this plz (chart is attached):
correct answer gets brainliest
If h(x) = f[f(x)] use the table of values for f and f ' to find the value of h '(1)
Answer:
[tex]h^\prime(1)=14[/tex]
Step-by-step explanation:
We have the function:
[tex]h(x)=f[f(x)][/tex]
And we want to find:
[tex]h^\prime(1)[/tex]
So, we will differentiate function h. By the chain rule, this yields:
[tex]h^\prime(x)=f^\prime[f(x)]\cdot f^\prime(x)[/tex]
Then it follows that:
[tex]h^\prime(1)=f^\prime[f(1)]\cdot f^\prime(1)[/tex]
Using the table, we acquire:
[tex]h^\prime(1)=f^\prime(3)\cdot2[/tex]
And using the table again, we acquire:
[tex]h^\prime(1)=7\cdot 2[/tex]
Evaluate. Hence:
[tex]h^\prime(1)=14[/tex]
Find the value of 7 + 3↑2 (-5 + 1) ÷ 2.
Answer:
-11
Step-by-step explanation:
7 + 3↑2 (-5 + 1) ÷ 2
7 + 3↑2(-4) ÷ 2
7+9(-4) ÷ 2
7+(-36) ÷ 2
7-18
-11
Answer:
Im not sure what the arrow is for but
7 + 3.2 (-5 + 1) ÷ 2= 8.2
Step-by-step explanation:
7+3.2=10.2
(-5+1)÷2= -2
-2+10.2= 8.2
ANSWER: 8.2
please answer quickly
geometry reflections translation: (x, y)->(x+2, y- 1)
H(-2, 4), 1(0,5), H3, 2)
Answer:
H'(0, 3); I'(2, 4); J'(5, 1)
Step-by-step explanation:
H'(-2+2,4-1)
H'(0, 3)
I'(0+2, 5-1)
I'(2, 4)
J'(3+2, 2-1)
J'(5, 1)
The difference of 10 and 3 times x .
Answer:
10-3x that would be 7x
Step-by-step explanation:
10-3=7
7times x=7x
can i plz have brainliest?
plz?
Write the point-slope form of the given line that passes through the points (0, -3) and (4, 1). Identify (x1, y1) as (0, -3). Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution.
Answer:
X1=0
Y1=-3
X2=4
Y2=1
Slope=(y2-y1)/(x2-x1)
Slope=(1-(-3))/(4-0)
Slope=4/4
Slope=1
Step-by-step explanation:
Combine into a single logarithm.
3log(x+y)+2log(x-y)-log(x^2 +y^2)
Answer:
[tex]3\log _{10}\left(x+y\right)+2\log _{10}\left(x-y\right)-\log _{10}\left(x^2+y^2\right)=\log _{10}\left(\frac{\left(x+y\right)^3\left(x-y\right)^2}{x^2+y^2}\right)[/tex]
Step-by-step explanation:
Given the expression
[tex]3log\left(x+y\right)+2log\left(x-y\right)-log\left(x^2\:+y^2\right)[/tex]
solving to write into a single logarithm
[tex]3log\left(x+y\right)+2log\left(x-y\right)-log\left(x^2\:+y^2\right)[/tex]
[tex]\mathrm{Apply\:log\:rule}:\quad \:a\log _c\left(b\right)=\log _c\left(b^a\right)[/tex][tex]3\log _{10}\left(x+y\right)=\log _{10}\left(\left(x+y\right)^3\right)[/tex]
so
[tex]=\log _{10}\left(\left(x+y\right)^3\right)+2\log _{10}\left(x-y\right)-\log _{10}\left(x^2+y^2\right)[/tex]
[tex]\mathrm{Apply\:log\:rule}:\quad \:a\log _c\left(b\right)=\log _c\left(b^a\right)[/tex][tex]2\log _{10}\left(x-y\right)=\log _{10}\left(\left(x-y\right)^2\right)[/tex]
so
[tex]=\log _{10}\left(\left(x+y\right)^3\right)+\log _{10}\left(\left(x-y\right)^2\right)-\log _{10}\left(x^2+y^2\right)[/tex]
[tex]\mathrm{Apply\:log\:rule}:\quad \log _c\left(a\right)+\log _c\left(b\right)=\log _c\left(ab\right)[/tex][tex]\log _{10}\left(\left(x+y\right)^3\right)+\log _{10}\left(\left(x-y\right)^2\right)=\log _{10}\left(\left(x+y\right)^3\left(x-y\right)^2\right)[/tex]
so
[tex]=\log _{10}\left(\left(x+y\right)^3\left(x-y\right)^2\right)-\log _{10}\left(x^2+y^2\right)[/tex]
[tex]\mathrm{Apply\:log\:rule}:\quad \log _c\left(a\right)-\log _c\left(b\right)=\log _c\left(\frac{a}{b}\right)[/tex][tex]\log _{10}\left(\left(x+y\right)^3\left(x-y\right)^2\right)-\log _{10}\left(x^2+y^2\right)=\log _{10}\left(\frac{\left(x+y\right)^3\left(x-y\right)^2}{x^2+y^2}\right)[/tex]
[tex]=\log _{10}\left(\frac{\left(x+y\right)^3\left(x-y\right)^2}{x^2+y^2}\right)[/tex]
Thus,
[tex]3\log _{10}\left(x+y\right)+2\log _{10}\left(x-y\right)-\log _{10}\left(x^2+y^2\right)=\log _{10}\left(\frac{\left(x+y\right)^3\left(x-y\right)^2}{x^2+y^2}\right)[/tex]
Please help me out!!!!!
Answer:
last option is the polynomial
Step-by-step explanation:
The easiest way to go about this is to look at the last statement
f(2) = 144
The solution to finding the polynomial is by substituting x = 2 into any of the polynomials; if after substituting, we have the value as 144, then the given polynomial is our answer
Let us have a look at each of the polynomials in the option;
1. 2(2)^7 -8(2)^5 + 2(2)^3 = 16
This cannot be our answer
2. 2(2)^7 - 2(2)^5 + 4(2)^3 = 224
This is not our answer
3. 2(2)^7 - 2(2)^5 + 144(2)^3 = 1,344
This is not our answer
4. 2(2)^7 -4(2)^5 + 5(2)^3 = 168
This is not our answer
5. 2(2)^7 -4(2)^5 + 2(2)^3 = 144
This is our answer
rewrite as a monomial in its standard form:
-(3xy)^2 * (-3x)^3
30 POINTS!!!!
A scuba diver is swimming at a depth of 46 meters below sea level. He swims 0.5 meters toward the surface every 3 seconds.
What is his location relative to the surface after 15 seconds?
Answer:
The scuba diver would be 43.5 meters from the surface after 15 seconds
Step-by-step explanation:
So first we need to take 0.5 and multiply it by 5 since we know 15 divided by 3 is equal to 5, and we get 2.5
We then take 46 and subtract 2.5 from it, resulting in 43.5
Write y−4=1/2(x−3) in slope-intercept form.
Answer:
y = 1/2x + 2 1/2
Step-by-step explanation:
y - 4 = 1/2 (x - 3)
y - 4 = 1/2x - 3/2
y = 1/2x - 3/2 + 4
y = 1/2x + 2 1/2
find the slope of the line that passes through (48,44) and (6,9)
There are 5 red markers, 2 orange markers, 3 yellow markers, and 5 green markers in a desk drawer. plss help
Answer:
15 markers in all
Step-by-step explanation:
5 + 2 + 3 + 5 =
5 + 5 = 10
+
2 + 3 = 5
=
10 + 5 = 15
Brainliest Please!!
plzzz help meeWhich of these copper wires has the
highest resistance?
A 0.5 mm diameter, 10 cm long
B 0.5 mm diameter, 20 cm long
C 1.0 mm diameter, 10 cm long
D 1.0 mm diameter, 20 cm long
Answer:
A. option is your answer.... hope it helps you friend ❤️.....and please follow meWhich decimal is equivalent to 5/8
Answer:
0.625
Step-by-step explanation:
The lines on top of the numbers means that the number continues for a long time. However, 5/8 isn't infinite which means we can rule the 2nd and 3rd options. We also know that 5/8 certainly isn't greater than 1 which means the only answer we have left is the 1st one.
(sorry this is so confusing but I hope it helped anyway)
The speed limit is 55 kilometers per hour. What is the speed limit in miles per hour?
Answer:
34.2 or 34.20
Step-by-step explanation:
I think that it is this
Answer:
34.2
Step-by-step explanation:
Can someone explain this problem to me?? After a price reduction of x%, an item has its price increased to its original value. What was the percent of increase? Express your answer as a common fraction in terms of x.
Answer:
[tex]We\ are\ given\ that,\\Percent\ of\ reduction=x_-\\So,\\Let\ the\ percent\ of\ increase\ be\ x_+\\Let\ the\ original\ price\ of\ the\ item\ be\ y\\Let\ the\ price\ after\ the\ decrease\ be\ z\\.\\Hence,\\y-\frac{x_-}{100} =z\\ z+\frac{x_+}{100}=y\\By\ simply\ adding\ the\ equations,\\(y+z)+(- \frac{x_-}{100}+\frac{x_+}{100})=(z+y)\\Hence,\\- \frac{x_-}{100}+\frac{x_+}{100}=0\\Hence,\\ \frac{x_-}{100}=+\frac{x_+}{100}\\Hence,\\x_-=x_+\\[/tex]
[tex]Hence,\ the\ percent\ of\ increase\ is\ same\ as\ the\ percent\ of\ decrease.[/tex]
In a school with 700 students, a survey revealed that 80% of the students liked the new lunch menu. Based on this data, how many students liked the new menu?
Answer:
560 students
Step-by-step explanation:
We are given that the total number of students is
700
The survey results is 80% likes the new lunch menu
We are expected to establish what amount of students is 80%
=80/100*700
=0.8*700
=560
Hence 80% of 700 is 560
Mrs. Pregnals's biology classes are going on a field trip. She has them break into groups of three or four
students in order to do labs. She has a total of 120 students and 32 total groups are formed.
If i represents the number of three person groups and represents the number of four person groups, then
write a system of equations that models this situation.
Answer:
x + y = 32 (1)
3x + 4y = 120 (2)
x = 8; y = 24
Step-by-step explanation:
Total students = 120
Number of groups = 32
If the number of three person groups = x
Number of four person groups = y
write a system of equations that models this situation
x + y = 32 (1)
3x + 4y = 120 (2)
From (1)
x = 32 - y
Substitute x = 32 - y into (2)
3(32 - y) + 4y = 120
96 - 3y + 4y = 120
- 3y + 4y = 120 - 96
y = 24
Substitute y = 24 into (1)
x + y = 32
x + 24 = 32
x = 32 - 24
x = 8
x = 8; y = 24
Brandon decided to make his own hand sanitizer.
To be effective, hand sanitizer should contain 60% alcohol.
If Brandon uses 120ml of pure alcohol, how much sanitizer can he make?
Answer:
200ml
Step-by-step explanation:
120ml ÷ 60 = 2 x 100 = 200ml
The solution is 200 mL
The amount of sanitizer Brandon can make from 120mL of alcohol is given by the equation A = 200 mL
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the amount of sanitizer from 120 mL of alcohol be A
Now , the equation will be
The sanitizer should contain 60% alcohol
So ,
120 = ( 60 / 100 ) x amount of sanitizer from 120 mL A
Substituting the values in the equation , we get
120 = ( 60 / 100 ) x A
Divide by 60 on both sides of the equation , we get
A / 100 = 2
Multiply by 100 on both sides of the equation , we get
A = 200 m L
Therefore , the value of A is 200 mL
Hence , the amount of hand sanitizer is 200 mL
To learn more about equations click :
https://brainly.com/question/19297665
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It takes 12 hours to fill a pool with two pipes, where the water in one pipe flows three times as fast as the other pipe. How long will it take the slower pipe to fill the pool by itself
7th grade math help me pleaseee
no, -6+2= -4
not -6 +(-2)
Ivan earned $343.75 for working 25 hours last week. How much does Ivan get paid per hour?
Answer:
$13.75
Step-by-step explanation:
Ivan earns $343.75 working for 25hours
The amount that Ivan gets if he works for 1 hour can be calculated as follows
= 343.75/25
= 13.75
Hence the amount paid for one hour is $13.75
Find the area of the red triangle.
Also explain.
Answer:
The answer is 9
Step-by-step explanation:
So In order to solve this problem, you need to understand how the area of a parallelogram works. If you already know how the area of a parallelogram and the area of a triangle are related, add 79 and 10 and subsequently subtracting 72 and 8 to get 9.
Answer:u
Step-by-step explanation:
A trader paid 15 for 6 drinking cups. One of the cups got broken. He sold the remaining five, making a profit of 10percent calculates the cost of each of the six cups
Answer:
The cost of each of the six cups is 2.50.
Step-by-step explanation:
The cost of each of the six cups can be calculated as follows:
Cost per cup = Total cost / Number of cups paid for ................. (1)
Where;
Cost per cup = ?
Total cost of cups = 15
Number of cups paid for = 6
Substituting the values into equation (1), we have:
Cost per cup = 15 / 6
Cost per cup = 2.50
Therefore, the cost of each of the six cups is 2.50.
Solve for x:16^(4x-3)=8^(2x+4)
Answer:
x = 2.4
Step-by-step explanation:
16^(4x - 3) = 8 ^ (2x + 4)
16 = 2^4
8 = 2^3
2 ^ 4*(4x - 3) = 2^3(2x + 4)
Since the bases are the same, you can equate the powers
4(4x - 3) + 3*(2x + 4) Remove the brackets.
16x - 12 = 6x + 12 Subtract 6x from both sides
16x - 6x - 12 = 12 Combine the terms on the left
10x - 12 = 12 Add 12 to both sides
10x = 24 Divide by 10
x = 2.4