solve the equation for y: 1 / 3 x + y equals 4
Subtract (1/3)x from both sides of the equation.
(1/3)(x) - (1/3)(x) + y = -(1/3)(x) + 4
0 + y = -(1/3)(x) + 4
y = -(1/3)(x) + 4
Done!
f(x)=3x+7, find f (3)=
Answer:
Step-by-step explanation:
F(3) = 3(3)+7 =16
(3x +8) - 6(2.5x - 3)
free brainliest for correct answer, just giving away points
Mr. and Mrs. Mustard have six daughters and each daughter has one brother. How many people are in the Mustard family?
Answer: 7
This is kind of a trick question. Each daughter has one brother- the same brother.
Answer:
14 people
Step-by-step explanation:
6(2) = 12
12 + 2= 14
Choose the statement that describes a way to solve the equation x – 23 = 18.
1. Subtract 23 from both sides of the equation.
2. Subtract 18 from both sides of the equation.
3. Divide both sides of the equation by 23.
4. Add 23 to both sides of the equation.
find size of angle BAC
Answer:
i think the answer is 31°c
The thrift store is selling their old DVDs. When the DVDs first came out, they sold for $19. They have now been marked down by 75%.
A stack of D V D's is shown. They are marked seventy-five percent off.
What is the discounted price of a DVD?
Enter the correct answer in the box.
Answer:
4.75
Step-by-step explanation:
original price (100%) → $19
discounted price ((100-75)%) = (25%) → 25% x $19 = $4.75
Answer:
Step-by-step explanation:
Here's what we have to do:
1. 19 x 0.75
= 14.25
2. 19 - 14.25
= 4.75
3. 4.75 + 14.25
= $19
The Discount is $4.75, and the sale price is $19.00.
This strategy is correct and you should use it. I was confused from the answer, but this strategy has gotten every question correct. I used two types of calculators to double check. I redid the equation three times. I am seriously confused. Hope this answer helped!
If this was not helpful, there are tons of special calculators on the internet. Such as the percent calculator, fraction calculator, and even markup and markdown/discount calculators.
Mary has $65,000 to invest into two accounts. The first account is a private savings offering 6% annual interest and the second account is a government savings account offering 4% annual interest. How much money should Mary invest in each account to make $3,520 in total interest.
Answer:
Step-by-step explanation:
Formula for calculating interest is expressed as;
I = PRT/100
P is principal
R is the rate
T is the time
For first account
I = P(1)(6)/100
I1 = 0.06P1
For the second bank!
I2 =>P2(1)(4)/100
I2 = 0.04P2
If the total interest is $3520, then
I1+I2 = 3520
0.06P1+0.04P2 = 3520.... 1
If the Amount invested = $65000
P1+P2 =65000..... 2
Solve. 1 and 2 simultaneously
Eqn 2 × 0.06
0.06P1+0.06P2 = 3900.... 3
Subtract 1 from 3;
0.04P2-0.06P2 = 3520-3900
-0.02P2 = -380
P2 = 380/0.02
P2 = $19000
Get p1;
P1 = 65000-P2
P1 = 65000-19000
P1 = $46000
Hence $46000 was invested in the first account and $19000 in the second
Eric earns $390 during a 30-hour week. How much does he earn per hour?
Answer:
$13
Step-by-step explanation:
We find the unit rate by dividing the money earned by the hours
$390/30
= $13
He earns $13 per hour
Answer:
I think its 13...
Step-by-step explanation:
I need help plz quickly!!:)
Answer:
the first option (2x+3y=-6)
Step-by-step explanation:
help pls! answer all three questions for brainlist!! (15 points)
Answer:
#1. Peng spent $48,918.
#2. The farmer had $10,660 at first.
#3. 2,160 minutes
Step-by-step explanation:
#1. (26 × $1,334) + (19 × $749)= $48,918
#2. 26 × 410 + 162= $10,660
#3. 2 ×(9 + 6 + 9 + 6)×12 ×3= 2×30×12×3= 2× 360 × 3= 720 × 3= 2,160 minutes
Answer:
For the first one: [tex](26*1334)dollars+(19*749)dollars=\\34684dollars+14231dollars=48915dollars[/tex] this is the expression of how much she spendsFor the second one:[tex]26employee*410dollars/employee=10660dollars\\10660dollars+162dollars=10822dollars[/tex] This was the original amount he hadFor the third one:So rectangles have two pairs of equal sides, 2 rectangles of the same size means their perimeter is [tex]2*(9feet+9feet+6feet+6feet)=60feet[/tex] Change to inches [tex]1foot=12inches,so,60feet=720inches[/tex] She takes 3 mins per inch then[tex]1inch=3minutes\\720inches=(3minutes)*720=2160minutes[/tex] Is how long she would takeI am less than 10 l am not a multiple of 2 l am a composite number.
Answer:
9 is the answer
Step-by-step explanation:
if it was less then ten and not a multiple of 2 then i will ether be 1 3 5 7 9 but the composite numbers are 4 6 8 9 so since it is not a factor of 2 it has to be 9. so 9 is the answer
The number which is less than 10, not a multiple of 2, and is a composite number, is 9.
What is multiplication?One of the four fundamental mathematical operations, along with addition, subtraction, and division, is multiplication. Multiply in mathematics refers to the continual addition of sets of identical sizes.
Given:
I am less than 10 l am not a multiple of 2 l am a composite number,
The numbers which are less than ten are,
9, 8, 7, 6, 5, 4, 3, 2, 1, 0
The numbers which are not the multiple of 2 are shown below,
9, 7, 5, 3, 1, 0
The numbers which are composite are shown below,
9 = 3 × 3
Thus, The number is 9.
To know more about multiplication:
https://brainly.com/question/1135170
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*PLZ HELP*...Given the following word problems, write an inequality that models the problem, then solve and check.
Baylee gets 3 stickers each time she cleans her room. She wants to earn at least 15 stickers in April. How many times does she need to clean her room in April?
Answer:
3x ≥ 15At least 5 timesStep-by-step explanation:
Let the number of cleaning be x
Then required inequality is:
3x ≥ 15Solving:
3x ≥ 15x ≥ 5A fox can run at a rate of 62 miles in 2 hours. A rabbit can run at a rate of 22 miles in 30 minutes. Which animal has the faster speed in miles per hour?
Answer:
The rabbit is faster, as it has a speed of 44 mph.
Step-by-step explanation:
Since the fox runs 62 miles in 2 hours, its speed can be determined by dividing the miles traveled by the time it took to do so. Thus, since 62/2 equals 31, its speed was 31 miles per hour.
In turn, the rabbit can travel 22 miles in half an hour. Following the same procedure, since 22 / 0.5 equals 44, its speed is 44 miles per hour.
Therefore, the rabbit is faster than the fox, since it has a speed of 44 mph versus 31 mph for the latter.
5/6 multiplied by 1/5
Show you work please
Answer:
The answer is 5/30
Step-by-step explanation:
The answer is 5/30 because when multiplying a fraction by a fraction you have to multiply the numerator by the numerator and the denominator by the denominator so if you multiply 5 by 1 you get 5 and when you multiply 6 by 5 you get 30 so the answer is 5/30
John has 30 friends. Then amount of male friends is 4 more than the number of female friends. Which system can be used to find the number of male and female friends?
Answer:
The required system of equations is:
[tex]m+f = 30\\m = f+4[/tex]
Step-by-step explanation:
First of all, the variables have to be selected to represent the quantities.
Let m be the number of male friends and let f be the number of female friends.
Then according to first statement "John has 30 friends"
[tex]m+f = 30\ \ \ \ Eqn\ 1[/tex]
And according to second statement "amount of male friends is 4 more than the number of female friends."
[tex]m = f+4\ \ \ \ Eqn\ 2[/tex]
Hence the required system of equations is:
[tex]m+f = 30\\m = f+4[/tex]
Question 2
Which TWO expressions are equivalent to
1/2(2/3x-4)-2(1/4x-3)
answer:
- 1/6 x + 4
steps by steps:
Find the value of x
Answer:
50?
Step-by-step explanation:
Answer:
x= 106
Step-by-step explanation:
The angle opposite 32 is also 32. Considering 44, the missing angle in that triangle would be 104. The angle to the left of 104 would be 76, and if you consider that angle 30 you are left with the measure of 74. X is the angle next to 74, so it makes sense for it to measure 106 because the values must add to 180, and even if it's not drawn to scale 106 looks accurate
In november it's about 50 degrees in New Jersey but in Antarctica it's about -40 degrees. How much colder is it in Antarctica then it is in New Jersey?
Answer:
90 degrees
Step-by-step explanation:
Answer:
90 degrees.
Step-by-step explanation:
50 degrees (NJ) + -40 degrees (Antarctica) = 90 degrees.
Rita plans to make a call using a calling card. For each call, Rita has two options:
1. Pay $0.49, plus an additional $0.019 per minute.
2. Pay $0.059 per minute.
She predicts that her call will be minutes long. Which inequality represents the statement, "Rita would save money using the second option"?
The inequality that represents Rita saving money from the second option is 0.059x < 0.49 + 0.019x
How to determine the inequality that represents the statement?From the question, we have the following parameters that can be used in our computation:
1. Pay $0.49, plus an additional $0.019 per minute.2. Pay $0.059 per minute.These statements can be represented as
Option 1: y = 0.49 + 0.019x
Option 2: y = 0.059x
Where y is the total amount and x is the number of minutes
When she saves money, we have
Option 2 < Option 1
Substitute the known values in the above equation, so, we have the following representation
0.059x < 0.49 + 0.019x
Hence, the inequality is 0.059x < 0.49 + 0.019x
Read more about inequality at
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3/4x-5 = x
Please show working .
3-5=4x
-2=4x
Divide both sides by 4
-2/4=4x/4
X= -1/2
Please help I have no idea what the answer is
Answer:
39
Step-by-step explanation:
180 - 141 = 39
A straight angle equals to 180, since the lines are congruent, the angles have the same measurements.
Answer:
The value of x is 141° {Co interior angles}.
Step-by-step explanation:
Hope this helps you. Please mark me as Brainlist.
4x - 5y = 1
x= -6
Solve for x and y
Step-by-step explanation:
Cameron won a laptop in a school raffle. The diagonal of the laptop measures 26 inches. The length is 24 inches. How tall is the computer screen?
plz help me
Determine which slope is the steepest. Explain why it is the steepest.
A) Slope=2
B) Slope= 1/2
C)Slope=-4
Answer:
Answer choice C
Step-by-step ex. 4 is the greatest number out of explanation:
The greater the absolute value is, the steeper it is. In this case, the absolute value of -4 is positive 4 since the absolute value shows how far a number is a ways from zero and is always positive. 4 is the largest number out of all of these choices which means it is the steepest slope.
help find the missing side length????
Answer:
24
Step-by-step explanation:
LHS and RHS have same length so 66 - 42 = 24
If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!
help please will give brainliest!!!!
Answer:
9
Step-by-step explanation:
15^2-12^2=81
So
[tex] \sqrt{81} = 9[/tex]
whats the circumference of a circle if the radius is 1.5 show your work
Answer:
well the eqaution is c=2pie r
the answer is 9.42
Step-by-step explanation:
hope this helpsss
Step-by-step explanation:
C=2πr
=2×22/7×1.5
=44/7×1.5
=9.42857143
which of the following shows a proportional relationship
Answer:
h
Step-by-step explanation:
9514 1404 393
Answer:
c) H
Step-by-step explanation:
Consider the ratios of y to x:
F: 4/2 ≠ 13/5
G: 1/2 ≠ -2/5
H: 10/2 = 25/5 = 30/6 = 50/10 . . . . a proportional relationship
J: 3/2 ≠ 6/5
Table H shows a proportional relationship.
Which of the sets shown includes the elements of set Z that are both odd numbers and multiples of 7?
Z={-21, -14, -7.0, 7, 14, 21}
A {-21, 21)
B. {-21.-7. 7. 21)
C: {-14, 0.14)
D. {-21, -14, -7)
Answer:
B. {-21.-7. 7. 21)
Step-by-step explanation:
The set made up of odd numbers and multiples of 7 is given as;
{-21.-7. 7. 21)
Multiples of 7 are usually those numbers where 7 is factor.
Odd numbers are numbers that cannot be divide by 2.
So, the most fitting answer is B.