Answers
Answer:
1) x: small #; y: large #
4y = 7x
x + y = 22
----------------
-7x + 4y = 0
x + y = 22
---multiply the second equation by -4------
-7x + 4y = 0
-4x - 4y = -88
----solve------
-11x = -88
x = 8
---substitute with any of the equation above i chose the very first one------
4y = 7(8)
4y = 56
y = 14
x = 8; y = 14
2) x = small #; y = large #
y - x = 15
5x = y - 9
----after rearranging, solve-----
-x + y = 15
5x - y = -9
-4x = 6
x = -1.5
--------substitute--------
-(-1.5) + y = 15
1.5 + y = 15
y = 13.5
x = -1.5; y = 13.5
3) x = lemon cream; y = fudge cookie
3x + 2y = 400
2x + 3y = 425
----multiply the first equation by -2, multiply the second equation by 3------
-6x - 4y = -800
6x + 9y = 1275
----solve------
5y = 475
y = 95
--------substitute--------
3x + 2(95) = 400
3x + 190 = 400
3x = 210
x = 70
x = 70; y = 95
Related Questions
will mark branliest
equation 5(7j + 6 + 3j)
use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all steps in your work.
Answers
Answer:
50j+30 and 5(10j+6)
Step-by-step explanation:
5(7j+6+3j)
First, do the parenthesis
5(10j+6)
Distribute
50j+30
which vaule is farthest away form 0 on the number line -16, 15.5, |15|, |16.5|
Answers
EXPLANATION.
the farthest away number on the number line is the greatest number. (don’t worry about - its the same distance on left and right of the number line)
So if we look at the numbers it is clear that 16.5 is the greatest number. meaning it is the farthest from 0.
Chris borrowed $1,500 at a simple interest rate of 5% to buy a computer. He plans to have the loan paid back in 2.5 years. How much simple interest will Chris pay
work needs to be shown
Answers
Your Answer:
$75
Step-by-step explanation:
1. 5% to a decimal: 0.05
2. 0.05 × 1,500 = 75
Hope this helped
There is approximately 3.3 x 10*8 people in the United States of America in 2018. The average person consumed about 3.4 x 10*2 milligrams of sodium each day. Approximately how much sodium was consumed in the USA in one day in 2018?
Answers
The data set shows the ages of everyone in a dance class. 4, 17, 17, 17, 17, 17, 18, 18, 18. Select the statement that correctly describes the data. .
A. The typical value is 17. Most values are close to 17, except 4, which is an extreme value.
B. The typical value is 18 because it is the maximum.
C. The typical value is 4 because it is the minimum.
D. The typical value is 9 because that is the total number of people.
Answers
Answer:
A, I MIGHT BE WRONG DONT BLAME ME I TRY
Step-by-step explanation:
Answer: I think its D
Step-by-step explanation:
Which are equivalent ratios to 3:4?
Check all that are true.
6:8
15:20
9:12
9:15
16:20
Answers
Answer:
6:8
15:20
9:12
How?
3:4*2=6:8
3:4*5=15:20
3:4*3=9:12
The equivalent ratio to the given to 3:4 are 6:8, 15:20 and 9:12
How to obtain real measurements from the ratio of two measurements?Suppose the real measurements were "a" and "b"
Then their ratio will be formed as
[tex]\dfrac{a}{b} = \dfrac{p \times x}{q \times x} = \dfrac{p}{q}[/tex]
where is a common factor (not 1)
This shows that to get the real measurements from the given ratio, we need to assume to have some factor possibly cancelled from both the numerator and the denominator. Thus, a = px, b = qx
We are given the ratio as; 3:4
3: 4 x 2 = 6 : 8
3: 4 x 5 = 15 : 20
3: 4 x 3 = 9 : 12
Therefore, the equivalent ratio to the given to 3:4 are 6:8, 15:20 and 9:12
Learn more about ratio here:
brainly.com/question/186659
#SPJ2
what is the bottom and what is the frequency???
Answers
Two bags each contain black and white marbles, as shown below. If Karl draws one marble from each bag, what is the probability that they will both be black?
A.3/7
B.1/6
C.11/12
D.3
Answers
Answer:
The answer is A
Step-by-step explanation:
Hope this helps!
:)
Answer:
I think A. But I'm not 100% sure.
Step-by-step explanation:
mr cho travel 30 1/5 miles in 2/3 of an hour. what is the average speed, in miles per hour, of the car?
Answers
ANSWER: 45.6MPH
Answer:
45.6
Step-by-step explanation:
And also weltonlogan0 They got the same awnser “45.6”
Cecilia brought of a pound of shredded newspaper and Juan brought of a pound of shredded newspaper to art class for a paper mâché project. They combined the shredded newspaper and divided it equally among 5 people at their table. How much shredded newspaper did each person at the table receive? The answer choose are in the pic.0
Answers
Answer:
1/5
Step-by-step explanation:
Answer: D. 1/5 of a pound
Step-by-step explanation:
help pls i don't do good on these
Answers
Answer:
its 90
Step-by-step explanation:
don't feel like explaining
help plzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
Draw coorinate grids. Find the point where it stops at make it on the grid.
Step-by-step explanation:
How many tenths is 28 equal to?
Answers
Answer:
2 tenths and 8 ones
Step-by-step explanation:
look at the photo due soon
Answers
Answer:
a= 6x+12
a= 6(x+2)
Step-by-step explanation:
Kinda confused but I hope this helps
Answer:
6x+12 & 2(3x+6)
Step-by-step explanation:
2(3x+6)
distribute
6x+12
What property of equality would you use to solve the equation n/4 = 16.
Answers
Answer:
Multiplication Property of Equality.
Step-by-step explanation:
Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other.
Multiply 4 to both sides of the equation:
(n/4) * 4 = (16) * 4
n = 16 * 4
n = 64
n = 64 will be your answer.
~
Tyler used
1 1/4 gallons of paint to paint
5/7 of a fence. How many gallons will it take to paint the whole fence? Write a multiplication equation or a division equation to represent this question, then find the answer.
I also need an explanation for the answer and I need it today :)
Answers
Answer:
1 3/4 gallons of paint
Step-by-step explanation:
sorry if wrong
In a Library, Each bookshelf is 1.2m long 90cm wide and 30cm high. How
many books of size 15cm by5cm by 30cm will fit on each shelf? Find the total number of books in the library if there are 60 shelves.
Answers
Answer:
8640
Step-by-step explanation:
No. of books that can be fit in one single shelf = 90/15 x 120/5 = 144
Such that the total number of books in the library if there are 60 shelves = 144 x 60 = 8640
-6x ≤ 12
solve and show work
Answers
Answer:
x = -2
Step-by-step explanation:
- x - = positive
-6 x -2 = 12
Answer:
Step-by-step explanation:
-6x ≤ 12
Divide both sides by (-6). When dividing by negative number ≤ will change to ≥
-6x/-6 ≥ 12/-6
x ≥ -2
Help please pleaseee
Answers
Answer:
27$
Step-by-step explanation:
Answer:
$27.00
Step-by-step explanation:
3 x 2 x 1 = 6 m³
6 m³ x $4.50 = $27.00
If Sophia purchases n songs for .99 cents each, write an expression for the total cost.
Answers
Answer:
I think the answer would be n×0.99
Step-by-step explanation:
the answer will be n×0.99 because she bought for example n=7 each for 99 cents. to find the total you would have to do 7x0.99. Hope this help you
Help fast don’t understand
Answers
Answer:
Part A: (-3, -2) and (4, 3)
Part B: 24 units
(EASY POINTS) Answer num: 5 with a detailed explanation. :)
Answers
Answer:
There is no picture
Step-by-step explanation:
Explain how to draw a circle with a circumference of pi^2 inches.
Answers
Answer:
here can you give me brainliest
Step-by-step explanation:
hi! can someone please help? i added a pic so that u can see what i need help on. hopefully it helps
Answers
Answer:
I'm pretty sure that the answers would go, Wrong, increased, 9 1/2 points, 6 5/8 points, dropped, 12 3/4 points.
Step-by-step explanation:
The reason why it would be wrong is because the amount of points lost was less than the total amount of points gained.
In week one and two the company gained 9 1/2 points and 6 5/8 points. When you add them together, you get 16 1/8 points.
In week three the company lost 12 3/4 points. If you multiply the fraction to change the denominator to 8, the mixed fraction becomes 12 6/8.
16 1/8 - 12 6/8 = 3 3/8
As you can see, there are still points left over.
In the fourth week, they ended up losing all of their points and then some more, but from my understanding it's just asking about the third week.
Hope that this helps!
Helppppppppppp. Pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee
Answers
Answer:
7
Step-by-step explanation:
form a proportion
12/2=42/x
cross multiply
12x=84
x=7
please help me with my math HM pleeease
Answers
hey luvs help would be very much appreciated pls need it by the end of the day<3
Answers
Answer:
it eather abc or d
Step-by-step explanation:there is a 1 in 4 chan of getting it correct so 25 percent chance good luck i dont know it lol
Answer:
x - 2y > -4
............
Seth deposited $40 in a savings account that earns 5% interest each year. How much interest will he earn in 1 year?
Answers
Answer:
$2
Step-by-step explanation:
The formula for simple interest is i = p*r*t, where r is the annual interest rate expressed as a decimal fraction. Here the principal is $40 and the elapsed time is 1 year. The amount of interest collectible after 1 year is thus:
i = ($40)(0.05)(1) = $2
Answer:
$2
Step-by-step explanation:
Please help me for 21 points.
Answers
Answer:
24.44 percent
Step-by-step explanation:
F=Friday
S=Saturday
P(F or S)= 20/90+22/90-20/90=22/90
22/90 as percentage is 24.44 percent
Answer:
For Friday, 22% of the check in's happened on that day. For Saturday, 24% of the check in's happened on that day. For both days combined, 46.66% of the check in's happened for both.
Step-by-step explanation:
Overall there were 90 check ins. Since 20 happened on Friday, it would be 20/90, which is 22%. Saturday, 22 check ins happened, so it would be 22/90, which is 24%. Overall, between Friday and Saturday, 42 check in's happened, so it would be 42/90, which is 46.66%.
Here you go thanks for your help
Answers
Answer:
Step-by-step explanation:
I'm just going to reply for points lol-