Answer:
6 weeks
Step-by-step explanation:
From the question:
Let us represent the number of weeks as x
Andre and Alina are each saving money.
For Andre:
Andre starts with $100 in a savings account and adds five dollars per week
$100 + $5 × x
= 100 + 5x
For Elena
Elena starts with $10 in her savings account and add $20 each week
$10 + $20 ×x
= 10 + 20x
The next step is to equate both algebraic expression for Andre and Elena together
Hence:
100 + 5x = 10 + 20x
Collect like terms
100 - 10 = 20x - 5x
90 = 15x
x = 90/15
x = 6 weeks
Hence, after 6 weeks Andre and Elena would have the same amount of money in their savings account.
rewrite as difference of squares (2x+5)(2x-5)
can i get help on these
Answer:
a) [tex]\frac{32}{21}[/tex]
b) -14
c) -3
d) -96
Step-by-step explanation:
a) The parenthesis indicate multiplication.
b) Minus and plus gives subtraction, and the sign you put behind the number is the sign of the largest number you have (in this case it's 21 since we ignore the -)
c) They already have common denominators, all that's left is to do [tex]\frac{-7 -2}{3} = \frac{-9}{3} = -3[/tex]
d) The parenthesis indicate multiplication.
Good luck!
The length of time of the school field day was decreased
from 100 minutes to 80 minutes. What is the percent
decrease in length of time of the school field day?
Help me out plssss!!!!
Answer: m=6.2t, 148.8 miles
Step-by-step explanation:
to figure out the equation we do 93/15=6.2 and we make it into a equation which is m=6.2t. since we know the butterfly travels 6.2 per hour we do 6.2 x 24 = 148.8
sorry if it's wrong
How do I find x in these equations
Answers:
Problem 9) x = 1Problem 10) x = 3Problem 11) x = 12Problem 12) x = 12==============================================
Explanation:
For problems 9 through 12, we'll use the same set of steps. Recall that any parallelogram has the property that the adjacent angles are supplementary. This means close by angles add to 180. Each of the four diagrams show pairs of adjacent angles.
------------------
In problem 9, we have the following steps
(79x-1) + (102) = 180
79x + 101 = 180
79x = 180-101
79x = 79
x = 79/79
x = 1
------------------
Problem 10 is the same idea
(85) + (30x+5) = 180
30x+90 = 180
30x = 180-90
30x = 90
x = 90/30
x = 3
------------------
Problem 11
(55)+(9x+17) = 180
9x+72 = 180
9x = 180-72
9x = 108
x = 108/9
x = 12
------------------
Problem 12
(3x+12)+(132) = 180
3x+144 = 180
3x = 180-144
3x = 36
x = 36/3
x = 12
Answer:
9. X = 1
10. X = 3
11. X = 12
12. X = 12
Step-by-step explanation:
9.
1) 79x - 1 + 102 = 180
2) 79x + 101 = 180
3) Subtract 101 from both sides
4) 79x = 79
5) x = 1
10.
1) 85 + 30x + 5 = 180
2) 30x + 90 = 180
3) Subtract 90 from both sides
4) 30x = 90
5) x = 3
11.
1) 55 + 9x + 17 = 180
2) 9x + 72 = 180
3) Subtract 72 from both sides
3) 9x = 108
4) X = 12
12.
1) 3x + 12 + 132 = 180
2) 3x + 144 = 180
3) Subtract 144 from both sides
4) 3x = 36
5) x = 12
All answers have been checked by plugging the X back into the equation.
Please help me with this! I will appreciate the help :)
Answer:
D
Step-by-step explanation:
I'm pretty sure it's D
please show work
8) 3n+1 +8n2 – 8n – 7
9. given the function: f(x) =3x-7, find f(-2)
Answer:
D and A
Step-by-step explanation:
8. 1+8n^2-5n-7
8n^2-5n-6
9. -6-7
-13
Plz help meeeeeeeeee
Answer:
Part 4
4 | a. When Peter wrote: I = 275(.8)(12), he wrote the rate of 8% as 0.80 instead of 0.08.
4 | b. The correct interest is $264.
Part 5
5 | a. Isabella multiplied 3000*0.04*6 incorrectly, she probably forgot that she multiplied 3000 into the expression.
5 | b. The correct interest is $720.
Will mark brainliest who ever answers first !!!
Please help
I believe the answer is x=-2
john has a goal to ride his bike 100 miles this summer. john has ridden 12 miles thus far. there are 40 days left of the summer. what average number of miles john must ride per day to reach his goal?
Answer:
2.2
Step-by-step explanation:
100 is his goal, minus what he already did, which is 12, you get 88. Divide 88 with the number of days remaining and then you get the answer.
Answer:
2 1/5 or 2.2 miles per day
Step-by-step explanation:
(100 - 12) / 40 = 2 1/5 or 2.2 miles per day
help please 7th grade math
Answer:chopped almonds and white sugar are correct
PLS GIVE BRAINLIEST
Which expression is a sum of a number and a product?
A. 3 + 5x
B. 5 + x - 3
C. 5(x - 3)
D. 5x
Answer:
its a. rhejhdhrhrjdhr
I’ll mark you brainlist
Answer:
negative
Step-by-step explanation:
Answer:
Negative
Step-by-step explanation:
The line is going down, which means that it is decreasing...which makes it negative.
Hope this helps! :)
Chin canned a number of quart jars and a number of pint jars of tomatoes from his garden. A pint is 16 ounces and a quart is 32 ounces. The number of pints he canned is represented by p, and the number of quarts he canned is represented by q. Which equation models the scenario if Chin canned a total of 1,280 ounces? 1280 plus 16 p equals 32 q 1280 plus 32 q equals 16 p 32 q minus 16 p equals 1280 16 p plus 32 q equals 1280
Answer:
16 p plus 32 q equals 1280
16p + 32q = 1,280
Step-by-step explanation:
A pint = 16 ounces
A quart = 32 ounces
p = number of pints he canned
q = number of quarts he canned
if Chin canned a total of 1,280 ounces?
Total ounces canned = 1,280
Equation:
p × 16 ounces + q × 32 ounces = 1,280
16p + 32q = 1,280
The options:
1280 plus 16 p equals 32 q
1,280 + 16p = 32q
1280 plus 32 q equals 16 p
1,280 + 32q = 16p
32 q minus 16 p equals 1280
32q - 16p = 1,280
16 p plus 32 q equals 1280
16p + 32q = 1,280
The correct answer is
16 p plus 32 q equals 1280
16p + 32q = 1,280
Answer:
16p+32q=1280
Step-by-step explanation:
edge
Patty has 817 marbles. She gave away 529 of her marbles. How many marbles doe she have left? 312 marbles, 298 marbles, or 288 marbles.
Answer:
288 because you just subtract 529 from 817
Step-by-step explanation:
Is the relation a function? {(3,4), (5,0), (2,4), (-5,-5)}
Answer:
Yes
Step-by-step explanation:
You are using the x values once, so it will pass the vertical line test.
{(3,4), (5,0), (2,4), (-5,-5)} the relation is a function.
What is a function?A relation is a function if it has only One y-value for each x-value.
The relation is {(3,4), (5,0), (2,4), (-5,-5)}
Relation on a set may, or may not, hold between two given set members.
Three comma four comma five comma zero two comma four comma minus five comma minus five.
{(3,4), (5,0), (2,4), (-5,-5)} the relation is a function, because in (x,y) the x terms are not repeated.
For every y value there is a unique x value.
Hence, {(3,4), (5,0), (2,4), (-5,-5)} the relation is a function.
To learn more on Functions click:
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1. Stacy's mom is baking treats for Stacy's birthday party. She has 9 eggs to
use for this purpose. A batch of cookies requires one egg and a batch of
brownies requires 2 eggs. How many of each treat can Stacy's mom
bake?
Part A: List three possible combinations of cookies and brownies Stacy's
mom could make for the party.
Part B: Write an inequality to represent the situation.
Part C: Graph the inequality and shade the area where the solutions are.
here is the graph
i learned this in math lol lol
Last year 858 people attended the Middleton County Fair. This year 1,635 people attended. What was the percent increase from last year to this year? (Round to the nearest percent)
Answer:
91%
Step-by-step explanation:
The first step is to calculate the increase
= 1635-858
= 777
Therefore the percent increase can be calculated as follows
= 777/858 × 100
= 0.905× 100
= 90.5 %
= 91%
Hence the percentage increase is 91%
Alexander is a stockbroker he earns 11% commission each week last week he sold $7000 worth of stocks how much did he make last week in commission if he averages the same amount each week how much did he make in commission in 2011
Answer:
the amount that he makes last week and in the year 2011 is $770 and $40,040 respectively
Step-by-step explanation:
The computation of the amount that he makes last week and in the year 2011 is as follows:
= Sale value of the stocks × earning percentage × number of weeks in a year
= $7,000 × 11% × 52 weeks
= $40,040
hence, the amount that he makes last week and in the year 2011 is $770 and $40,040 respectively
We simply applied the above formula so that the correct value could come
And, the same is to be considered
I need help plss help me
Answer:
c
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
I agree with him why is there a certain amount of words you have to put in your answer so you can send it
The table shows the heights and the lengths of several rectangles.
Height (in.) 41 70 21 34 10 92 54 24 10 35 42 66
Length (in.) 21 25 32 12 16 45 40 23 45 35 21 14
What does the correlation coefficient for the data indicate about the strength of the linear
association between the height and the length of these rectangles?
A Weak negative correlation
B Strong negative correlation
C Weak positive correlation
D Strong positive correlation
PLEASE HELP
ILL GIVE BRAINIEST
Answer:
Weak Positive Correlation
Step-by-step explanation: I think that’s correct not 100 percent sure
The strength of the linear association between the height and the length of these rectangles is option A. Weak negative correlation.
What is a Weak negative correlation?In this, the both variables should be response to one another here the relationship is not so strong.
So the correlation coefficient for the data that represent the linear relationship between the height and length should be weak
hence, the option a is correct.
Learn more about correlation here: https://brainly.com/question/1564293
Help !!! will give points
Answer:
bruh what grade r u in 7th? i mean that in a mean way btw i j remember learning abt this and i know what grade i was in
Step-by-step explanation:
ok the bigger triangles third degree thingy (angle...wow) would be 60 bc 50 +70 is 120. 180-120 = 60 yeah yeah yeah
the smaller ones 3rd degree whatever its called... is 50
the bigger triangle is sarahs and the smaller triangle is kristins so A is wrong. b is wrong i think c is wrong so d it is...
BRAINLIEST!!!
STAY SAFE! C O V I D - 1 9 IS REAL!!! IT COULD MEAN YOUR LIFE!!!!!
i need help quick! (number 7, NOT 8!)
Answer:
(-6, 18)
Step-by-step explanation:
5.6/2^3+(12.75+7.45)
Answer: 20.9
Step-by-step explanation:
On the screenshot below
Answer:
20.9 or 209 over 10 or 20 and 9 over 10
Step-by-step explanation:
#1- 2 is what percent of 16 #2- 15 is what percent of 80 #3- 38 is what percent of 200
Answer:
#1 . 12.5%
#2. 18.75%
#3. 19%
Step-by-step explanation:
2 / 16 x 100% = 12.5%
15 / 80 x 100% = 18.75
38 /200 x 100%= 19%
Skye ran rlaps today at soccer practice. Nadine ran five fewer laps than Skye. If Nadine ran eight laps at practice, which of the following equations could be used to find how many laps Skye ran?
r-5= 8
r+5 = 8
r=8-5
-5r=8
Answer:
A. r - 5 = 8
Step-by-step explanation:
If Nadine ran 5 fewer laps than Skye, and Nadine ran eight laps, "r" equals 13.Help with the his question
Answer:
The variable is b books and the equation is gonna be 12b + 16 = 120
Step-by-step explanation:
Which is the BEST estimate of the average rate of change for the function graphed, over the interval 1 sxs 3?
es)
A)
-2
B)
-3
D)
-6
Answer: -3
Step-by-step explanation: just multiply
The best estimate of the average rate of change for the function graphed over the interval 1 ≤ x ≤ 3 is 3.
What is Average Rate of Change of a Function?Average rate of change of a function is defined as the rate at which the value of the function is changing with respect to the change in the input values.
The interval given is 1 ≤ x ≤ 3.
The graph of the function is given below.
It can be clearly seen that,
The y value corresponding to x = 1 is y = f(1) = 2.
So one point on the graph is (1, 2).
The y value corresponding to x = 3 is y = f(3) = 8.
So the other point on the graph is (3, 8).
Average rate of change over 1 ≤ x ≤ 3 = [f(3) - f(1)] / [3 - 1]
= [8 - 2] / [2]
= 6/2
= 3
Hence the best estimate for the average rate of change of function over the interval 1 ≤ x ≤ 3 is 3.
Learn more about Average Rate of Change here :
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Danae is choosing between two jobs. One job pays an annual bonus of $1,500 plus $120 per day worked. The second job pays a annual bonus of $2,500 plus $100 per day worked.
120d + 1,500=100d+ 2,500
d=100
How much will Danae have earned on day 100 at either job?
A: 12,000
B:12,500
C:13,500
D:14,500
Answer:
It is both B and C, you simply just have to add 2 zeros behind both pays per day and then add the bonus
Answer:
The kid above me is wrong, it's C on edge
Step-by-step explanation:
nearly got it Wrong on Edge
Use the expression to complete the statements. (0.5)10 (0.5)10 is the . (0.5) is the of (0.5)10. 10 is the of (0.5)10. A power is another way to write .
Question:
Use the expression to complete the statements.
[tex](0.5)^{10\\[/tex]
________ is the power .
(0.5) is the ________
A ______ is another way to write
Answer:
0.5 is the base
10 is the power
[tex](0.5)^{10\\ = (\frac{1}{2})^{10}[/tex] -- another way to write
Step-by-step explanation:
Given
[tex](0.5)^{10\\[/tex]
Required
Fill ion the gaps
[tex](0.5)^{10\\[/tex] is pronounced as; 0.5 raise to the power of 10
From the above statement, we can deduce the following:
0.5 is the base
10 is the power
Lastly, another way to write [tex](0.5)^{10\\[/tex]
Express 0.5 as a fraction
[tex](\frac{5}{10})^{10}[/tex]
Simplify the fraction
[tex](\frac{5/5}{10/5})^{10}[/tex]
[tex](\frac{1}{2})^{10}[/tex]
Hence:
[tex](0.5)^{10\\ = (\frac{1}{2})^{10}[/tex]