Answer:
Step-by-step explanation:
first we simplify the ratio
5:8
8/5=1.6
1:1.6 so for every 1 dollar she save she spends 1.6
next we do 1040/1.6=650
1040-650=390
390:650
i hope this helps and is the correct answer pls let me know
1. Girl Scout Troop 321 started with 25 girls and at the end of the year party there were 31 girls. Gabby
shows her work below to find the percent of change for her troop.
31-25
31
6
31
0.1935
Gabby figures that her troop increased by about 19.4%
Describe and then correct the error Gabby made in finding the percent of change.
Pick what Gabby did wrong.
The real percent of change is:
Answer: 24%
Step-by-step explanation:
Since we are informed that the Girl Scout Troop started with 25 girls and at the end of the year party there were 31 girls. The percentage change will be:
= (31 - 25) / 25 × 100
= 6/25 × 100
= 24%
The error that Gabby made was that she used 31 as the base. This is expressed below:
= 31 - 25) / 31 × 100
= 6/31 × 100
= 19.4%
PLS HELP ME I BEG I WILL MARK YOU BRAINLIEST
Answer:
Step-by-step explanation:
Scale factor = 1 : 7
a)Let the length of the house in the scale drawing = x
1:7 :: x : 21
Product of means = Product of extremes
7*x = 1* 21
x = [tex]\frac{1*21}{7}[/tex]
x = 3
Length of the house in the scale drawing = 3 in
b) Height of the real house =y
1 : 7 :: 4 : y
Product of extremes = product of means
1 * y = 7*4
y = 7*4
y = 28
Height of real house = 28 feet
2. What is 9 squared.
a. 3
b. 81
C. 18
O d. 11
Answer:
81
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
9 squared is 81
gghjhgjffjvf
On Monday you read 3 pages.
Tuesday, 3 times that number on Monday,
Wednesday is 3 times the number on Tuesday.
How many pages do you read on Wednesday? (Hint: 38)
pages
Answer:
27 pages
Step-by-step explanation:
Since you read 3 pages on Monday and you read 3 times that number on Tuesday, the equation should be 3*3 to equal 9. Then, since you read 9 pages on Tuesday and 3 times that number on Wednesday, the equation should be 9*3 to equal 27 pages. So, on Wednesday, you read 27 pages in total.
Answer:
27 pages
Step-by-step explanation:
Monday=3 pages
Tuesday=3 pages × 3
=9 pages
Wednesday=9 pages × 3
=27 pages
hope it helps!!!
When xb= 12, y = 8. Find x when y = 12
Answer:
If it is direct proportionality, then y = kx where k is a constant. Use the given information to find k:
8 = k(12) ⇒ k = 8/12 = 2/3
y = (2/3) x
For y = 12,
12 = (2/3) x ⇒ x = (3/2)*12 = 18
x = 18 when y = 12
I hope this helps a little bit.
Explain the difference between the translation of y=x² for the graphs of y=(x+3)² and y=x²+3.
Answer:
y=(x+3)^2 has a vertex at (-3,0), while y=x^2 + 3 has a vertex at (0,3)
Mark me brainliest hope this helps
Step-by-step explanation:
7[tex]\frac{2}3} -5[/tex]
Please help and explain
Answer:
$498.75
Step-by-step explanation:
Why it would be $498.75 is 500 - 25 is 475 then if you do 5% of 475 you get 23.75 and you will add that to the 475 and you will get $498.75.
due in 5 minutes pls help
Answer:
70 ft
Step-by-step explanation:
WHO WANTS SOME BONELESS PIZZA ??
how do I change 2y = 3x + 8 into slope-intercept form?
Pls help me with this work
Answer:
They are similar because they both have like terms in parenthesis.
Step-by-step explanation:
As long as you have like terms, the equation is the same. You never have to worry about the number before the variable being the same. As long as the variable is the same, you have like terms and that is like terms in the equation. TO SUM IT UP: They both have like terms and that is why they are similar.
What is 10x-5y+2x-3y=
Answer: 12x-8y
Step-by-step explanation:
Please help thank youuuuu.
please help me with this angle question :)
Answer:
its an acute angle
Step-by-step explanation:
its an acute angle be cause its small than a right angle
Answer:
angle AED = 70 degrees
angle x = 10 degrees
Step-by-step explanation:
since angle ABD = 110 degrees, major arc AED = 2(110) = 220 degrees
since angle ADB = 40 degrees, minor arc AB = 2(40) = 80 degrees
minor arc BD = 360 - 220 - 80 = 60 degrees
arc AB + arc BD = arc ABD
arc ABD = 80 + 60 = 140 degrees
angle AED = 1/2 (140) = 70 degrees
angle EAD = angle AED because isosceles
arc ED = 2(70) = 140 degrees
arc AE = arc AED - arc ED = 80 degrees
angle x = 1/2(arc AE - arc BD) = 1/2(80 -60) = 10 degrees
Ron is making a triangular frame for a garden using three lengths of wood. He has three pieces of wood that measure 3 feet, 8 feet, and 4 feet in length.
Ron claims that he can make a triangular frame with these three pieces of wood. Do you agree with Ron? Explain your reasoning.
Answer:
Step-by-step explanation:
A side of the triangle must be shorter than the sum of the remaining two sides.
He cannot make a triangle with 3, 4, and 8.
who is This Help me
2) What is the slope in the equation y=2x + 3?
Answer:
2
Step-by-step explanation:
y = mx + b
y = 2x + 3
m is the slope. So of we look in the equation 2 is in the m place so 2 is the slope. Hope this helps, thank you :) !!
If you help, i give brainliest!
Answer:
m<E = [tex]77^{o}[/tex]
Step-by-step explanation:
From the diagram, ΔACE and ΔBDE are similar. So that comparing its angles, we have;
(8x + 4) = (9x - 5)
8x + 4 = 9x - 5
5 + 4 = 9x - 8x
x = 9
Thus,
(8x + 4) = 8(9) + 4 = 76
(9x - 5) = 9(9) - 5 = 76
3x = 3(9) = 27
From ΔACE,
3x + (8x + 4) + m<E = 180 (sum of angles in a triangle)
27 + 76 + m<E = 180
m<E = 180 - 103
m<E = [tex]77^{o}[/tex]
4.) Solve the proportion.
2
9
II
3 k + 1
Answer:
b
Step-by-step explanation:
Sorry if its wrong I hope I helped!!!!
C divided by 5 ? please i need help
Answer:
0.2 coulombs is the answer
4
Question
YA
xy
GRAPH PLEASE !!! HELP
Explica con tus palabras el significado de lim f(x)=7
I need a lot of help please answer right !
Answer:
$16
Step-by-step explanation:
Answer:
Estimate: $16
Exact amount: $15.98
Step-by-step explanation:
To find the estimate amount of money she has left, we will add everything up and subtract it from $45.12.
$7.89 + $21.25 = $29.14
$45.12 - $29.14 = 15.98
Now lets round your answer to $16. Therefore, the estimated amount that she has left is $16. And based on the calculations above, we can see that the exact amount of money she has left is $15.98.
PLEASE HELP I'LL GIVE THE BRAINLEST
Select the correct answer. Which line is the line of best fit for this scatter plot?
Answer:
D
Step-by-step explanation:
Your friend deposits $8500 in an investment account that earns 2.8% annual interest. What is the balance after 8 years when the interest is compounded quarterly? 1
I believe the balance would be $10,601.42
Hopefully that is the right answer
A pyramid and a cone are both 10 centimeters tall and have the same
volume. What statement must be true about the two solids?
A. The vertical cross-sections of the pyramid and cone at the same
width must have the same area,
B. The area of the cross-sections of the pyramid and cone are
multiples of each other,
C. The horizontal cross-sections of the pyramid and cone at the
same height must have the same area
D. The cross-sections of the pyramid and cone are the same shape
9514 1404 393
Answer:
C. The horizontal cross-sections of the pyramid and cone at the same height must have the same area
Step-by-step explanation:
Cavalieri's principle says that solids with corresponding cross sections of the same area will have the same volume. Statement C is the converse of this principle.
Brian buys a computer for £900.
It depreciates at a rate of 2% per year.
How much will it be worth in 2 years?
Give your answer to the nearest penny where appropriate.
Can u guys help me please
1. What % of 240 is 60?
2. .90 is what percent of 120?
3. 24 is 96% of what number?
I need to fill in the blank area models and the numbers I'm supposed to use are the factor and expended forms next to them please help
Answer:
2. x^2 -3x
-x 3
3. x^2 7x
-2x -14
Step-by-step explanation:
Im pretty sure this is right, but I am so sorry if it's not tho
3x2 - 5x + 2
5x² – x-6
Which of the following is the sum of the two
polynomials shown above?
A) 8x2 - 7x - 4
B) 8x² + 7x - 4
C) 8x - 7x² - 4
D) 8x4+ 7x2 - 4
Answer:
This qn is mistake i think so while addind this 2 eqn the ans is 8x2-6x-4