Answer:
Zelie should have divided both numbers by 14
Step-by-step explanation:
Given
[tex]Actual = 28[/tex]
[tex]Measured = 14[/tex]
Required
Spot and correct Zelie's mistake
[tex]Zelie = \frac{28 - 7}{14 - 7} = \frac{21}{7}[/tex]
Scale is calculated as:
[tex]Actual = Measured * Scale[/tex]
[tex]28 = 14 * Scale[/tex]
Divide 28 and 14 by 14
[tex]28/14 = 14/14 * Scale[/tex]
[tex]2 = 1 * Scale[/tex]
[tex]2 =Scale[/tex]
[tex]Scale = 2[/tex]
Notice at this point:
[tex]28/14 = 14/14 * Scale[/tex]
Both sides were divided by 14.
Hence, option A answers the question.
Answer:
A. Zelie should have divided both numbers by 14.
Explanation:
I took the quiz and got it right.
Hope this Helps!
One week, seventy-two percent of the animals that cam to a veterinary hospital were dogs. If there were 230 animals total, how many were dogs?
Answer:
166/230 or 83/115
Step-by-step explanation:
72/100 converted to ?/230
100 to 230 is 2.3*100
so 72*2.3=165.6
166/230 simplify 83/115
1 What is the nature of the roots of the quadratic equation if the value of its discrimman
is zero?
The roots are not real
o the roots are rational and not equal
b. The roots are irrational and not equal d the roots are rational and equal
2. Whal is the ans of symmetry of the parabola y
Answer:
If d is zero, both roots are rational and equal.
Step-by-step explanation:
Quadratic Equations
The standard representation of a quadratic function is:
[tex]f(x)=ax^2+bx+c[/tex]
where a,b, and c are constants.
Solving with the quadratic formula:
[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
The discriminant is defined as:
[tex]d=b^2-4ac[/tex]
The sign of the discriminant defines the nature of the roots of the quadratic equation as follows:
If d is positive, both roots are real and differentIf d is negative, both roots are imaginary and conjugateIf d is zero, both roots are rational and equal.19 A trading card costs $810$ it increases in value the same amount each
year. After 1 year, the value is $1092
Write the equation to represent this
Please help ASAP- thank youUuu
Answer: which one
Step-by-step explanation:
HELP URGENT!!!!!!!!!!!!!!!!!!!
NEEDED IN 10 MINUTES
Answer:
1. 124 degrees 2.141 degrees
3. b then a 4.b then b
Step-by-step explanation:
For triangle ABC with A(2,1) B(6.1) and C (4,4), what are the coordinates of A'B'C' after Rx-axis)?
Answer:
A(2, -1)
B(6 -1)
C(4, -4)
Not my strongest point but thats seems right
I'll mark brainliest.
Find the measure of ∠7
Given:
∠1 is a right angle
∠3 = 37°
∠8 = 62°
Options:
A) 53°
B) 65°
C) 105°
D) 127°
E) 245°
Answer:
The answer to this question is C. 105 degrees.
Step-by-step explanation:
Answer:
B) 65°
C) 10xueu4hfnos drone tmr w8 path info web usi usi indgo igh
14. A linear function is negative for x <-6 and has a y-intercept of 1. If you correctly sketch a graph of the function, at
what point will the graph intersect the x--axis?
a. (0,6)
b. (6,0)
c. (-6,0)
d. (0,-6)
explain how you can use base ten blocks to answer 1.54+2.37
Answer: A 10 base block is worth .1, so you can keep on adding a ten base block to 1.54. 1.54 + (.1 x 23). After that you can use one base blocks to add the .04 to 1.54.
Step-by-step explanation:
The editor of a textbook publishing company is deciding whether to publish a proposed textbook. Information on previous textbooks published show that 20 %20% are huge successes, 30 %30% are modest successes, 30 %30% break even, and 20 %20% are losers. Before a decision is made, the book will be reviewed. In the past, 99 %99% of the huge successes received favorable reviews, 60 %60% of the moderate successes received favorable reviews, 40 %40% of the break-even books received favorable reviews, and 30 %30% of the losers received favorable reviews. If the textbook receives a favorable review, what is the probability that it will be huge success?
Answer:
[tex]Probability = 0.198[/tex]
Step-by-step explanation:
Given
Publish
[tex]Huge\ Success = 20\%[/tex]
[tex]Modest\ Success = 30\%[/tex]
[tex]Break\ Even = 30\%[/tex]
[tex]Losers = 20\%[/tex]
Favorable Reviews:
[tex]Huge\ Success = 99\%[/tex]
[tex]Modest\ Success = 60\%[/tex]
[tex]Break\ Even = 40\%[/tex]
[tex]Losers = 30\%[/tex]
Required
Determine the probability that a textbook is huge success and favorable
To do this, we simply multiply the probability of a textbook being huge success and being favorably reviewed. as follows;
[tex]Probability = 20\% * 99\%[/tex]
[tex]Probability = 0.198[/tex]
On a certain day, the exchange rate was 60 U.S. dollars for 50 euro. How many U.S. dollars were 80 euro worth that day?
URGENT!
Answer: 90 U.S. dollars
If 60 U.S. dollars represwnt 50 euros, we will add.
80 euros represent 90 dollars because: there are 10 more euros than dollars.
Hope this helps!
Answer: 90
50:60 = 5:6
80:90 = +10
You get a large ice-cream cone for $2.99 and a bottle of water for $1.07. You pay with a 10-dollar bill. How much change will you get back?
Answer:
5.94
Step-by-step explanation:
2.49
+1.07
4.06
10.00
- 4.06
5.94
Answer:
$5.94
Step-by-step explanation:
Because
Step one Add $2.99 and $1.07 then you get $4.06
Step two subtract $4.06 and the $10 dollar bill and you get $5.94 and that's you're answer .
Again I like to help people have a nice day!!
Stephanie has completed six homework assignments, which is 40% of the assignments her teacher will give this term. How many assignments will be given?
Answer- 4 am guessing I am not quite sure tho
The 6th graders brought in 56 boxes of tissues 48 pads of loose leaf and 16 rolls of toilet paper. The t acher wants to divide the materials into the greatest amount of containers but wants each container to look the same how many containers can they fill how many of each item will be inside the containers
Answer:
The greatest amount of containers with each container to looking the same is 8 containers.
Step-by-step explanation:
We have:
56 boxes of tissues
48 pads of loose leaf
16 rolls of toilet paper.
To find the greatest amount of containers with each container to looking the same we apply the greatest common factor method
Step 1
We list the factors of 16, 48 and 56
The factors of 16 are: 1, 2, 4, 8, 16
The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, 56
The greatest common factor is 8.
Hence, the greatest amount of containers with each container to looking the same is 8 containers.
A type of superglue has a density of 0.86 g/mL. What is the mass of a 150 mL sample of this glue?
Answer: 129g
Step-by-step explanation:
The formula to calculate mass is given as:
m = d × v
where,
m = mass
d = density
v = volume
Mass = dv
Mass = 150 × 0.86
Mass = 129g
Answer:
Step-by-step explanation:
Explain how drawing triangles can determine the sum of the interior angles of the quadrilateral?
Help please and ty
Answer: each triangle drawing is 180 degrees total, 2 triangles is 360 etc.
Step-by-step explanation:
What does 3(4) mean?
Find the slope of the line through the points (-7, - 12) and (1, -16)
Answer:
y =
-1x/2 – 31/2
Step-by-step explanation:
What is 4÷3/5 Options:6 6 2/5 6 2/3 8
Answer:
[tex]6\frac{2}{3}[/tex]
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
When substances go through chemical changes, which of the following will always happen?
OA. One or more substances will be completely destroyed.
OB. Exactly one new substance will form and one will be destroyed.
OC. One or more substances with different chemical properties will form
OD. A gas will form or a white solid will precipitate.
Answer:
C
Step-by-step explanation:
Answer:
The answer is c
Step-by-step explanation:
Just remember this:
Mass can neither be created or destroyed
Two years ago a company purchased 500 dozen pencils at 40 cents per dozen. This
year, only 75% as many pencils were purchased as were purchased two years ago, but
the price was 20% higher than the old price. What was the total cost of pencils
purchased by the company this year?
Answer:
180$
Step-by-step explanation:
First you have to find out how many pencils the company bought each year which is 6000 since they bought 500 dozens and 75% of 500 is 375 and 20% of 0.40 is 0.08 so the cost for each dozen pencils would be 180$ (Sorry if this is wrong I'm 80% sure)
Does anyone know this
Answer:
AB-DE
Step-by-step explanation:
hi I m from India nice to meet you bro
If the interest rate is $7.50 and the interest rate is 12% in 3 months what is the principal
Answer: $20.83
Step-by-step explanation:
7.50 = P (.12) (3)
7.50 = .36p
___
.36 ____
.36
20.83=p
Which graph represents the equation y = x - 3?
Answer:
https://brainly.com/question/18548766
Step-by-step explanation:
Answer:
The third one, C
Step-by-step explanation:
Slope x is not negative it's a positive slope, therefore the line goes up, not down. It's also because -3 is the y-intercept (a point where it first touches the y axis)
Hoped this helped!
n the pictured triangle, ∠A is 81 degrees and ∠B is 67 degrees. If side a is 34 units long, approximately how long is side b?
Step-by-step explanation:
can u also attach the pictured triangle so we can know it exactly
100+800-100
What is the answer
PLS HELP WITH 1b!!!!!
Answer:
I can see the pdf
Step-by-step explanation:
Answer:
Yes, they do because both of the morning graphs had a better range in grades than the afternoon students.
Step-by-step explanation:
4(-8x + 5) – (-33x – 26) =
Answer:
1x + 46 or x + 46
Step-by-step explanation:
4(-8x + 5) – (-33x – 26)
-32x + 20 + 33x + 26
1x + 46
or x + 46
HELPPP!!!! Which statement correctly describes the lines shown on the graph?
A)
All three lines represent a proportional relationship.
B)
None of the lines represent a proportional relationship.
Only the yellow line represents a proportional relationship.
D
Only the green and pink lines represent a proportional relationship.
Answer:I'm pretty sure its D
Step-by-step explanation:
The vertices of a rectangle are R(-5, -5), S(-1,-5), 7(-1, 1), and U(-5, 1). After translation,
R' is the point (-11, -11). Find the translation rule and coordinates of U'.
(x, y) + (x - 6, y + 6); (-11, 7)
(x, y) (x - 6, y - 6); (-11,-5)
(x,y) → (x + 6, y - 6); (1, -5)
(x, y) + (x + 6, y + 6); (1,7)
Answer:
B. (x, y) (x - 6, y - 6); (-11,-5)
Step-by-step explanation:
Given the vertices of a rectangle are R(-5, -5), S(-1,-5), 7(-1, 1), and U(-5, 1). After translation, the coordinate R' is at the point (-11, -11), in order to know the translation factors used;
Let (x, y) be the translation coordinate added to the original coordinate R to get R'. To get the coordinate (x, y)
(x, y)+(-5, -5) =(-11, -11)
x - 5 = -11
x = -11+5
x = -6
Similarly;
y-5 = -11
y = -11+5
y = -6
Hence the coordinates added to initial vertices is (-6, -6)
To get the new coordinate U' after translation, we will add the coordinate (-6, -6) to the U(-5, 1) as shown;
(x, y) + (-5, 1) = (-6, -6)+(-5, 1)
= (-6-5, -6+1)
= (-11, -5)
Hence the coordinates of U' is (-11, -5) and the translation rule is (- 6+ x, -6+y) where (x, y) is (-6, -6).
Based on the above calculation, it can be seen that (x, y) (x - 6, y - 6); (-11,-5) is correct.
