Answer:
Erin made 5.5 dozen cookies.
Step-by-step explanation:
Total cookies made by Kim, Mary and Erin = 24 dozen cookies
Let Erin make cookies = x dozens
Mary made cookies = 2x dozens
Kim made cookies = x+2 dozens
Now, we need to find how many cookies did Erin made.
We can write:
[tex]x+2x+x+2=24[/tex]
Solving the equation we get:
[tex]x+2x+x+2=24\\4x+2=24\\4x=24-2\\4x=22\\x=22/4\\x=5.5[/tex]
So, Erin made cookies = x = 5.5 dozens
Mary made cookies = 2x =2(5.5) = 11 dozens
Kim made cookies = x+2 =5.5+2 = 7 dozens
Therefore, Erin made 5.5 dozen cookies.
3(-4x + 8)=.................
Answer:
-144 or 2 5
Step-by-step explanation:
Answer:
144
Step-by-step explanation:
Identify the slope and y-intercept for the linear equation below.
y = 1/3x+7
Answer:
Slope is 1/3.
Y-intercept is 7.
Step-by-step explanation:
y = mx + b is the slope-intercept form.
m = slope
b = y-intercept
In the equation, y = 1/3x + 7
m = 1/3
b = 7
Therefore, slope is 1/3 and y-intercept is 7.
Hope this helped! <3
Answer:
Slope is 1/3 and the y- intercept is 7
Step-by-step explanation:
Since the equation is y = mx+b, we know that 1/3 is the slope since m represents the slope and b represent the y-intercept, meaning 7 is the answer.
what is one-fourth of 24
Answer:
6
Step-by-step explanation:
One fourth is ÷4
24÷4=6
Answer:
6...? I don't know why you are doing first grade math again...
Step-by-step explanation:
Mrs. Feinstein recorded the weight, in pounds, of each of her 8 great-grandchildren, Her data are shown 45. 52. 31. 27. 38, 60, 44, 55 What is the mean absolute deviation of the data? a 0 pounds b. 9 pounds C 10 pounds d. 44 pounds
Answer:
d
Step-by-step explanation:
363/8 is 45. the nearest to that is 44.
add every number and divide by how many there are
Write the equation of the line graphed below.
Answer:
Because the line has no slope, we can define this line very simply as:
y = 3
I’ll mark you brainliest if you answer
Answer:
A=Pier^2
a=pie2.5^2
a=19.63
A=Pier^2
a=pie2^2
a=12.57
19.63 - 12.57
=7.07
B
(-30i) +(52-30i) express your answer in the form (a+bi)
Step-by-step explanation:
-30i + 52 - 30i
= 52 - 60i.
Here a is 52 and b is -60.
A nan brought a cow for $200 and sold it to gain $50. What was his gain as a percentage of the cost price?
Answer:
25%
Step-by-step explanation:
Given that,
The cost price of a cow, CP = $200
Gain = $50
We need to find the gain percentage of the cost price.
SP = CP + gain
= 50 + 200
= $250
[tex]\text{Gain}\%=\dfrac{\text{Gain}}{CP}\times 100\\\\=\dfrac{50}{200}\times 100\\\\=25\%[/tex]
So, the gain percent is 25%.
Help plz:) photo attached
Answer:
y=5x+25
Step-by-step explanation:
Since the y intercept for the scatterplot is 25, that means that the only equation that matches the graph is y=5x+25
y=5(0)+25
y=0+25
y=25
Rita is hiking along a trail that is 14.8 miles long. So far she has hiked along one-tenth of the trail.
How far has Rita hiked?
Answer:
1.48 miles
Step-by-step explanation:
If the trail is 14.8 miles and Rita has hiked 1/10 of it. Then just multiply 14.8 by 1/10.
14.8 * 1/10 = 1.48 miles.
Answer:
1.48
Step-by-step explanation:
I know the answer is correct
Luke's Auto Wash earned $10 from servicing 2 customers. How many
customers does Luke's Auto Wash need to serve in order to earn $15? *
please answer asap no trolls
Answer:
It would probably be 15 actually
Answer:
3
Step-by-step explanation:
Triangle inequalities.
a-b < c < a+b
13-11<x<13+11
2<x<24
X has to be greater than 2.
The next whole number greater than 2 is 3.
So the smallest whole number for the third side is 3.
What is the slope of the line that passes through
the points (-8, 8) and (8, –5)?
Answer:
-13/16
Step-by-step explanation:
slope = rise/run = (-5 - 8)/(8 - (-8)) = -13/16
Determine whether the following number sentences are TRUE or FALSE.
Justify your answer.
Part B 1/2-5/8-7/9=7/9-5/8-1/2
Answer:
False
Step-by-step explanation:
1/2 - 5/8 - 7/9 = 7/9 - 5/8 - 1/2
Add 5/8 to both sides.
1/2 - 7/9 = 7/9 - 1/2
Factor -1 out of the right side.
1/2 - 7/9 = -1(-7/9 + 1/2)
1/2 - 7/9 = -1(1/2 - 7/9)
1/2 - 7/9 and 7/9 - 1/2 are opposites. Opposites are not equal unless they are both zero.
Answer: False
Find the discriminant of the equation.Then determine the number of real or non real solutions.INCLUDE STEPS/WILL MARK BRAINLIEST ASAP
x^2+4x=-3
PLEASE HELP!! WHAT IS x???
9514 1404 393
Answer:
x = 90 degrees
Step-by-step explanation:
There are several ways to go about this (as is often the case with math problems). Here, we'll use the fact that an inscribed angle is half the measure of the arc it intercepts.
arc DE = 2×∠DFE = 60°
arc EF = 2×∠ECF = 60°
arc CF = 2×∠CEF = 60°
Then arc DEC is ...
arc DEC = arc DE +arc EF +arc FC = 60° +60° +60° = 180°
Angle DBC is half the measure of this arc, so is ...
∠DBC = 180°/2 = 90° = x
Number 11. Find angle GJK
Answer:
It's 22º
Step-by-step explanation:
[tex]5x+8=7x-16\\24=2x\\12=x\\7*12-16=68\\90-68=22[/tex]
Helppp Plzz!!!!!!!!! 20PTS and Brainliest!!!!!!!
Answer: 37.5
Step-by-step explanation:
Use a proportion for this type of problems
What is the solution of the equation? square root b - 17 + square root b = 1?
Answer:
D. No solution
Step-by-step explanation:
correct on edg unit test review, hope that helped!
error
question not used
Just do numbers 1-6,22-24, and 25-26
ill give brainliest for the best answer
work doesn't need to be shown
1. 0.625
2. 0.22222222222
3. 0.43243243243
4. -0.11111
5. 0.54
6. -0.75
22. −2 21/50
23. -4/25
24. -13/20
25. 0.62
26. 7/15
What’s is 9 divided by 3/10
Answer:
30
Step-by-step explanation:
9/(3/10)=9*(10/3)=30
Find (12y + 20y2 – 2) + (-13y2 + y - 10). Write your answer in
standard form.
Answer:
7y²+13y-12
Step-by-step explanation:
20y²+12y-2-13y²+y-10
7y²+13y-12
What is the unit rate of store A?
•$0.75 / notebook
•$0.50 / notebook
•$0.80 / notebook
•None of the above
What is the unit rate of store B ?
•$0.60 / notebook
•$0.30 / notebook
•$0.55 / notebook
•None of the above
Which store has the better deal per notebook? *
•Store A
•Store B
•The unit rate is the same at both stores
STORE B BECAUSE LOW RATES IS BETTER THAN HIGH
Hi Im giving brainlest whoever answer this correctly
Step-by-step explanation:
1.
36
2×18
2×9
3×3 therefore prime factorization is 2²×3²
2.
42
2×21
3×7 therefore prime factorization is 2×3×7
3.
48
3×16
2×8
2×4
2×2 therefore prime factorization is 2⁴×3
4.
27
3×9
3×9 therefore prime factorization is 3³
Please help me answer this :)
Explain your answer
Will give brainiest
Answer:
d. 770
Step-by-step explanation:
35 gallons per min
after 12 mins there is 350 gallons of water
35 x 12 = 420
how much water was in the tank BEFORE the valve was opened
350 + 420 = 770
What is the difference of 30 and -12?
the difference between 30 and -12 is 42
Just answer the one at the bottom
Answer:
10+25=35
Step-by-step explanation:
Answer:
35 degrees Celsius
Step-by-step explanation:
10 + 25 = 35 C
If a person weighs 130 Ibs and they lose 1/10 of their weight.How much weight was lost
Answer:
13 lbs
Step-by-step explanation:
to find 1/10 we divide by 10
This can be found by moving the decimal back by one
So 130/10=13
13 lbs were lost
The person lost 13 lbs of weight.
What is weight?
Weight is the measure of how heavy an object is. Weight is measured in standard customary units. The mass of an object is the amount of material it contains.
Given that, the person weight=130 lbs and he lost 1/10 of his weight.
We need to find how much weight was lost.
Now, weight lost [tex]=\frac{1}{10} \times 130=13[/tex] lbs.
Hence, the person lost 13 lbs of weight.
To learn more about the weight visit:
https://brainly.com/question/10069252.
#SPJ2
the area of rectangular plot of land fenced all round is 2000 sq. yards and the total length of fencing 180 yards. find the length and width of plot
9514 1404 393
Answer:
length: 50 ydwidth: 40 ydStep-by-step explanation:
The perimeter is twice the sum of length and width. Then the sum of length and width is 90 yards. Their product is the area, so we have ...
x(90 -x) = 2000 . . . . where x is length or width
x^2 -90x +2000 = 0 . . . . rearrange to standard form
(x -40)(x -50) = 0 . . . . . . . factor
x = 40 or x = 50
The dimensions of the rectangular plot are 40 yards by 50 yards.