Answer: 12
Step-by-step explanation:
From the question, we are informed that Joakim is icing 30 cupcakes and that he spreads mint icing on 1/5 of the cupcakes. This means that he spreads 1/5 × 30 = 6 cupcakes.
After spreading 6 cupcakes, he will have: 30 - 6 = 24 cupcakes left. We are told that he spreads chocolate on 1/2 of the remaining. This means that he spreads chocolate on 1/2 × 24 = 12 cupcakes.
Therefore, he will have 12 left
= 24 - 12
= 12
Therefore, the rest that'll get vanilla icing will be 12 cupcakes
Joey wants to earn an A on his report card. So far he has taken 3 exams and has one
more to go. On the first three exams, Joey scored 88%, 92%, and 84%. What does Joey
need to score on the last test to have an average of 90% for the 9 weeks?
Answer:
96%
Step-by-step explanation:
To have an average of 90 for 4 exams, you know that the sum of the scores on all 4 exams would be 90 * 4 = 360. The sum of the first three scores is 88 + 92 + 84 = 264.
The last thing you have to do is 360 - 264 = 96 because then you know the score he has to get is 96 for an average of 90 on all four exams.
In ΔUVW, w = 9 cm, v = 2.2 cm and ∠V=136°. Find all possible values of ∠W, to the nearest 10th of a degree.
Complete Question
In ΔUVW, w = 9 cm, v = 22 cm and ∠V=136°. Find all possible values of ∠W, to the nearest 10th of a degree.
Answer:
16.5°
Step-by-step explanation:
In ΔUVW, w = 9 cm, v = 22 cm and ∠V=136°. Find all possible values of ∠W, to the nearest 10th of a degree.
We solve using Sine rule formula
a/sin A = b/sin B
We are solving for angle W
∠V=136°
Hence:
22 /sin 136 = 9 /sin W
Cross Multiply
22 × sin W = sin 136 × 9
sin W = sin 136 × 9/22
W = arc sin [sin 136 × 9/2.2]
W = 16.50975°
W = 16.5°
Find the slope and y-intercept.
Answer:
slope: 1 y intercept is -5
Step-by-step explanation:
Answer:
slope is 4/5 and yintercept is -5
Step-by-step explanation:
Write one true inequality AND one false inequality.
Answer:
a+1.5>6 correct
Step-by-step explanation: -a+1.5>-6 incorrect
2 things.
1. WHAT DO I DO IM BLEEDING FROM MY HEAD-
2. Can someone help me with khan academy qwq it’s due Sunday and I’m trying to sleep on the weekend as much as possible-
Answer:
B
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
-( 6k + 5 ) =
Please help
Answer:
-6k-5
Step-by-step explanation:
Distribute parenthesis aka multiple negative and switch the equation sign
Answer:
−6k−5
Step-by-step explanation:
The approximate time between two high tides or
two low tides is?
Answer:
It's (very roughly) 12 hours from one high tide to the next, and of course the same for low tides. That's because the tides produced when the Moon is directly overhead or in the opposite direction are the same. Same with two low tides, since there are two tides a day (both low and high).
Answer:
Because the Earth rotates through two tidal bulges every lunar day, coastal areas experience two high and two low tides every twenty-four hours and fifty minutes. High tides occur twelve hours and twenty-five minutes apart. It takes six hours and 12.5 minutes for the water at the shore to go from high to low, or from low to high.
Step-by-step explanation:
because I said
please mark me brainliest
I have this problem i dont know
Do you?
Multiply 0.625/1 by 1000/1000 to get 625/1000. Reducing we get 5/8
Mary wants to wrap a shirt she bought her son for his birthday. She places it in a box that measures 12 inches long, 8 inches wide, and 6 inches tall.
what is the surface area of the box that Mary wants to wrap?
A. 26 inches squared
B. 120 inches squared
C. 216 inches squared
D. 432 inches squared
Answer:
Step-by-step explanation:
d
Answer:
D, or 432 Inches Squared
Step-by-step explanation:
First we have to find each side
Front = 6 x 12, 72
Side = 6 x 8, 48
Bottom/Top = 12 x 8, 96
Next we multiply each side by 2, since there is 2 sides for each respective surface.
72 x 2 = 144
48 x 2 = 96
96 x 2 = 192
Lastly, we add them all together, since we are finding surface area!
144 + 96 + 192 = 432
Quadrilateral TEAM is rotated - 180 degrees about the orgin
Answer:
I cant draw the image but
Step-by-step explanation:
point E would have to be at (-2, -2)
Answer:
See attached
Step-by-step explanation:
Each point of the quadrilateral changes coordinates as:
(x, y) → (-x, -y)Image T'E'A'M' is added to original drawing
What causes waves? (in Science)
What type of triangle is ABC?
Give reasons for your answer.
I know it's isosceles but I don't know the reasons...
So I'm asking for help.
Thanks!
Answer:
angle A and C are both Equal and sides BC and BA of the triangle are congruent
Step-by-step explanation:
The store is having a sale on 5 and a half pounds of gravel for $11.
What is the unit price?
Round to the nearest cent
Answer:
11/5.5= $2 per pound of gravel
Hope this helped :)
Given that 2 x − 9 y = 22
Find y when x = 7
Give your answer as a fraction in its simplest form.
Answer:
y = -8/9
Step-by-step explanation:
2 ×(7) - 9 y = 22
14 - 9y = 22
9 y = -8
y = -8/9
PLEASE HELP ME!!!!!!
Answer:
6.63
Step-by-step explanation:
Since you are using a right triangle, you are going to be doing the pythagorean theorem. [tex]a^{2} +b^{2} =c^{2}[/tex] where a and b are the legs and c is the slanted side/hypotunse. Let plug it in.
[tex]a^{2} +10^{2} =12^{2}[/tex]
[tex]a^{2}[/tex]+100=144
[tex]a^{2}[/tex]=44
sqr root of 44 is [tex]2\sqrt{11}[/tex] which is about 6.63
4. On the way to the movies, you get pulled over for speeding. The ticket costs $120 plus $20 for every mph above the speed limit you were driving. If your ticket costs $280, how many mph above the speed limit were you driving? *
20x+280=120
120-20x=280
120x+20=280
120+20x=280
Answer: 120+20x=280
Step-by-step explanation:
280-120=160
160/20=8
The correct answer is the last one, 120+20x=280
rationalize the denominator and simplify 1/√5
Answer:
[tex]\frac{\sqrt{5} }{5}[/tex]
Step-by-step explanation:
[tex]\frac{1}{\sqrt{5} }[/tex] multiply each side by [tex]\sqrt{5}[/tex] which comes out to [tex]\frac{\sqrt{5} }{5}[/tex]
Simplify the expression 4.2 - 5 -6.5w
Answer:
−6.5w−0.8
Step-by-step explanation:
4.2+−5+−6.5w
Combine Like Terms:
=4.2+−5+−6.5w
=(−6.5w)+(4.2+−5)
=−6.5w+−0.8
Brainless please
A marine biologist monitors the population of sunfish in a small lake. He records 800 sunfish in his first year, 600 sunfish in his fourth year, 450 sunfish in his sixth year, and 350 sunfish in his tenth year. Using the exponential regression equation (rounded to the hundredths),
1. Predict when the population of sunfish in the lake will be 200.
2. Predict the number of sunfish in the lake in the 25 thyear.
Answer:
Let's use the variable y to represent the number of years passed since the first year.
The population on the first year (y = 0) was 800
The population in the second year (y = 1) was 600.
The ratio in which the population decreased can be calculated as:
R = 600/800 = 0.75
This means that 600 is the 75% of 800, this also means that between the first year and the second year, the population decreased by the 25%
Now let's look at the ratio between the second and third year (y = 2), the population the third year was 450
Now the ratio is:
R = 450/600 = 0.75
Same as before, then we already can see that the population will decrease by 25% each year.
The generic exponential decay equation is:
f(y) = A*(1 - r)^y
where:
A = initial population, in this case, is 800
y = our variable, in this case, represents the number of years
r = the amount that decreases per each unit of our variable, this must be written in decimal form. In this case, we know that the population decreases by 25% each year, and 25% written in decimal form is 0.25
Also, (1 - r) = R, where R is the ratio we found earlier.
To do this, we just divide 25% by 100% to get (25%/100% = 0.25)
Then our equation will be:
f(y) = 800*(1 - 0.25)^y
f(y) = 800*( 0.75)^y
1) We want to predict when the population will be 200.
to do this, we set:
f(y) = 200 = 800*( 0.75)^y
and solve it for y.
(200/800) = 0.75^y
(1/4) = 0.75^y
Now we can use the relationship:
Ln(a^x) = x*ln(a)
Then let's apply Ln( ) in both sides to get
ln(1/4) = y*ln(0.75)
ln(1/4)/ln(0.75) = y = 4.8 years.
This means that 4.8 years after the first year, the population will be around 200.
2) The population in the 25 th year (this is 24 years after the first one, so we take y = 24) is:
f(24) = 800*(0.75)^(24) = 0.80
Around this point, we will have no more sunfish in the lake.
WILL GIVE BRAINLIEST Questions 1-2 Linear One sentence explanation
Answer:
YesNoStep-by-step explanation:
The first table represents a linear function because:
For each increase in x by 5 points we have increase in y by 10 pointsThe second table is not linear as:
For the first two steps of x by 4 points we have increase of y by 8 points but for the rest of the steps it is 6 for each 4, therefore not linear 3) The half of (√200 + √128 ) is
1. √100 + √64
2. 9√2
3. 18√2
Answer:
Option 2 i.e. 9√2 is the correct option.
Step-by-step explanation:
Given the expression
[tex](\sqrt{200}\:+\:\sqrt{128})[/tex]
The half of [tex](\sqrt{200}\:+\:\sqrt{128})[/tex] can be determined by dividing the expression in half.
Therefore, we need to solve the expression such as
[tex]\frac{\left(\sqrt{200}\:+\:\sqrt{128}\:\right)}{2}[/tex]
as
[tex]\sqrt{200}=\sqrt{100\times 2}=\sqrt{100^2\times \:2}=10\sqrt{2}[/tex]
[tex]\sqrt{128}=\sqrt{64\times 2}=\sqrt{8^2\times \:2}=8\sqrt{2}[/tex]
so the expression becomes
[tex]\frac{\left(\sqrt{200}\:+\:\sqrt{128}\:\right)}{2}=\frac{10\sqrt{2}+8\sqrt{2}}{2}[/tex]
Add similar elements: [tex]10\sqrt{2}+8\sqrt{2}=18\sqrt{2}[/tex]
[tex]=\frac{18\sqrt{2}}{2}[/tex]
Divide the numbers: 18/2 = 9
[tex]=9\sqrt{2}[/tex]
Therefore, we conclude that:
[tex]\frac{\left(\sqrt{200}\:+\:\sqrt{128}\:\right)}{2}=9\sqrt{2}[/tex]
Hence, option 2 i.e. 9√2 is the correct option.
Given: triangle LNK, m of angle NLK =72 degrees. m of angle N=58 degrees. MP is perpendicular bisector of side LK and intersects it at point M and side NK at point P. if Pk=12 in the following image, find the measure of angle LKN.
Answer:
50°Step-by-step explanation:
Given triangle LNK
m∠NLK = 72°m∠LNK = 58°m∠LKN = ?Interior angles sum to 180°
m∠NLK + m∠LNK + m∠LKN = 180°72° + 58° + m∠LKN = 180°m∠LKN = 180° - 130°m∠LKN = 50°12 more than 8 times a number m
Answer:
8m+12 would be the equation.
Step-by-step explanation:
how to solve this one
Answer: x=4, y=-2
Step-by-step explanation:
we can use the elimination method to eliminate one term to find x. Let multiply the top system by 4 then add the second system to eliminate the variable.
4(3x-y=14)
12x-4y=56
5x+4y=12
17x=68
x=4
Since we know x=4, let plug this back in to one of the system to find y.
5(4)+4y=12
20+4y=12
4y=-8
y=-2
A section of land measuring 2 2/5 acres is divided equally among three brothers. How many acres will each brother receive? *
Answer:
12/15 acres of land
Step-by-step explanation:
Total measure of land = 2 2/5acres
Total brothers = 3
Amount of acres each brothers will receive = Total measure of land/Total brother
Amount of acres each brothers will receive = (2 2/5)/3
Amount of acres each brothers will receive = 2 2/5 ÷ 3
Amount of acres each brothers will receive = 12/5 ÷ 3
Amount of acres each brothers will receive = 12/5 * 1/3
Amount of acres each brothers will receive = 12/15
Hence each brother will receive 12/15 acres of land
How do you write 2.78 x 103 in standard form?
Answer:
Do 2.78×103 = 286.34
Step-by-step explanation:
In standard form:
200+80+6+0.3+0.04
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AND PLEASE MARK ME AS "BRAINLIEST" ANSWER
HOPE IT HELPS YOU
A rectangular fish tank has a base that is 3 inches
by 7 inches. How much water will it take to fill the
tank to a depth of 5 inches?
99 cubic inches
B
105 cubic inches
15 cubic inches
D
142 cubic inches
Answer:
B.105
Step-by-step explanation:
To solve you have to find the volume
The equation is length*width*height=volume
7*3=21
21*5=105
help i will brain list
Answer:
B
Step-by-step explanation:
Just by looking at it, you could easily decide that it would either b B or C because the numbers did not change.
So I would say that it is B because it eliminates the negative right away.
Commutative property is when you change the order of the numbers the answer would not change.
Find the surface area
7 cm
6 cm
12 cm
4 cm
A)210 cm^2
B)220 cm^2
C)230 cm^2
D)240 cm^2
Answer:
The surface area is 240 cm^2
Step-by-step explanation:
The surface area is the sum of all the areas of the shapes present
we have two rectangles of measure 7 cm by 12 cm
A base rectangle of 4 cm by 12 cm
Two side triangles of base 4 cm and height 6 cm
Area of the rectangles is l * b
Area of the triangles is 1/2 * b * h
Thus, we have that;
(7 * 12) * 2 ) + 2 * (1/2 * 4 * 6) + (4 * 12)
= 168 + 24 + 48 = 240 cm^2
x= steps y= number of blocks
Someone please help
Step-by-step explanation:
Equation is missing, without the equation to go with the table, you can't find y.
