Alvin's age is two times Elga's age. The sum of their ages is 81 . What is Elga's age?
Answer:
Elga is 27 years old
Step-by-step explanation:
AGE 27
Alvin 2x
Elga x
x+2x = 81
81=3x
81/3=x
x=27
Hope this helps! (:
Answer:
Elga's age is 27.Step-by-step explanation:
x + 2x = 813x ÷ 3 = 81 ÷ 3x = 27Checking:27 + 2(27) = 8181 = 81[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
A packet of flour and a bag of onions have a total mass of 3.25kg.
3 similar packets of flour and 2 similar bags of onions weigh 9kg in all.
What is the total mass of 5 such packets of flour?
Set flour =x and onions=y
We have
{ x + y = 3.25
{ 3x + 2y = 9
x= [tex]\frac{5}{2}[/tex]
y=[tex]\frac{3}{4}[/tex]
Good Luck
Ele:
2.
Find the sum of the digits of each multiple of 9 below.
Sum of digits
9
1 + 8 = 9
9.1 = 9
9.2 = 18
9.3 = 27
9.4 = 36
9.5 = 45
9.6 = 54
9.7 = 63
9.8 = 72
9.9 = 81
Describe a pattern. (Do you think it will continue?)
Answer:
The pattern is that, every time a 9 is added. This pattern continuous forever.
Step-by-step explanation:
9 X 1 = 9
9 X 2 = 18 (9+9)
9 X 3 = 27 (9+9+9)
Etc.
Here is the histogram of a data distribution. All class widths are 1
What is the median of the distribution?
Answer:
it is d
Step-by-step explanation:
thank me later yung bloods
. Strengthening Vinegar: A food chemist has 200 gallons of
vinegar that is 4% acetic acid. How much acetic acid must be
added to get the acetic acid up to 5%?
express each of the following in standard form 0.0 0 0 0 0 0 0 0 0 2 2 1
Carleen has 104 pieces of candy leftover from Halloween. She would like to distribute them evenly to the 8 kids on her block
Answer:
x=104/8
Step-by-step explanation:
If there is 104 candies and 8 people when we divide 104 by 8 we can distribute 13 to each person
Please help fast elementary school all questions
Write the highlighted digit's place and value.
3. 567; ones place 4. 6,327; thousandth place
5. 9,325; hundredth place 6. 8,281; tenth place
Write each number in standard form.
7. 5,000 + 500 + 3; 5,503 8. 2,000 + 300 + 20 + 9; 2,329
9. 4,000 + 600 + 8; 4,608 9. 9,000 + 300 + 70 + 2; 9,372
11. 1,221
We know Sierra has the same numbers in the thousandth and ones place, so keep does numbers: 1,?2?
It also has two more hundreds and 3 fewer ones place: Take the original number; 1,024 (Make sure you keep the numbers) into a equation; (1024+200)-3. First Add as it's in the ( ), then subtract, 1,221
I hope I've helped!
Answer:
#3. ones place. #4. thousands place.#5. hundreds place. #6. tens place. #7. 5,503. #8. 2,329. #9. 4,608. #10. 9,372.
Step-by-step explanation:
#11.sierras seat number 1,221
math geometry (10 points)
Answer:
semoga jawapan ini dapat membantu
Last night, the two dinner specials at Regan's favorite restaurant were salmon filet and steak. The restaurant served 14 specials in all, 7 of which were the salmon filet. What percentage of the specials were salmon filets?
Helpppp pleaseee!
Answer:
50%
Step-by-step explanation:
Find what percent of the specials were salmon filets by dividing the number of salmon filets by the total number of specials:
7/14
= 0.5
So, 50% of the specials were salmon filets.
Find the perimeter. Simplify your answer.
4p-1
4p-1
4p-1
4p-1
The length, L cm, of a line is measured as 13 cm correct to the nearest centimetre, Complete the following statement to show the range of possible values of L
Written in
[tex] \leqslant x < [/tex]
Answer:
12.5≤x<13.5
Step-by-step explanation:
below 12.5, it would round down to 12
13.5 and above, it would round up to 14
check out the attachment
lol hi?
It takes 6 boys 15 days to clean a field on a small plot. How long will it take 8 boys?
Answer:
20 days
Step-by-step explanation:
Time to clean field for 6 boys=15days
Time to clean field for 1 boy=15/6 days
Time to clean field for 8 boys=15/6 × 8 days
Time to clean field for 8 boys=120/6 days
Answer=20 days
Note:if you need to ask any question please let me know.
(x²+4x+4)/(x+2)
algebraic expressions class 8
no spamms
Answer:
x+2
Step-by-step explanation:
[tex] \frac{x ^{2} + 4x + 4 }{x + 2} \\ \frac{(x) ^{2} + 2 \times x \times 2 + (2) ^{2} }{x + 2} \\ \ \frac{(x + 2) ^{2} }{x + 2} \\ \frac{(x + 2)(x + 2)}{x + 2} \\ x + 2[/tex]
1st one to help me with my homework wins brainliest!! Help please!!!
Picture shown!
Write a function to describe the following scenario.
Raw cake batter starts at a thickness of
2 centimeters in a pan but grows at
0.15 centimeters every minute in the oven.
How tall will the cake be after
a certain number of minutes?
Answer:
y = 0.15x + 2
Step-by-step explanation:
Let's say x represents the number of minutes and y represents the thickness of the cake.
No matter what, the cake will start at a thickness of 2 centimeters. Whatever thickness is added on/subtracted starts at 2 centimeters, so y = 2 + or - something.
Next, the batter grows by 0.15 centimeters every minute. This means that every minute, 0.15 centimeters are added to the thickness of the cake. This can be represented by
0.15 * x
Adding these two together, we get
y = 2 + 0.15 * x
y = 0.15 * x + 2
how does the surface area of a cone change if the radius doubles?
how would you solve this algebraically?
Answer:
it changes because the radius has expanded
I own the collector’s edition of my favorite Pokemon card. It used to be worth $120 USD. Now it is worth $150 USD.
What is the percent change?
Answer:
By 25%
Step-by-step explanation:
150-120=30 30/120=1/4 1/4=25%
Check:
120x.25=30 30+120=150
Hope this helps
Whats ur favortie pokemon? (:
divie 8x^4-4X^3/2x^2
Answer:
(4x^2) - (2x)
Step-by-step explanation:
Factor the numerator and denominator and cancel the common factors.
3. If f(x) = 5x^2 find i) f(3)×f(2) and find x if f(x) = 2.
Answer:
mark as brainliest and a like
What is the answer to (6+4)tothe3power-1tothe8power
Hey there!
[tex]\huge\boxed{(6 + 4)^3 - 1^8}[/tex]
[tex]\huge\boxed{= 10^3 - 1^8}[/tex]
[tex]\huge\boxed{10^3}[/tex]
[tex]\huge\boxed{= 10\times10\times10}[/tex]
[tex]\huge\boxed{= 100\times10 }[/tex]
[tex]\huge\boxed{= 1,000}[/tex]
[tex]\huge\boxed{1^{8}}[/tex]
[tex]\huge\boxed{= 1\times1\times1 \times 1 \times 1 \times 1 \times 1 \times 1}[/tex]
[tex]\huge\boxed{= 1 \times 1 \times 1 \times 1}[/tex]
[tex]\huge\boxed{= 1\times1}[/tex]
[tex]\huge\boxed{= 1}[/tex]
[tex]\huge\boxed{1,000 - 1}[/tex]
[tex]\huge\boxed{= 999}[/tex]
[tex]\huge\text{Answer: \textsf{999}}[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\huge\boxed{\frak{Amphitrite1040:)}}[/tex]
Natasha's rectangle measures 4 1/2 units by 2 1/4 units. What is its area?
Answer:
Answer: 49/6units^{2}49/6units
2
Step-by-step explanation:
You can convert from mixed number to fractions as following:
2 1/3=((2*3)+1)/3=7/3 units
3 1/2=((3*2)+1)/2=7/2 units
Then you can calculate the area of the rectangle as you can see below:
\begin{gathered}Area=lenght*width\\Area=7/2units*7/3units\\Area=49/6units^{2}\end{gathered}
Area=lenght∗width
Area=7/2units∗7/3units
Area=49/6units
2
Answer:
[tex]10\frac{1}{8}[/tex]
Step-by-step explanation:
→ Multiply the fractions together
[tex]4\frac{1}{2} *2\frac{1}{4}[/tex]
→ Convert to improper fractions
[tex]\frac{9}{2} *\frac{9}{4}[/tex]
→ Multiply across
[tex]\frac{81}{8}[/tex]
→ Convert back to mixed number
[tex]10\frac{1}{8}[/tex]
divide 6q by q please solve this and help me to get out of this
Step-by-step explanation:
the answer is 6
please mark me brainliest
Answer:
[tex] \frac{6q}{q} \\ \frac{6 \times q}{q} \\ when \: q \: is \: divided \: by \: q \: then \: the \: remainder \: is \: 1 \\ 6 \times 1 \\ 6[/tex]
these are the four terms of the sequence 29,32,35,38. the question is write down the next term
Which option is the correct interpretation of this numerical expression?
55 ÷ 5 − 4
the quotient of 55 divided by 5, decreased by 4
four subtracted from the product of 55 and 5
five less than the quotient of 55 divided by 4
fifty-five divided by the difference of 5 and 4
Answer:
7
Step-by-step explanation:
bc 11×5=55 so you divide it and its 11-4=7 :)
Simplify the following expression:
Answer:
3x^2-15y-10x
Step-by-step explanation:
2x-12x-8y+7y+3x^2
-10x-15y+3x^2
3x^2-15y-10x
Answer:
[tex] = 3 {x}^{2} + 10x - y[/tex] (last option)
Step-by-step explanation:
[tex]2x - 8y + 3 {x}^{2} + 7y - 12x[/tex]
[tex]2x - 12x = (2 - 12)x = - 10x[/tex]
[tex] - 10x - 8y + 3 {x}^{2} + 7y[/tex]
[tex] - 8 + 7y = ( - 8 + 7)y = - 1y = - y[/tex]
[tex] = 3 {x}^{2} + 10x - y[/tex]
Which equation is equivalent to the equation ?
Answer:
wheres the file or question?
Find angle A and angle E
Answer:
m∠A = 50°
m∠E = 50°
Step-by-step explanation:
7x - 17 and 2x + 8 are same side exterior angles. They have a sum of 180°.
7x - 17 + 2x + 8 = 180
9x - 9 = 180
9x = 189
x = 21
∠A and 7x - 17 are supplementary. ∠E and 2x + 8 are vertical angles.
m∠A + 7x - 17 = 180
m∠A + 7(21) - 17 = 180
m∠A + 147 - 17 = 180
m∠A + 130 = 180
m∠A = 50
m∠E = 2x + 8
m∠E = 2(21) + 8
m∠E = 42 + 8
m∠E = 50
c. Draw the rotation of Pentagon ABCDE around C clockwise by an angle of 150
degrees. Tracing paper and a protractor may be useful.
E
D
B
-
The temperature at 4:00 p.m. was -6 °C, and then it fell by 7 °C. Which expression represents the new temperature? .
Proteins consist of monomers of glucose bonded together in a variety of ways and can function as energy, enzymes, and transport.
Proteins function as storage, movement, and defense and are diverse due to the arrangement of the nucleic acids.