Answer:
first one: 3
second one: b
third one: 3.2
Step-by-step explanation:
first one:
21 x ________ ÷ 3 = 21
rewrite equation:
21 ÷ 3 x ___ = 21
7 x ___ = 21
(21 / 7 = 3)
7 x 3 = 21
second one:
b x h ÷ h = ___
B
third one:
876 x 3.2 ÷ ______ = 876
2803.2 ÷ ___ = 876
(2803.2 / 876 = 3.2)
2803.2 x 3.2 = 876
NOWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
Answer: 60 is the answer.
Step-by-step explanation: We can use the total sum, 180.
To get the missing angle, add the 2 angles, 60 and 60.
60 + 60 = 120.
Then subtract from 180.
180 - 120 = 60.
Hence, 60 is the answer.
Let me know if you have any questions.
~ Lily, from Brainly.
Note to asker: Write this down!
To find 1 missing angle:
A1 + A2 = TA - 180 = X (A1 = Angle1)
Is the answer I pick right
Answer:
Yes
Step-by-step explanation:
I am stugling with algebra (because of zoom classes) and have multiple questions, please answer as many as you can. Thank you!
3x + 7 = 4x X=
x + 2 + 2x = x + 10 X=
x + 3x = x + x + 10 X=
2x + 3 + 3x = x + 11 X=
(oh and PLEASE explain this to me!)
9514 1404 393
Answer:
x = 7x = 4x = 5x = 2Step-by-step explanation:
The general steps are ...
look at what you haverewrite the equation so the variable terms are on one side and the constant terms are on the other side of the equal sign; collect termsdivide by the coefficient of the variableIt is generally convenient to put the variable terms on the side of the equation having the largest (most positive) variable term. You do the rearranging by subtracting the terms you don't want. Any operation is performed on both sides of the equation.
__
1) 3x + 7 = 4x
We observe the largest x-term is on the right, and the only constant term is on the left. We can subtract the x-term 3x to eliminate it from the left side
3x +7 -3x = 4x -3x
Combining like terms gives ...
7 = x . . . . . this is the solution
__
2) x +2 +2x = x + 10
We observe x-terms and constants on both sides of the equation. First of all, we will combine like terms.
3x +2 = x +10
The largest x-term is on the left, so we choose to subtract x (the x-term on the right)
3x -x +2 = x -x +10
2x +2 = 10
We don't want the constant on the left, so we subtract 2.
2x +2 -2 = 10 -2
2x = 8 . . . . . . . . . . combine like terms
Now, we divide by the coefficient of x.
2x/2 = 8/2
x = 4 . . . . . . the solution
__
3) x +3x = x + x + 10
4x = 2x +10 . . . . . . . combine like terms
2x = 10 . . . . . . . . . . . subtract 2x
x = 5 . . . . . . . . . . . . . divide by 2
__
4) 2x +3 + 3x = x + 11
5x +3 = x +11 . . . . . . . . combine like terms
4x +3 = 11 . . . . . . . . . . . subtract x
4x = 8 . . . . . . . . . . . . . . subtract 3
x = 2 . . . . . . . . . . . . . . .divide by 4
_____
Learn to identify and combine like terms. Use addition or subtraction to eliminate terms you don't want. Use multiplication or division to eliminate coefficients you don't want. Whatever you do to one side of the equation must also be done to the other side of the equation. (In the above, we use "subtract ..." to mean "subtract ... from both sides of the equation," for example.)
If x=5 and y=−2, evaluate the following expression:20−5y+2x
Step-by-step explanation:
20−5y+2x
20-5(-2)+2(5)
20+10+10=40
Answer:
20 − ( 5 ) ( −2 ) + ( 2 ) ( 5 )
= 20 − ( −10 ) + ( 2 ) ( 5 )
= 30 + ( 2 ) ( 5 )
= 30 + 10
= 40
Hope it helps
Please mark me as the brainliest
Thank you
How can i Round this answer to the nearest tenth?
11.8
9514 1404 393
Answer:
11.8
Step-by-step explanation:
The number has no digits to the right of the tenths place, so the number is correctly rounded as is.
11.8
4x + 7 = ? (I'm not so good in math so please help)
Answer:
4(x+ 1.75)
Step-by-step explanation:
Answer: 4
i wish that helped
a. Keiko's estimate for the distance the car will roll is 85 cm. What is the percent error in Keiko's estimate? Show your work.
Answer:
I believe it should be 5.882%
Step-by-step explanation:
This is how i got tought to do it
85-80=5
5/85=0.05882
0.05882 times 100=5.882%
and that's your answer hope you get it right.
An isotope of cesium-137 has a half-life of 30 years. If 5.5 grams of cesium-137 disintigrates over a period of 105 years, how many grams of cesium-137 would remain? Round your answer to the thousandths place.
Answer:
0.484 g
Step-by-step explanation:
N/No = (1/2)^t/t1/2
No = mass of cesium-137 originally present
N= mass of cesium-137 at time t
t1/2= half life of cesium-137
t = time taken
N/5.5=(1/2)^105/30
N/5.5=(1/2)^3.5
N/5.5= 0.088
N = 5.5 * 0.088
N= 0.484 g
Which of the following is the correct mapping for shape A and shape B?
Answer:
b. (x , y) -> (-x , y)
Step-by-step explanation:
Reflection over y axis
I don't know anything about this. please explain what this means and how to do it.
Answer:
90
Step-by-step explanation:
you have to multiply A B and C and you should get 90
i think i'm right
Find the value for m
-10 + 59 = 5m = 7 + 3m
Solve the right triangle
Using trigonometry
Answer:
f is 14 And 8 is E
Step-by-step explanation:
so you have to solve the first step of 14 and 8 it is 90 dress angle
The sum of 3 times a number and another number is 10. The bigger number is 5 more than 2 times the smaller number. What are the numbers?
Answer:
7 and 1
Step-by-step explanation:
HELP SOMEONE PLEASE. please please ): For geometry.
Answer:8
Step-by-step explanation:
What inverse operation do you use to solve for m?
11=m - 4
Answer:
I would use addition
Step-by-step explanation:
Since addition is the opposite of subtraction.
Answer:
Addition
Step-by-step explanation You would use addition because you can cancle out the numbers that way
Multiply (x + 2)(x + 3). What is the
product?
A 2x + 5x + 6
B x^2 + 6x + 6
C x^2 + 5x + 6
Solve inequities :
1. )x−2 > −6
2. )35 > −6
3. )3.5n ≤ 7
4. )10 ≤ x+7
Answer:
1, x> -4
2, True
[tex]3.n \leqslant 2[/tex]
[tex]4. 3 \leqslant x[/tex]
Figure ZANY is a square. If ZY = 7x - 3 and ZA = 6x, what is the value of x
Make a table of values with the equation provided. Thanks! :)
Answer:
The answer is in the picture, good luck :)
Step-by-step explanation:
vamsi is X years old.his brother is 3 years elder to him. his uncle is 4 times his age and his aunt is 5 years younger than his uncle.what are the ages of vamis brother, uncle and aunt? what will be the age of his uncle 6 years from now
pls send the ans fast
Step-by-step explanation:
Vamsi is X years old
Vamsi = X
his brother is 3 years elder to him
Brother = X + 3
his uncle is 4 times his age
Uncle = 4X
his aunt is 5 years younger than his uncle
Aunt = Uncle - 5
what will be the age of his uncle 6 years from now
= 4X + 6
what are the ages of vamis brother, uncle and aunt?
Assume Vamis = 15 years
Brother = X + 3 = 15 + 3 = 18
Uncle = 4X = 4 * 15 = 60
Aunt = Uncle - 5 = 60 - 5 = 55
what will be the age of his uncle 6 years from now
Uncle = 4X + 6 = 60 + 6 = 66
PLEASE HELP ASAP!
:(
Answer:
hit the square
Step-by-step explanation:
I'm pretty sure you have to hit the square and then that would be number two
On a snowy winter's eve, two candles are lit at the exact same time. A 18-inch candle and a 21-inch
candle are lit at the exact same time. The 18-inch candle burns 2 inches every hour. The 21-inch
candle burns 3 inches every hour.
Serenity has a toy car collection. She keeps some in a display case and the rest on the
wall.
104
of her toy cars are on the wall, and 74% of her toy cars are in the display
case. What is the total number of toy cars in Serenity's collection?
If 74% are in the display, then 100% - 74% = 26% are hung on the wall.
This means 104 cars is 26% of her collection.
To find the total collection divide the number on the wall by the percentage of the collection:
104/0.26 = 400
The total number of her collection is 400 cars.
Irri is traveling in a group of 888 cat warriors. Each cat needs 444 liters of milk per day to maintain good morale. Mirri has a supply of 969696 liters of milk. Another cat has enough milk to last for 222 days. Which equation can we use to find \greenD{d}dstart color #1fab54, d, end color #1fab54, the total number of days the milk will last?
Answer:
3.25 days
Step-by-step explanation:
Irri is traveling in a group of 8 cat warriors. Each cat needs 4 liters of milk per day to maintain good morale.
The total number of liters for the cat is calculated as:
8 × 4 liters of milk
= 32 liters of milk.
Another cat has enough milk to last for 2days.
= 4 liters of milk × 2 days
= 8 liters
Mirri has a supply of 96 liters of milk.
Total liters of milk = 96 liters + 8 liters
= 104 liters
Which equation can we use to find the total number of days the milk will last?
This is calculated as:
= 104 liters/32 liters
= 3.25 days
How do you graph x<0
Answer:
x < 0 is every point going from -1 to -∞, so it’s basically a block with infinite height and width going from -1 to -∞
Hope this helps!
4768 in standard form?
Answer:
4.768×10^3
Step-by-step explanation:
4768 in standard form:
4.768 *10^3
It already is in standard form.
Which expression represents all the solutions to the inequality
3(2x - 8) > 4x + 26?
Answer:
x > 25
Step-by-step explanation:
3(2x−8)>4x+26
Step 1: Simplify both sides of the inequality.
6x−24>4x+26
Step 2: Subtract 4x from both sides.
6x−24−4x>4x+26−4x
2x−24>26
Step 3: Add 24 to both sides.
2x−24+24>26+24
2x>50
Step 4: Divide both sides by 2.
2x
2
>
50
2
x>25
Graph the equation y + 4 = .
Answer:
just go to Desmos graphing calculators
Step-by-step explanation:
and that all
In which quadrant of the coordinate plane is the point (−7, −2 ) located? *
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
Answer:
Quadrant III
Explanation:
The positives-negatives value rule in quadrants:
Quadrant I = ( + , + )
Quadrant II = ( - , + )
Quadrant III = ( - , - )
Quadrant IV = ( + , - )
find each measure (EH)
Answer:
five hundred yessirhjtffg