2.8 x 10^3=
What is the answer
Answer:
9.24
Step-by-step explanation:
solve for b. ab + c = d.
(d - c)/a
a + c/d
a/(c-d)
Answer:
you are super nice to let me do this
Step-by-step explanation:
thank you, tgbrrhrbrtbrtrtbrlhixtrdfybvnbjhjgtfugfg...
- Audrina
ANWSERRRR NOW PLEASE
two more than twice a number is less than negative eighteen solve for the
Answer:
2x+2<-18
Step-by-step explanation:
First subtract 2 from both sides to get 2x<-20
Then divide both sides by 2 to get x<-10
If the temperature at 7:00 am was - 7 degrees C and the temperature rose
8 degrees C during the morning, what was the temperature by noon?
Answer:
Temperature in noon = 1°C
Step-by-step explanation:
Given:
Temperature on 7:00 Am = -7°C
Temperature rose = 8°C
Find:
Temperature in noon
Computation:
Temperature in noon = Temperature on 7:00 Am + Temperature rose
Temperature in noon = -7°C + 8°C
Temperature in noon = 1°C
HELPP PLS I BEG PLSSSS I BEG AHHH
Answer:
1. correct (3+2) x 5 is 5 squared
2. 125 5 cubed is 125
3. 50 10 squared and divided by 2 is 50
Step-by-step explanation:
1. is correct
2. 5x5x5
=25x5
=125
3. 10x10=100
100/2
=50
Hope this helps :)
Answer:
(3+2)*5 ---------> 5 squared
5 cubed --------> 125
10 squared divided by 2 ---------> 50
Step-by-step explanation:
First of all, you don't need to beg. It's all right. You got this!
This question is asking us to simplify what is on the left and match it to the right.
(3+2)*5
5*5= 25
5 squared is 5*5 which is equal to 25
5 cubed is 5*5*5 which is equal to 125
10 squared divided by 2
10*10= 100
100/2= 50
Hope this helps!
What is 3/4 times 1/8=
Answer:
The answer should be 3/22.
Step-by-step explanation:
To multiply the fractions, multiply the numerators and denominators separately.
3 times 1 over 4 times 8,
Multiply straight across,
Answer should be 3/22
The 3/4 times 1/8 equals 3/32.
To calculate the product of fractions, you multiply the numerators together to get the numerator of the result, and multiply the denominators together to get the denominator of the result.
For 3/4 times 1/8:
Numerator: 3 × 1 = 3
Denominator: 4 × 8 = 32
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What is the area of the flower bed? (Approximate pie to be 3.14)
Whats the value of x? 2−(3x−4)=2x−9
Answer:
x=3
Step-by-step explanation:
Use pemdas!
First use distributive property to get rid of the parenthesis, by multiplying 2 by 3x and -4. Then combine like terms and use inverse operations to simplify each side until you get it down to just x! Hope this helped! :)
Find the slope of the line that passes through (3, -7), (1, -2).
Answer:
Slope = -2.5
Step-by-step explanation:
use the formula:
y2-y1/x2-x1
This is my last question for the day please help
Answer:
B: billie's solution is incorrect since she didnt
subtract 36 from both sides
Step-by-step explanation:
on the second step, she added 36 on the right.
This is incorrect because when changing one
side on an equation you must change the side
in the same way.
Answer:
B. Billie's solution is right
Find the circumference and area of a circle with radius 6 m. Use the value 3.14.
Answer:
Area = 3.14 * 62 = 36 * 3.14
Circumference = 3.14 * (2 * 6) = 3.14 * 12
factorise the following by grouping pairs (1) a2_9a+3a_27
Answer:
13a_29
Step-by-step explanation:
group like terms
help me please , I’ll appreciate it !!
6, this is because FG + GH = FH, so 8+ GH=14, and 14-8=6
1. Alex weighs 5443 grams more than his
younger brother. If his brother weighs
32,658 grams, how much does Alex
weigh?
The distance of a golf ball from the hole can be represented by the right side of a parabola with vertex (-1,8). The ball reaches the hole 1 second
after it is hit, at time 0.
What is the equation of the parabola, in vertex form, that represents the ball's distance from the hole, y, at time x?
y =
(x +
Answer:
Let's suppose that the hole is at y = 0m, where x is the time variable.
we know that:
The vertex is (-1s, 8m).
(i suppose x in seconds and y in meters)
At x = 1s, the ball reaches the hole, so we also have the point:
(1s, 0m).
Remember that the vertex of a quadratic equation y = a*x^2 + b*x + c is at:
x = -b/2a,
then we have:
-1 = -b/2a.
Then we have tree equations:
8m = a*(-1s)^2 + b*-1s + c
0m = a*(1s)^2 + b*1s + c
-1s = -b/2a.
First we should isolate one variable in the third equation, and then replace it in one of the other two:
1s*2a = b.
So we can replace b in the first two equations bi 1s*2a.
8m = a*1s^2 - 1s*2a*1s + c
0m = a*1s^2 + 1s*2a*1s + c
We can simplify both equations and get:
8m = a*( 1s^2 - 2s^2) + c = -a*1s^2 + c.
0m = a*(1s^2 + 2s^2) + c = a*3s^2 + c.
Easily we can isolate c in the second equation and then replace it into the first equation:
c = -a*3s^2
The first equation becomes:
8m = -a*1s^2 - a*3s^2 = -a*4s^2
a = 8m/-4s^2 = -2m/s^2.
Now with a, we can find the values of c and b.
c = -a*3s^2 = -(-2m/s^2)*3s^2 = 6m.
b = 1s*2a = 1s*(-2m/s^2) = -2m/s.
Then the equation is:
y = (-2m/s^2)*t^2 + (-2m/s)*t + 6m
Write 0.42 as a fraction in simplest form.
Answer:
21/50
Step-by-step explanation:
First, convert to a fraction. Since its hundredths place, the fraction is 42/100
Next, simplify. The GCF is 2, so you divide each number by 2, to get 21/50
Answer:
21/50
Have a nice day! :D
Step-by-step explanation:
Write a fraction for which the sum of the numerator and denominator is 44, and the value of the fraction is 5/6.
Answer: [tex]\frac{20}{24}[/tex]
Multiply each sides of the fraction (numerator/denominator) by 4.
5 x 4 = 20, 6 x 4 = 24
Make a fraction out of 20 and 24.
20/24 = [tex]\frac{20}{24}[/tex]
Make sure the fraction is correct, by adding.
20 + 24 = 44
Answer = 44
help, basic polygon !!! in the diagram, BCDE and ACF are straight lines. calculate the value of X and Y.
HELP !!! will mark as brainliest ✓
Answer:
x=160°, y= 62°
Hope this helps
Answer:
∠X = 160°, ∠Y = 62°
Step-by-step explanation:
∠ABD = ∠FDC = 20° [ DF║AB ]
∠X = 180° - ∠FDC
∠X = 180° - 20° = 160°
∠FCD = ∠BCA = 98°
∠Y = ∠CAB [ DF║AB]
∠BCA+∠CAB+∠ABC = 180°
98°+∠CAB+20° = 180°
∠CAB = 180° - 118° = 62° = ∠Y
A new amusement-park ride that lasts 1 minute can have up to 1200 riders per hour. How many riders can ride per minute?
Answer:
20 riders can ride per minute.
Step-by-step explanation:
The picture says to divide to find the number of riders. If we apply this here, we can see that 1200 ÷ 60 is 20.
The reasoning behind this is:
There are 60 minutes in an hour.
If the park ride lasts a minute, then the ride can have 60 rides per hour.
The question states that the ride can have up to 1200 riders per hour, so you need to divide 1200 by 60.
1200 ÷ 60 = 20.
help plz! Find the ratio between:
6 months and 1 year 6 months
Step-by-step explanation:
r u adding them or not if so it will be 2 years:0 months
What is the solution for x in the inequality 4−2x>8
Answer:
X<-2
Step-by-step explanation:
Answer:
x<-2
Step-by-step explanation:
1. Write equation
4-2x>8
2. Combine like terms
-2x>4
3. Divide(and switch ineqaulity sign because the coefficent is negative)
-2x<4
x<-2
Sue uses fabric to make a square frame that is 49.2 cm long. How long is one side of the frame?
Answer:
49.2 cm
Step-by-step explanation:
this is because the sides of the square are all equal
Consider the function. find f(5)
Answer:
f(5) = -1
Step-by-step explanation:
f(5) is x = 5.
When x = 5, y = -1.
Therefore, f(5) = -1
-(y + 2) + 8 = 3
I’m so confused on this, please send help
Don't be worried friend :)
-(y + 2) + 8 = 3
=> -(y + 2) = -5
=> y + 2 = 5
=> y = 3
Chad's baseball team is practicing hitting in the batting cages. The pitching machines pitch baseballs at a rate of 35 pitches in 5 minutes. Chad practiced hitting for 8 minutes.
How many baseballs were pitched to Chad in that time?
Answer:
56 baseball's
Step-by-step explanation:
The number of baseballs were pitched to Chad in 8 minutes is 56.
What is the unit rate?Unit rate can be defined as the ratio between two measurements with the second term as 1. It is considered to be different from a rate, in which a certain number of units of the first quantity is compared to one unit of the second quantity.
Given that, the pitching machines pitch baseballs at a rate of 35 pitches in 5 minutes.
Number of pitches hit in 1 minute = 35/5
= 7
Chad practiced hitting for 8 minutes.
So, the number of baseballs were pitched = 7×8
= 56
Hence, the number of baseballs were pitched to Chad in 8 minutes is 56.
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You receive $50 for your birthday. You buy a book for $14.95 and a baseball cap for $24.95. How
much money did you spend?
Answer:
Step-by-step explanation:
50-14=36
36-24=12
12-1=11
11-0.9=10.1
The total amount of money spent will be $10.1.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that you receive $50 for your birthday. You buy a book for $14.95 and a baseball cap for $24.95.
50-14=36
36-24=12
12-1=11
11-0.9 = $10.1
Therefore, the total amount of money spent will be $10.1.
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STAY UP LATE TONIGHT!!!
MARS WILL BE VISIBLE FROM EARTH!!!
IT WON'T BE LIKE THIS AGAIN, UNTIL 15 YEARS!!!
Answer:
You sure this true
Step-by-step explanation:
How you know
Answer:
OOOOOOOO THANK YOU!!!!!!
Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a 15% alcohol solution.
Which equation can Bruce use to determine how much of the 10% alcohol solution he should use?
ingredients summed = final product
.10 * x ml + .15 (50ml - x) = .12 (50 ml) solve for x the amount of 10 %
.1x + 7.5 - .15x = 6 - .05x = -1.5
x = 30 ml of 10%
50-30 = 20 ml of 15%
Admission to a local aquarium is $10 for
adults and $7 for children. The aquarium
collected $6,549 from the sale of 783
tickets. Find the number of adult tickets and
children tickets that were sold.
First, let's define variables:
A = adults
C = children
Okay, now that's done, time to set up the two equations required to solve:
10a + 7c = 6549
a + c = 783
One way you can solve this is to set up the second equation to isolate a variable. For example,
a = -c + 783
Using this, we can plug it into the first equation and solve for c.
10(-c+783) + 7c = 6549
-3c = -1281
c = 427
Now, use the value of 427and plug it in either equation to solve for a.
a + 427 = 783
a = 356
356 adult tickets were sold, and 427 children tickets were sold.
Solve each equation for the indicated variable. u = -3a - 3 , for a
Answer:
[tex]a = \frac{u + 3}{-3}[/tex]
Step-by-step explanation:
Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operation and stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, add 3 to both sides of the equation:
u = -3a - 3
u (+3) = -3a - 3 (+3)
u + 3 = -3a
Next, divide -3 from both sides of the equation:
(u + 3)/-3 = (-3a)/-3
a = (u + 3)/-3
[tex]a = \frac{u + 3}{-3}[/tex] is your answer.
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