Miko walked a distance of 1.60 km in 30 min. Find her average speed in m/s.
Distance travelled = 1.6km = 1600m
Time taken = 30min = 30*60 = 1800s.
speed = distance/time = 1600/1800 = 0.89m/s
14a = 11 find a needs to be simplified
Answer:
a = 11/14
Step-by-step explanation:
14a / 14 == 11 / 14
a = 11 / 14
a = 11/14
Hope this Helped
Brainliest is appreciated.
Find the exact length of the third side.
60
45
3
How many solutions does the following equation have?
3x + 9 = 3(x+3)
A Many Solutions
B
Infinite Solutions
C One Solution
D No Solution
Plz help
Answer:
its D no solution
Step-by-step explanation:
5x-5<5(x-4) true, never true, or sometimes true?
Answer: never true
Step-by-step explanation:
-24 = -3w +21 what is w?
Answer:
w=15
Step-by-step explanation:
Calculate the distance between (5, 3) and (-1, 6). Round your answer to the nearest tenth if necessary. (One place after the decimal)
Answer:
[tex] {xy}^{2} = {6}^{2} + {3}^{2} =45 \\ xy = \sqrt{45} = 6.71[/tex]
sorry but I am not sure if this is right :(
The perimeter of a rectangle is 234 meters.
The rectangle is twice as long as it is wide.
What are its length and width?
I am going to show you how easy this is. Once you understand, you will be able to do this forever.
:
Assuming the side of the rectangle are (L) length and (W) width, the perimeter:
2L + 2W = 234
:
"the rectangle is twice as long as it is wide,", the equation for this statement:
L = 2W
:
In the first equation, we can replace L with 2W, then we have
2(2W) + 2W = 234
4W + 2W = 234
6W = 234
Divide both sides by 6
W = 234%2F6
W = 39 meters is the width
:
Remember it said the length is twice the width, therefore:
L = 2(39)
L = 78 meters is the length
:
:
Check this by finding the perimeter with these values
2(78) + 2(39) =
156 + 78 = 234
I need answers to these questions would appreciate it
Answer:
the first one is 1.935843 x 10^6
the second one is 4 x 10^7
subtract the two numbers in each question
convert to scientific notation:
if the number is 40,000,000 the scientific notation would be 4 x 10^7 because there are 7 spaces behind the first digit, or the 4
h(n)=2n-5
Find h(-5)
Answer: h(-5) = -15
Step-by-step explanation:
h(-5)= 2(-5) -5
h(-5)= -10-5
2. You go to the store to go shopping. You find a jacket you like that costs $50, but you have a coupon for
30% off. How much will the jacket cost with your coupon?
Answer:
20
Step-by-step explanation:
U subtract the numbers
Answer:
22
Step-by-step explanation:
Subtract the numbers :) hope this helped
IMPORTANT PLEASE I NEED NOW:Find the area of each face of the cube whose volume is 729 cm
Answer:
81
Step-by-step explanation:
square root of 729= 9
9×9=81
Answer:
Step-by-step explanation:
Formula of Volume= [tex]a^{3}[/tex] - a = side
Therefore since the volume is given you just need to find the side.
729=[tex]a^{3}[/tex] = [tex]\sqrt[3]{729}[/tex] = a
= 9 = a
Now you know that 9 is the side, so using that find the area of one face-
Area of a square= 9 x 9 = 81[tex]cm^{2}[/tex]
NEED HELP! WORTH 27 POINTS!!!!!!
Just plug -2 into x
f(-2) = 2(-2)^2 + 4(-2) + 5
Simplify the right side
f(-2) = 8 - 8 + 5
Combine like terms
f(-2) = 5
Charlie had a -$38.00 balance in his checking account. He deposited $126.00 into the account. What is his new balance?
Answer:
$88
Step-by-step explanation:
-38+126=$88
7c + 3 = 6c + 4 is this equation infinitely many solutions or no solution or one solution
It has one answer and that is
C =1
Answer:
1
Step-by-step explanation:
7c +3=6c +4
7c - 6c =4 - 3
c=1
How many terms are in the expression 4a - 2b + 8 - 3a - 4b?
A.13
B.3
C.5
D.9
Answer:5 terms
Step-by-step explanation:
The outside of a rectangular picture frame measures 10 in. by 11 in. and has a 1-in. border. What is the area of the border?
Step-by-step explanation:
Area of the border = Length * Breadth
If the outside measures 10in by 11in with 1-in border, the length of the picture with border = 10+(1+1) * 11+(1+1)
Area of the border = 12*13
Area of the border = 156in²
Note that the border length will be added at both edges of the frames for each length and the width of the frame
Answer:
38
Step-by-step explanation:
(14x + 30)
z
(5x + 66)
Help please
Options:
Given
Addition property of equality
Multiplication property of equality
Division property of equality
Write an equivalent expression( which means simplified)
Distributive property
Answer:
a: given
b: multiplication property of equality
c: distributive property
d: simplified
e: addition property of equality
f. division property of equality
Step-by-step explanation:
step a will always be given because it is starting equation. step b is multiplication property because everything is multiplied by two so you don't have to deal with decimals. step c is distributive because you distribute the -5s in the parentheses. step d is simplified because they combined like terms and nothing changed sides. step e is addition property because you added 5x to both sides. step f is division property because -7 is divided from each side.
Solve for x the triangles are similar
Answer:
x = 13
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{DC}{DU}[/tex] = [tex]\frac{CB}{UT}[/tex] , substitute values
[tex]\frac{11x-13}{60}[/tex] = [tex]\frac{169}{78}[/tex] ( cross- multiply )
78(11x - 13) = 10140 ( divide both sides by 78 )
11x - 13 = 130 ( add 13 to both sides )
11x = 143 ( divide both sides by 11 )
x = 13
What value of x makes the equation true?
Greetings from Brasil...
Let's add all the values on one side and make it equal to the sum of all the other values on the other side
(- X) + (- X) + (- X) + (- X) + (- X) + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = X + X + X + (- 1) + (- 1) + (- 1) + (- 1) + (- 1) + (- 1) + (- 1) + (- 1)
- 5X + 12 = 3X - 8
- 5X - 3X = - 8 - 12
- 8X = - 20 x(- 1)
8X = 20
X = 20/8
X = 5/2or X = 2.5
Evaluate the expression if x = −4, y = 10, z = −9. Expression: x - y - z *
Answer:
Step-by-step explanation:
-4 - 10 + 9 = -14 + 9 = -5
If ax^3+bx^2+ cx+d is divided by (x - 2), the coefficients of quotient are 2,-1, 3 and the remainder
is 4. then the polynomial is
a) 21 +5x² +5.1-2
b) 21 - 5x² + 5x-2
c) 2r-5x² + 5x+2
d) 2x + 5x + 5x+2
Please say the Answer
Step-by-step explanation:
Polynomial = (2x² - x + 3)(x - 2) + 4 = 2x³ - 5x² + 5x - 2. (B)
Ronnie wants to buy a computer table that measures 10 feet by 17 feet. The cost of the table is $16 per square foot. How much will it cost Ronnie to buy the computer table for his study room?
Answer:
Pongamos los datos
supongamos que la sala costo x
si la sala costo x, el comedor costo el doble, osea 2x
luego dice que la sala costo el triple de la mesa, si la sala costo x, la mesa costo x/3
ahora reemplazamos: dice que todo costo 35000
x + 2x + x/3 = 35000
3x/3 + 6x/3 + x/3 = 35000
10x/3 = 35000
10x= 105000
x = 10500
reemplazamos todos los datos
la sala costo x, entonces la sala costo 10500
el comedor costo 2x, entonces 2(10500) = 21000
la mesa costo x/3, entonces 10500/3 = 3500
Step-by-step explanation:
approximate these numbers to 1 dp 2dp and
3dp
4 .03834
24.8845
0.62346
2.3999
Step-by-step explanation:
4.03834
1dp) 4.0
2dp) 4.04
3dp) 4.038
24.8845
1dp) 24.9
2dp) 24.88
3dp) 24.885
0.62346
1dp) 0.6
2dp) 0.62
3dp) 0.623
2.3999
1dp) 2.4
2dp) 2.40
3dp) 2.400
1 d.p:
4.03834 = 4.0
24.8845 = 24.9
0.62346 = 0.6
2.3999 = 2.4
The 1 d.p is the first number after the decimal point and to write it as 1 d.p you need to round it off.
2 d.p:
4. 03834 = 4.04
24.8845 = 24.88
0.62346 = 0.62
2.3999 = 2.40
The 2 d.p is the second number after the decimal point.
3 d.p:
4.03834 = 4.038
24.8845 = 24.885
0.62346 = 0.623
2.3999 = 2.400
The 3 d.p is the third number after the decimal point.
Mark is 5 years older than Juan, who is X year old. Write an expression for Mark's age.
Answer:
y = x+5 where y is Mark's age
Step-by-step explanation:
Hi there, to answer this problem, you need to really think about what it is asking. In saying that mark is 5 years older than Juan, we know it is going to involve addition. Then, you simply need to think about the relation to Juan's age. In this case, Mark is older so you add to it. Hope this helped!
Write your answer in simplest form.
HELP
Answer:
[tex]\frac{3}{16}[/tex]
Step-by-step explanation:
We do the division first because of PEMDAS.
Apply the fraction division rule: [tex]\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}[/tex]
Therefore,
[tex]\frac{5}{8}-\frac{1}{4}\div \frac{4}{7}=\frac{5}{8}-\frac{1}{4}\times \frac{7}{4}[/tex]
Multiply the two fractions:
[tex]\frac{5}{8} -\frac{1\times \:7}{4\times \:4}[/tex]
[tex]\frac{5}{8}-\frac{7}{16}[/tex]
The LCM of the denominators (8 and 16) is 16.
Adjust fractions:
[tex]\frac{10}{16}-\frac{7}{16}[/tex]
Subtract:
[tex]\frac{10-7}{16}[/tex]
[tex]\frac{3}{16}[/tex]
8=8p+13−3p please help
Answer:
-1=p
Step-by-step explanation:
8=8p+13-3p
8-13=8p-3p
-5=5p
-5÷5=5p÷5
-1=p
NO SPACES AND NO DECIMALS
Happy Paws charges
$20.00 plus $4.00 per hour
to keep a dog during the day. Woof Watchers charges
$9.00 plus $5.00 per hour.
Complete the equation and solve it to find for how many hours the total cost of the services is equal. Use the variable x to represent the
number of hours.
Answer:
Happy paws
y = 20 + 4x
Woof watchers
y = 9 + 5x
x = 11 hours
Step-by-step explanation:
Let
Number of hours = x
Total cost = y
Total cost = fixed cost + variable cost
The equations are:
Happy paws
y = 20 + 4x
Woof watchers
y = 9 + 5x
solve the equation to find for how many hours the total cost of the services is equal.
Equate total cost of both services
20 + 4x = 9 + 5x
Collect like terms
20 - 9 = 5x - 4x
11 = x
x = 11 hours
Check:
Happy paws
y = 20 + 4x
= 20 + 4(11)
= 20 + 44
= 64
Woof watchers
y = 9 + 5x
= 9 + 5(11)
= 9 + 55
= 64
In the diagram, the parallel lines m and n are cut by the transversal line t. Which angles are congruent? HELP ASP.
Answer: Angle 2 and Angle 8
:)
Step-by-step explanation:
Answer:
2 and 8
Step-by-step explanation:
Tommy, Ali, and Jack each have a band. Tommy’s band has won three less awards then Ali. Jacks band has won twice as many bands as Tommy. They have a total of 23 awards. Find the number of awards each persons’ band has won.
Answer:
Tommy's band won 5 awards, Ali's band won 8 awards and Jack's band won 10 awards.
Step-by-step explanation:
Let the number of awards Tommy won be x.
Number of awards Ali won -> x+3
Number of awards Jack won -> 2x
[tex]x+x+3+2x=23[/tex]
[tex]4x+3=23[/tex]
Subtract 3 from both sides:
[tex]4x+3-3=23-3[/tex]
[tex]4x=20[/tex]
Divide both sides by 4:
[tex]\frac{4x}{4}=\frac{20}{4}[/tex]
[tex]x=5[/tex] (Tommy)
[tex]5+3=8[/tex] (Ali)
[tex]5\times2=10[/tex] (Jack)
Answer: Tommy won 5 awards. Ali won 8 awards. Jack won 10 awards.
Step-by-step explanation:
First give each person a variable:
Tommy = y
Ali = a
Jack = x
Then figure out the equations:
Tommy won 3 less awards than Ali, so the equation would be (y = a - 3).
Jack won twice as many awards as Tommy, so the equation would be (x = 2y)
All three won a total of 23, so that would be (23 = y + x + a)
Next, plug in (2y) into the (x) of (23 = y + x + a)
This would result in (23 = 3y + a)
Then you would plug in (a - 3) into (y)
This would result in (23 = 4a - 9)
Solve for a: (a = 8)
Now that you know (a = 8), plug that into the first equation (y = a - 3) to find (y).
Answer: (y = 5)
Use (y = 5) and plug it into the second equation (x = 2y) to find (x)
Answer: (x = 10)
Answers:
a = 8
y = 5
x = 10
