Beth bought 35¢ stamps and 15¢ stamps at the post office. If she purchased 60 stamps at a cost of $17, how many of each kind did she buy?
Answer:
She buys 20 Stamps of $0.15 and 40 Stamps of $0.35.
Step-by-step explanation:
40 x 0.35 = 14
20 x 0.15 = 3
$14 + $3 = $17
40 ($0.35) + 20 (0.15) = 60 stamps
PLEASE HELP!!! ILL GIVE BRANLIEST *EXTRA POINTS* dont skip :((
Answer:
A
Step-by-step explanation:
it just is.
Answer:
a sq rt 38
Step-by-step explanation:
a=6.1
b=5.9
c=6.7
d=6.9
a is closet to dot between 6 and 7
Which of the following best describes the graph below?
Answer:
D
Step-by-step explanation:
this is a one-to-one function because it passes both the vertical and horizontal line tests.
How do I rewrite this number in scientific notation 54.8×103
Answer:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
5.6444 × 10 [tex]x^{3}[/tex]
Step-by-step explanation:
there is your answer i hope this helps you out bud
Answer:
= 5.48 × 104
(scientific notation)
= 5.48e4
(scientific e notation)
= 54.8 × 103
(engineering notation)
(thousand; prefix kilo- (k))
What is 8/9 - 1/18? Please put in fraction form.
:)
Answer:
5/6
Step-by-step explanation:
8/9=16/18
16/18-1/18=15/18
15/18 divided by 3 is 5/6
Answer:
5/6
Step-by-step explanation:
Help ASAP!!!!!!!!!!!!!!!! (25 POINTS + BRAINLIEST)
A rectangular prism has a square base with side length s units. It also has the curious property that the numerical value of the sum of its edge lengths (in units) is equal to the numerical value of its surface area (in square units).
If one edge of the prism has length 8 units and s 6= 8, then s can be written in the form a + √b, where a and b are integers. Find a + b.
Someone please help!!!!!!!!!
Answer:
-32
Step-by-step explanation:
Simply input the x and y values.
New equation:
| 147-(-9) | /(-4) +7
Step one:
147-(-9) = 156
Step two:
|156|/-4 =-39
Step three:
-39+7 =-32
If you evaluate the expression it comes out to -32
C) Work out 3/4 × 5 (Give your answer as the simplest mixed fraction).
Answer: 3 ¾
------------------
Answer:
15/4=3 3/4
Step-by-step explanation:
3 and 3/4 is the awnser
plese help im in 2nd grade and this is really hard all the kids in my class know it but me
Answer:
This isn't in second gradee- x-x
Step-by-step explanation:
Answer: For x such that 0<x<(pie/2), the expression:
[square-root(1-cos^2(x)]/sinx + [square-root(1-sin^2(x)]/cos(x)
is equivalent to,
F. 0
G. 1
H. 2
J. -tan(x)
K. sin2x
The answer is H.
Step-by-step explanation:
Zach's baseball team is raising money for a charity. Zach is tasked with raising at least $250. If represents the amount of money Zach raises, which inequality represents this situation?
a. x>250
b. x<_250
c. x>_250
d. x<250
Answer: x ≥ 250
Step-by-step explanation:
You move right 2 units and left 10 units. You end at (-5, -1). Where did you start?
Answer:
(-13,-1)
Step-by-step explanation:
Moving right means moving positively on the x-axis
Moving left means moving negatively on the x-axis
Follow the equation backwards using the x-coordinate:
Move left 10 units-- -5-10 = -15
Move right 2 units-- -15+2 = -13
Since the y-coordinate did not change, the point you started at is (-13,-1)
You need 660 mL of a 80% alcohol solution. On hand, you have a 40% alcohol mixture. How much of the 40%
alcohol mixture and pure alcohol will you need to obtain the desired solution?
You will need
mL of the 40% solution
and
mL of pure alcohol.
Submit Question
Let a be the amount of 40% solution and b be the amount of pure alcohol that you will use.
You want to end up with a volume of 660 mL, so
a + b = 660
For each mL of solution used, the 40% solution would contribute 0.4 mL of alcohol, and the pure alcohol will contribute 1 mL of alcohol. In the desired solution, you want a concentration of 80% alcohol, so that it contains 0.8 • 660 mL = 528 mL of alcohol, and
0.4a + b = 528
Solve the system of equations above. Subtracting the second from the first eliminates b and lets us solve for a :
(a + b) - (0.4a + b) = 660 - 528
0.6a = 132
a = 220
Then
220 + b = 660
b = 440
So you will need 220 mL of the 40% solution and 440 mL of pure alcohol.
(3x + 7)
(10x – 22)
What does x equal?
Answer:
3x+7=10x-22
We simplify the equation to the form, which is simple to understand
3x+7=10x-22
We move all terms containing x to the left and all other terms to the right.
+3x-10x=-22-7
We simplify left and right side of the equation.
-7x=-29
We divide both sides of the equation by -7 to get x.
x=4.14285714286
Answer:
x=15
Step-by-step explanation:
(10x-22)+(3x+7)=180
A girl is swimming 1 meter below sea level and dives down another .5 meters. How far below sea level is she now?
Answer:
1.5 meters
Step-by-step explanation:
If she is already below sea level by 1 meter and she goes down .5 meters more, she would be 1.5 meters below the sea level.
2. Given 3,989, 825;
round to the nearest
ten thousand, hundreds, and thousands
Answer:
then thousand -3,990,000
hundred -3,989,800
thousands-3,990,000
hope this helped :)
Please help me, if correct get brainliest
Answer:
If I am correct the answer should be graph it !!!! first quadrant
corners
(0,0)
(0,3)
(1.5 , 3.5) intersection
(5,0)
evaluate 6x-4y at those corners
0
-12
-5
+9
makes sense, need big x and small y :)
Step-by-step explanation:
I apologize if I am incorrect I am only in 7th grade but I am pretty intelligent so please try it out!
Given m||n, find the value of x.
t
>m
(7x-1)
(9x+5)
Answer:
Step-by-step explanation:
-13m-or+t m(484m+63t)/63m
I MARK BRAINLEST! WHEN CONVERTING SCIENTIFIC FORM TO STANDARD FORM WITH A POSTIVE EXPONENT YOU MOVE TO THE
O LEFT
O RIGHT
Answer:
To the right
Step-by-step explanation:
3 + (-4)
1/4 X (-1 1/2 - 1/2)
Answer:
35
Step-by-step explanation:
Find the value of the expression 30 – 3 2÷ 3 + 8(2).
Answer:
44
Step-by-step explanation:
30 - 3x2÷3 + 8x2
= 30 - 6÷3 + 16
= 30 - 2 + 16
= 28 + 16 = 44
An elevator steadily descends 500 feet in 20 seconds. How would you express the change in the elevator's height per second?
Answer:
The elevator goes 25 feet per second.
Step-by-step explanation:
The elevator goes 500 feet every 20 seconds so to find how hogh it gets to in 1 second, you have to use the equation 500 divided by 20 to get 25.
Hope this helps idk if it will tho.
Evaluate -5x+8 when x=3
Answer:
-7
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
you do -5 times 3 and get -15 then you add the 8 with -15 and get a -7
What is the value of 5 Z when Z is equal to 2
Answer:
10?
Step-by-step explanation:
5 times Z= 5x 2= 10
Please help!!!
Given that pentagon ABCDE ≈ pentagon FGHIJ, find the measure of angle 1.
A. 99
B. 100
C. 121
D. Cannot be determined
the given angle of 1 is 100
The measure of ∠1 is equivalent to 100°.
What is the difference between upward, downward, leftwards and rightwards translation?Upward translation : [k] units = When the upward translation take's place then, each point will have its y - coordinate shifted upwards by +k units.Downward translation : [k] units = When the downward translation will take place then, each point will have its y - coordinate shifted downwards by -k units.Leftward Translation : [k] units = When the leftward translation will take place then, each point will have its x - coordinate shifted by -k units to the left.Rightward Translation : [k] units = When the rightward translation will take place then, each point will have its x - coordinate shifted by +k units to the right.Given is that pentagon ABCDE ≈ pentagon FGHIJ.
Since the pentagons are similar, we can say that the corresponding angles will be equal. So, we can write -
∠1 = 100°
Therefore, the measure of ∠1 is equivalent to 100°.
To solve more questions on Graph translations, visit the link below -
brainly.com/question/12802031
#SPJ2
find the distance between the points E(3,7) and f (6,5)
Answer:
(2,2)
Step-by-step explanation:
If you graph the points out and count from up or down to left or right, I beleive this is the answer you'll get.
Answer:
3.6056 or square root of 13
Step-by-step explanation:
What is the slope of a line parallel to the line whose equation is 22 - y = 7. Fully
reduce your answer.
Answer:
The slope of the parallel line is 2
Step-by-step explanation:
Parallel lines have equal slopes, so for this question you need to re-format the equation to match a y=mx+b format (slope-intercept form).
2x -y = 7 | Subtract 2x from both sides
-y = 7 + 2x | Multiply by negative one to make y even
y = 7 + 2x | Rearrange the equation to match the formula
y = 2x +7 | 2 is your slope for both parallel lines!
In the diagram below,Ab and De bisect each other.If f is the midpoint dc, AB=20 and De=12, find the value of FC+CB.Show how you arrived at your answer.
Answer:
13
Step-by-step explanation:
AB = 20
DE =12
Since AB and DE bisect each other, therefore:
AC = CB = ½(AB)
AC = CB = ½(20)
AC = CB = 10
Also,
DC = CE = ½(DE)
DC = CE = ½(12)
DC = CE = 6
Since F is the midpoint of DC, therefore:
FC = ½(DC)
FC = ½(6)
FC = 3
Find the value of FC + CB. Plug in the values of FC and CB:
3 + 10 = 13
Find the value of an that makes each number sentence true 2/3 x N = 1
Answer:
1 1/2
Step-by-step explanation:
n= 3/2
Decimal Form:
n= 1.5
Mixed Number Form:
n = 1 1/2
When Michael Jordan retired from basketball he had the third highest scoring total in NBA history at 32,292 points an average 30 points per game for his whole career. However, Kobe Bryant passed Jordan on the list for third place with 33,643 points before COBE retired. If Michael Jordan started playing again, how many games would he have to play to catch cobia for third place? (You must write an equation and show you were to support your answer)
9514 1404 393
Answer:
46 games
Step-by-step explanation:
Let g represent the number of games played at 30 points per game. Then Jordan's total score would be
32292 +30g
We want to find the value of g that makes this total 33,643:
32292 +30g = 33643
30g = 1351
g ≈ 45.03
Jordan would have to play 46 games to regain 3rd place.
_____
After 45 games, Jordan's point total would be 33,642, which is 1 point short of Bryant's record.
I need help with this
Answer:
Not similar
Step-by-step explanation:
Even though
8/2=16/4,
10/3 does not have any relation to the rest. Still make sure if im right, but hope this helps!