Answer:
Step-by-step explanation:
Let +a+ = number of $1 coins
Let +b+ = number of $.50 coins
--------------
(1) +a+%2B+b+=+80+
(2) +1%2Aa+%2B+.5%2Ab+=+50+
-------------------
(1) +b+=+80+-+a+
Substitute this into (2)
(2) a+%2B+.5%2A%28+80+-+a+%29+=+50+
(2) +a+%2B+40+-+.5a+=+50+
(2) +.5a+=+50+-+40
(2) +.5a+=+10+
(2) +a+=+20
and, since
(1) +a+%2B+b+=+80+
(1) +b+=+60+
There are 20 $1 coins and 60 $.50 coins
check:
(2) +1%2A20+%2B+.5%2A60+=+50+
(2) +20+%2B+30+=+50+
(2) +50+=+50+
Help plz and don’t spam for points
Look I tried ok???? Sorry... =_=
If a^2- b^2 = 648 and (a - b) = 24. What is the value
of (a+b)?
Stacy's Checking Account
This month, Stacy deposits 4 paychecks, each one for $175.
She makes 2 utility payments for $60 each.
She makes another payment for $80.
1 point
DO NOT TYPE IN THE $. It is already included.
Kevin deposits a total of $ type youryanswer...
5^4 = 5 x 5 x 5 = what is the value of 5^4
Answer:
625?
Step-by-step explanation:
Answer:
625 is the value of 5×5×5×5 or 5^4
Help! Picewise function problem
If a client invests $4,000 in a money market account and does not deposit or withdraw any money for the next 30 years, how much money will be in the account at the end of that 30 years?
A)$4,072.49
B)$6,831.14
C)$6,855.72
D)$7,0189.23
Answer:
$6855.72 is the correct answer
Answer:
1.8%
Step-by-step explanation:(1.005[tex](1.005^4)t1.018^t 1+r=1,018 r=0.018[/tex])^t
6 millones restado 300¿
Step-by-step explanation:
6,000,000-300=5,999,700
Answer:
5,999,700 millones
Step-by-step explanation:
Resta 6 ,millones a 300
I need this fast!! Sam scores 4 goals per game. What is the rate unit of this rate?
A. games
B. goals per game
C. 4
D. goals
Answer:
B: goals per game
Step-by-step explanation:
She will atleast score 4 goals per game
km of 2km,1km,2km,3km,3km,6km
Jeff and Marcia own a llama farm. On their farm, they have 240 llamas.
Each llama they sell earns them a $325.00 profit.
If they were to sell three-fifths of their Llamas, how much total profit would they make?
Show your work.
A. $31,200.00
B. $46,800.00
C. $62,400.00
D. $78,000.00
Answer:
Step-by-step explanation:
Determine if the triangles are congruent. If they are, state why.
Darunt by SA
ITS DUE AT 5PM PLEASE I NEED TO GET IT DONE WAY BEFORE. HELP!!
Factorise completely 8p-12pq
Answer: 4p(-3q+2)
Step-by-step explanation:
The hcf (highest common factor) of 8 and 12 is 4 so you would put a 4 in front of the bracket.
Then because it has p in both of the numbers you can put p at the front with the 4.
This looks like 4p so far.
After that, you would have to do -12/4=-3
So then because you don’t have a q at the front you would put it with the -3.
This looks like 4p(-3q) so far.
Then, you would have to do 8/4=2.
And as you have a p at the front, you don’t need one with the 2.
This would look like together as 4p(-3q+2)
I hope this helps it’s quite difficult to explain :)
10 Rotate the point (7, 8) around the origin 90 degrees. State the image of the
point.
A (-7, -8)
B (8, -7)
C (-8,7)
D (8,7)
Answer:
(-8, 7)
Step-by-step explanation:
for 90 degree rotations u switch the numbers and make the first number opposite
Answer:c
Step-by-step explanation:
-8,7
joseph saves 30% of his allowace each week. if he saves 24$ in 5 weeks. how much allowance does joseph recieve in each week
Answer:
$24/5 weeks = $4.80 saved per week.
$4.80 is 30% of what number?.....
4.8=0.3*X....... 4.8/0.3=X ........X=16
So, Joseph receives $16 per week.
Step-by-step explanation:
i need an answer asap!!
Answer:
For every 1 Tablespoon, there are 3 Teaspoons
2.
A rectangular box is 60 cm long and 45 cm wide. Can
an umbrella that is 68 cm long fit inside of the box?
Answer:
well yes if the back sticks out or if its turned like a x / it can go inside
Step-by-step explanation:
Find the radius of the circle given by the equation (x – 5)2 + (y - 3)2 = 225.
Answer:
The radius is 15
Step-by-step explanation:
In the equation, 225 is a square of a radius, so the radius itself is the square root of 225, which is 15.
Answer: the radius is 15
Step-by-step explanation:
2.
The rate of change is constant in the graph. Find the rate of change. Explain what the rate of change means for the situation.
A. –3; value drops $3 every year.
B. –1; value drops $1 every year.
C. [tex]-\frac{100}{3}[/tex]; value drops $100 every 3 years.
D. –100; value drops $100 every year.
Answer:
you take 2 points on the graph
(3,300) and (6,200)
and then you do y2 -y1
x2-x1
you plug in the values
200-300
6-3 = -(100)/(3)
every 3 years the resale of a refrigerator decreases by 100 dollars.
its basically the rate that the price goes down for resale value of a refrigerator
Step-by-step explanation:
Let's take the points displayed on this graph:
(300, 3) (200, 6) and (100, 9).
Our first value in the points represents the amount of money for the resale value of a refrigerator, and the second value represents the number of years after the original purchase. So, as we can see, as the years increase, the value goes down $100 dollars every three years.
3 years after original purchase: $300
Increase years by three, value goes down by $100
6 years after original purchase: $200
The rate of change in this situation means that for every resale three years after the original purchase, the value will decrease by $100.
Janet has 10 pairs of specialty socks, each pair in a different color. Suppose she randomly picks two out of the drawer without looking, what is the probability that the two socks are a matching pair?
Answer:
1/10
Step-by-step explanation:
(3x + 3) (2x − 2)
Please help me
The volume of a rectangular prism is 72 cubic units. If the length of the prism is 6 units, What might the width and height be? how many solution are there?
Explain your answer
Answer:
anything that adds up to twelve like 3 x 4 or 6 x 2 or 12 x 1 so three answers
We want to find the zeros of this polynomial: p(x)= (x-1) (x+3) (2x+1)
Answer:
X=1, x= -3, x= -1/2
Step-by-step explanation:
okay, so you've got your zeros right here actually. it's very simple, so I'll give you the reader's digest: SET THEM ALL TO ZERO
x-1=0 add your one, so that's x=1
x+3=0, subtract your 3, so that's x= -3
the last one is tricky: 2x+1=0, 2x= -1, but you can go further. divide your two, and you're left with x= -1/2
I hope this helps!!!
The simple interest on an investment of $3600 over 2 years is $504. Find the interest rate to the nearest one decimal place.
Answer:
7%
Step-by-step explanation:
Given data
Principal= $3600
Time= 2 years
SImple interest= $504
The expression for the simple interest is given as
SI= PRT/100
We want to find the rate R
504= 3600*R*2/100
cross multiply'
504*100= 3600*R*2
50400= 7200R
divide both sides by 7200
R= 50400/7200
R= 7%
Hence the rate is at 7%
Find the missing values in the ratio table. Then write the equivalent ratios. (pls help me fill out the rest!)
Step-by-step explanation:
[tex] \frac{6}{2} = \frac{3}{1 } = \frac{12}{4} = \frac{15}{5} \\ [/tex]
what is the mean median mode range of 3,14,7,12,4,9,16,4,8,20
First, order the number set from least to greatest:
3 , 4 , 4 , 7 , 8 , 9 , 12 , 14 , 16 , 20
Mean: You find the mean by combining all the terms, and dividing by the amount of the terms there are in the number set:
(3 + 4 + 4 + 7 + 8 + 9 + 12 + 14 + 16 + 20)/10
(97)/10 = 9.7
Mean: 9.7
Median: You find the median by first ordering the number set from least to greatest, and finding the middle number. Note that if there is a even number of numbers in the set, you find the mean with the two given median digits:
8 & 9 are the median numbers:
(8 + 9)/2 = (17)/2 = 8.5
Median: 8.5
Mode: The mode is the number(s) in the set that shows up the most:
Mode: 4 (shows up one more time than all other numbers)
Range: The range can be found by subtracting the least number from the greatest number in the number set:
Range: 20 - 3 = 17
Range: 17
~
what is the y-intercept of the following function?
Y=2(4/3)x
A.X
B.2
C.3
D.4
Answer:
C.
Step-by-step explanation:
Answer: A) x axis
Step-by-step explanation:
goes through the origin
HELP I HAVE THE ANSWERS ALL I NEED IS TO SHOW THE WORK!!
What is the value of “x” in the diagram below?
Answer: d) 10
Answer:
sinθ= opp/hyp
sinθ= 5/x
sin30= 5/x
x= 5*sin30
x=2.5
Step-by-step explanation:
not 10 the answer is 2.5
which figure could be the result of dilation the trapezoid with a scale factor between 0 and 1
Answer:
1
Step-by-step explanation:
Of a total of 6,000.00, part was invested at a simple interest rate of 8% and part at 7% if the total interest income for one year was $46.00, how many was invested at 7%
Answer: Ok so first 0.05(6000 - x) + 0.07x = 372
300 - 0.05x + 0.07x = 372
300 + 0.02x = 372
0.02x = 72
x = 3600
He invested $3600 at 7% and $2400 at 5%.
Hope this helps have a bless day❤️Step-by-step explanation:
Answer:
Step-by-step explanation:
I think you had a typo where interest should be 460 not 46 because even if the whole 6000 were invested at 7% he would have earned $420 in interest. Also if total investment was switched from 6000 to 600 the 46 in interest would work.
.07x+.08(6000-x)=460
.07x-.08x+480=460
-.01x+480=460
-.01x=-20
x=$2000
which is easy enough to check
2000(.07)+4000(.08)=$460
what is the answer to : classify <1 and <7
Given:
A figure.
To find:
The classification for angle 1 and angle 7.
Solution:
From the given figure, it is clear that a transversal line intersect two parallel lines and forms 8 angles, 4 angles on each intersection.
In the figure, angle 1 and angle 7 are on opposite sides of the transversal line and outer side of each of those two parallel lines.
Therefore, angle 1 and angle 7 are alternate exterior angles.