Answer:
x=3
y=6
z=2
Z is the number of $20 bill , y is the number of $ 10 bill and x is the number of $ 5bill
Step-by-step explanation:
Let the number of $5 bills be x, number of$10 bills bey and number of $20 bills be z in it.
Then
5x+ 10y+ 20z= 115------A
5x+10y= 75------B
Putting the values from A into B
75+ 20z= 115
20 z= 115-75
20z =40
z= 40/20 = 2
There were 2 bills of $ 20.
Now we are left with 9 bills which are of $5 and $10
so
x+y=9
or x= 9-y------C
Putting C in B
5(9-y) + 10y = 75
45-5y+10y= 75
45+5y= 75
5y= 75-45
5y= 30
y= 6
So the number of $10 bills are 6.
And the number of $5 bills are 3
what is the sum of 43 plus 4
Answer:
47
Step-by-step explanation:
If you add 4 to 43 you get 47 man that was so hard
What is the slope of the line represented by the equation 2x+3y= –12 ?
Answer:
-2/3
Step-by-step explanation:
2x+3y= –12
3y=-2x-12
y=-2/3x-4
m=-2/3
Answer:
-2/3
Step-by-step explanation:
Subtract 3y from both sides and add 12 to both sides: 2x+12=-3yDivide by -3: -2/3x-4=ySlope is -2/3Hope this helps!Whats the slope of the line on the graph (plz answer soon i have way more hw to deal with and i cant be stuck on this all day)
Answer:
-4/12
Step-by-step explanation:
The slope is negative, i did rise over run.
After 10 days Mr. Monasterio had eaten 43 burritos. After 15 days, he had eaten 78 burritos. What is the rate of change? Label your answer with units.
Answer:
7 burritos/day
Step-by-step explanation:
Given data
Initial day =10
Final day =15
Initial burritos consumed=43
Final burritos consumed =78
Let the constant k = rate of change
change in days = 15 - 10 = 5
change in number of burritos = 78-43=35
k = 78-43/15-10
k = 35/5
k = 7
Since k = change in number of burritos/change in days
7 burritos/day
if someone has a 76.88 and a projest is worth 20 percent then what is there final grade
Answer:
Step-by-step explanation:
if you got 100 percent on the project then you would have a 89.55
Answer:
81.50
Step-by-step explanation:
Choose the fraction that is equal to a repeating decimal.
2/3
1/10
1/4
Answer:
2/3
Step-by-step explanation:
2/3 is a repeating decimal of 0.666667
ANSWER FAST FOR BRAINLIEST AND FIVE STARS AND THXS!!!
Answer:
It is B or C I belive HHEHE that rhymed
Step-by-step explanation: Hope dis helped :3
Answer:a
Step-by-step explanation:
100 points to who ever helps me love you so much if u help me
Answer:
Slope: -1/2
take 2 points from the line (3,-2) & (-3,1) and use slope= y2-y1/x2-x1
Hope i helped plz mark brainliest if u want
Step-by-step explanation:
The formula for the area of a trapezoid is A=\frac{1}{2}h(b_1+b_2),A= 2 1 h(b 1 +b 2 ), where hh is the height and b_1b 1 and b_2b 2 are the two bases. Rewrite the formula to solve for hh in terms of A,A, b_1b 1 and b_2.B 2 .
Question
The formula for the area of a trapezoid is A= 1/2h(b1 + b2),
where h is the height and b1 and b2 are the two bases. Rewrite the formula to solve for h in terms of A, b1 and b2
Answer:
h = 2A/b1 + b2
Step-by-step explanation:
Area of a Trapezoid
= 1/2h(b1 + b2)
Rewriting the formula to solve for h, this means making h the subject of the formula
A = 1/2h(b1 + b2)
Cross Multiply
2A = h(b1 + b2)
Divide both sides by b1 + b2
h(b1 + b2)/b1 + b2 = 2A/b1 + b2
Therefore,
h = 2A/b1 + b2
HELP MEEEEE?????!!!!!!
Answer:
8
Step-by-step explanation:
we can write the question out:
2 36
---- x ------
9 1
We can now cross out divide 9 by 9 and 36 by 9:
2 36/9 = 4
---- x ------
9/9 = 1 1
2 x 4
---- ------
1 1
= 8/1
= 8
The average U.S. resident uses 100 gallons of
water per day. The population of the United
States is about 3.23 X 108. About how
many gallons of water do U.S. residents use
each day? Express your answer in scientific
notation.
Answer:3.2300*10^10
Step-by-step explanation:
describe a number x increased by 10
Answer:
x+10 ?
Step-by-step explanation:
the variable is being increased by 10 therefore add 10 to the variable
A scale drawing of a lake has a scale of 1 cm to 80 m. If the actual width of the lake is 1,000 m, what is the width of the lake on the scale drawing? Answers with fractions must be entered at a decimal. For example 1 1/2 would be 1.5 and 1 1/4 would be 1.25.
Answer: 12.5cm
Step-by-step explanation:
From the question, we are informed that a scale drawing of a lake has a scale of 1 cm to 80 m. This can be represented as a fraction of 1/80.
Since the actual width of the lake is 1,000 m, the width of the lake on the scale drawing will be:
= 1/80 × 1000
= 12.5cm
The width of the lake on the scale drawing is 12.5cm.
Help !!What is 0=4+5n?
Answer:
n=-0.8 or-4/5
Good Luck!!!!
Angles A and B are complementary. Angle A is 87°. Find the
measure of angle B.
Answer:
m∠B = 3°
Step-by-step explanation:
Complementary angles when combined will equal 90° in total.
∠A + ∠B = 90
m∠A = 87° {Given}
Plug in 87 for ∠A in the given equation, and solve for ∠B
87 + ∠B = 90
Isolate the variable. Subtract 87 from both sides of the equation:
87 (-87) + ∠B = 90 (-87)
∠B = 90 - 87
∠B = 3°
m∠B = 3° is your answer.
~
Solve.
50 = -2.5x
a. x= 115
b. x= 115
c. x= 20
d. x= -20
Answer:
x=-20
Step-by-step explanation:
50÷-2.5=-20
Answer:
d. x = -20
Step-by-step explanation:
Given 50 = -2.5x, we are told to solve for x, which only involves two steps:
50 = -2.5x
÷-2.5 ÷-2.5
(Division property of equality)
________
-20 = x
x = -20
(symmetric property of equality)
PLEASE HELP!!!!! I NEED TO KNOW THIS!!!!!
Answer:
C
Step-by-step explanation:
Every line shows its increase over 1 unit so the longest line is C
Kayla is building a custom frame using reclaimed wood. She needs the frame to be 14 1/2 inches wide by 9 1/4 inches long. She has two pieces of wood which are 18 inches long and two pieces which are 12 inches long. How much extra wood will she have. She will have two pieces blank inches long and two pieces blank inches long
Answer:
12 1/2 inches extra wood.
Step-by-step explanation:
From the question, the measurements given for the frame are ;
Length, l = 9 1/4 in -----write as improper fraction : 37/4 in
Width, w= 14 1/2 in -------29/2 in
This should tell you that custom frame will be rectangular in shape.
Find the total perimeter of the frame which will be total length needed in inches for the frame.
P= 2{l+w}
[tex]P=2(\frac{37}{4} +\frac{29}{2} )\\\\\\P=2( \frac{95}{4} )=\frac{95}{2}[/tex]
P= 95/2 in ------total length required for the frame
Available pieces of wood are;
Two pieces of 18 in long = 2*18 = 36 in
Two pieces of 12 in long = 2*12 = 24 in
Total available length from the pieces of wood = 36 + 24 = 60 in
Extra wood available :
60/ 1 - 95/2 = 25/2 in
In mixed fraction : 25/2 = 12 1/2 inches extra wood.
Simplify the expression.
(4a3 - 80 - 4a2) + (7a? - 7 - 6a)
Answer: 4a3 −87−4a 2 +a
Step-by-step explanation:
A ball is rolled down the hill at 3 m/s. The hill is 36 meters long. How
many seconds does it take the ball to reach the bottom of the hill? *
Answer:
12 seconds
Step-by-step explanation:
To do this you would take the rate of the ball, (the 3 m/s) and divide it from how big the hill is, (36 m)
36/3=12 seconds
So the ball would reach the bottom of the hill in 12 seconds
NEED HELP ASAP PLEASE!!
Answer:
a would be 0 and b would be 33
Step-by-step explanation:
that's what I think the answer is-
What is the difference of twenty squared and the product of fifteen and twelve?
200
180
220
160
Answer:
220
Step-by-step explanation:
20 squared is 400
15 times 12 is 180
400-180 is 220
Answer:
ans
multiply all number please like
ans is 220
Can you please help me with this?
Answer:
–2/7
Step-by-step explanation:
The slope formula is m = y2–y1/x2–x1
Where m is slope, (x1, y1) is the coordinates of any point, (x2, y2) is another point.
So take any number on the y column, I used 2 and 4 and subtract them by each other 2-4= -2 and do their x equivalent 7-0 = 7 put them in slope format and it's -2/7
Shawn's family car holds 16 gallons of fuel. Each day the car uses 0.8 gallons to get to school and back. A warning light comes on when there is less than 1.5 gallons left in the fuel tank. How many days can Shawn drive the car before the warning lights come on?
Given :
Shawn's family car holds 16 gallons of fuel.
Each day the car uses 0.8 gallons to get to school and back.
A warning light comes on when there is less than 1.5 gallons left in the fuel tank.
To Find :
How many days can Shawn drive the car before the warning lights come on.
Solution :
Let, after x days warning come.
So,
[tex]16 - 0.8x < 1.5\\\\16-1.5<0.8x\\\\0.8x > 14.5\\\\x > \dfrac{14.5}{0.8}\\\\x > 18.125[/tex]
Therefore, at 19th day the warning light will start glowing.
Hence, this is the required solution.
Which function is negative for the interval (-1, 1)?
Ty
1y
3
2
2
-3-2-1
2 3
-3-2
-3-2-14
-3-2-1
23
-2
ON
HAL
O
O
Answer:
Step-by-step explanation:
espera y termino y te ayudo vale que me falta poco
what is the distributive property of -8(2b+3)
Answer:
-16b -24
Step-by-step explanation:
[tex]-8(2b+3)\\\\-8\times 2b + (-8\times 3)\\\\-16b +(-24)\\\\-16b -24[/tex]
use an equation to find the value of k so that the line that passes through the given points had the given slope, m.
PLEASE HELP ME I DONT WANT TO FAIL ALGEBRA AND NO ONE HAS ANSWERED THE LAST TIMES I NEEDED HELP!!!!!!!!!
Answer:
k = 11
Step-by-step explanation:
Caleb was building a birdhouse. He needed 2 boards that were each 6 inches long and one board that was 18 inches long. He was then able to cut the boards into pieces to use.
Answer: 30 inches
Step-by-step explanation:
Here is the complete question:
Caleb was building a birdhouse. He needed 2 boards that were each 6 inches long and one board that was 18 inches long. He was then able to cut the boards into pieces to use. What was the total length of the boards that he needed?
From the question, we are informed that Caleb needed 2 boards that were each 6 inches long and one board that was 18 inches long.
The total length of the boards that he needed goes thus:
For the first part, we are told that Caleb needed 2 boards that were each 6 inches long. This means that he needs a total of (2 × 6 inches) = 12 inches.
We are also told that he needed one board that was 18 inches long. This mean the total length of the birds needed will be the addition of the length of all the three boards. This will be:
= 12 inches + 18 inches
= 30 inches
Please show all of the work you did.
9514 1404 393
Explanation:
RS ≅ RU . . . given
RT ≅ RT . . . reflexive property
TS ≅ TU . . . definition of midpoint
ΔRTS ≅ ΔRTU . . . SSS postulate
Lisa has only nickels and dimes in her money box