Answer:
$10 coins: 21
$20 coins: 24
Step-by-step explanation:
heyy me again
So we can create 2 equations where
x = number of $10 coins
y = number of $20 coins:
x + y = 45
10x + 20y = 690
we can move equation 1 around so that we can get a value of x
x = 45 - y
now we can substitute x into the second equation
10(45 - y) + 20y = 690
450 - 10y + 20y = 690
10y = 240
y = 24
Now plug in y back into the first equation
x = 45 - y
x = 45 - 24
x = 21
Which graph represents an exponential function?
Answer:
A simple exponential function to graph is y=2x . Notice that the graph has the x -axis as an asymptote on the left, and increases very fast on the right. Changing the base changes the shape of the graph. Replacing x with −x reflects the graph across the y -axis; replacing y with −y reflects it across the x -axis.
What is 37-11+23? Have a great night guys!!!! #FREEPOINTS
Answer:
49 thanks have a awesome night/day
Answer:
37-11+23= 49
Have a good day
Suman bought a tea pack of 0.345kg. From that, 40g of tea was taken. What
is the amount of tea left with her?Pls answer fast
Answer:
The remaining tea = 0.305 kg
Step-by-step explanation:
The mass of Tea pack = 0.345 kg
The mass of tea taken = 40 g
as
40 g = 0.04 kgTherefore, all we need is to subtract 0.04 kg from 0.345 kg to determine the tea left:
i.e.
Remaining Tea left = Total tea - Tea taken
= 0.345 - 0.04
= 0.305 kg
Therefore, the remaining tea = 0.305 kg
Write an equation of the line that
passes through (-1,2) with a slope of 4
Step-by-step explanation:
Hey there!
Given;
The points is; (-1 , 2) and slope is 4.
Note: Use one-point formula.
[tex](y - y1) = m(x - x1)[/tex]
~ Put all values.
[tex](y - 2) = 4(x + 1)[/tex]
~ Simplify it.
[tex](y - 2) = 4x + 4[/tex]
[tex]4x - y + 6 = 0[/tex]
Therefore, the required equation is; 4x-y+6=0.
Hope it helps...What is 3/11 of 22/39?
Answer:
0.1538
Step-by-step explanation:
first convert 3/11 into a percentage
3÷11=0.272727272727273
0.272727272727273 × 100
27.272727272727/100
27.272727272727%
≈27.27%
27.27% of 22/39
change 22/39 into a decimal
22÷39=0.5641025641》0.564
27.27% of 0.564
Equation: Y = P% * X
Solving our equation for Y
Y = P% * X
Y = 27.27% * 0.564
Converting percent to decimal:
p = 27.27%/100 = 0.2727
Y = 0.2727 * 0.564
Y = 0.1538
Answer:
2/13Step-by-step explanation:
3/11 of 22/39 is:
22/39 * 3/11 = 22/11 * 3/39 =2*1/13 =2/13at school, the maximum number of students that can be in a class room is 22. if there are 25 students signed up for the geometry class, how many more students can join the class?
Answer:
At school, the maximum number of students that can be in a class room is 22. There are 25 students signed up for the geometry class.
Therefore, there are (25-22)=3 extra students.
Hence, no more students can join the class.
2a + 6 = 12
What does (A) equal?
Answer:
a = 3
Step-by-step explanation:
2a + 6 = 12
-6 -6
----------------
2a = 6
take six and divide by 2
a = 3
Answer:
3
Step-by-step explanation:
2a + 6 = 12
2a = 6 - 12
2a = 6
a = 6/2
= 3
Hope this helps
Donald bought a bicycle that cost $50.00 when it was new. If he eventually sold it for
16% of the original cost, how much was it sold for
Answer:
$8
Step-by-step explanation:
ngl but thats cheap for a $50 bike. is the bike torn in half or somthing
Which ordered pair is a solution to the inequality?
Answer:
C.
Step-by-step explanation:
The equation would be -3 is less than 3(1)+1, which is 4. And -3 is less than 4.
(hope this helps!)
The points (1, 4) and (0, 2) fall on a particular line. What is its equation in slope-intercept
form?
Isabel gets 50 dollars a week as an allowance. If Isabel goes to the mall and spends $12 on shorts and $8 on a t-shirt, what percent of his allowance did he spend?
Find the solutions of the quadratic equation -9c² +2 +3 = 0.
Given that,
An equation : -9c² +2c +3 = 0
To find,
Find the value of x.
Solution,
We have, -9c² +2c +3 = 0
We can solve it using the formula as follows :
[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
Here, a = -9, b = 2 and c =3
Put the values,
[tex]c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69[/tex]
So, the solution are -0.47 and 0.69.
I want to find the side length and get the answer step by step
Answer:
76 is the length of this rectangle and the width is 72
Step-by-step explanation:
Sorry for the sloppy handwriting
Simplify: -20b^8 + 2b^8
Enter the original expression if it cannot be
simplified.
Answer:
=-18b mini eight lol
Step-by-step explanation:
What is the slope of the line with points A and B?
1
-2/3
-1
0
Answer:
-1
Step-by-step explanation:
A = (0,0)
B = (1,-1)
Slope = (-1-0)/(1-0) = -1/1 = -1
2 of 7
© Express in the form n :1
25:5
What is the answer?
Answer:
5:1
Step-by-step explanation:
n:1
25: 5
to get to five you multiple 1 by 5. You have to reverse the equation to n:1, so 25 divided by 5 is 5. So you'd answer would be 5:1 in the form of n:1.
(5x - 2y + 1) - (7x - 3y - 4)
Answer:
-2x - (-1y) - (-3)
Step-by-step explanation:
Answer:
-2x + y + 5
Step-by-step explanation:
(5x - 2y + 1) - (7x - 3y - 4)
1) Distribute the negative sign and remove all parenthesis
5x - 2y + 1 - 7x + 3y + 4
2) Combine all like terms
-2x + y + 5
Rewrite the expression using only positive integer exponents.
In a certain chemical, the ratio of zinc to copper is 4 to 19. A jar of the chemical contains 646 grams of copper. How many grams of zinc does it contain?
In a triangle, the measures of the three angles are x, x + 12 , and x-9. What is the measure of each angle?
Answer:
x+(x+12)+(x-9)=180
3x+12-9=180
3x=180-3
3x=177
x=177/3
x=59
Each angle is 59°, 71° and 500°
Find the gradient of the line segment between the points (7,2) and (10,-5).
Give your answer in its simplest form.
Given:
Two end points of a line segment are (7,2) and (10,-5).
To find:
The gradient of the given line segment.
Solution:
We know that, gradient of a line segment is the slope of that line segment.
The end points of the line segment are (7,2) and (10,-5), so slope or gradient of the line segment is
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m=\dfrac{-5-2}{10-7}[/tex]
[tex]m=\dfrac{-7}{3}[/tex]
Therefore, the gradient of the given line segment is [tex]\dfrac{-7}{3}[/tex].
What is the y-intercept of y = –2:+ 6? Choose 1 answer: (0, -2) (0,6) (-2,0) (6,0
Answer:
A circle has the equation x2+ y2 + 2x - 2y - 34 = 0. Graph the circle using the center (h, k) and radius r. Find the intercepts, if any, of the graph. What are the intercepts? Select the correct choice below and fill in any answer boxes within your choice. The intercept(s) is/are . (Type an ordered pair. Use a comma to separate answers as needed. Type an exact answer for each coordinate, using radicals as needed.) There are no intercepts.
Show transcribed image text A circle has the equation x2+ y2 + 2x - 2y - 34 = 0. Graph the circle using the center (h, k) and radius r. Find the intercepts, if any, of the graph. What are the intercepts? Select the correct choice below and fill in any answer boxes within your choice. The intercept(s) is/are . (Type an ordered pair. Use a comma to separate answers as needed. Type an exact answer for each coordinate, using radicals as needed.) There are no intercepts.
Step-by-step explanation:
Answer:
[tex]y = - 2x + 6 \\ at \: y - intercept, \: x = 0 \\ substitute \: for \: x \: in \: th e \: equation \\ y = - 2(0) + 6 \\ y = 6 \\ y - intercept = (0,6)[/tex]
Figure ABCD is transformed to figure A′B′C′D′:
a. Angle D prime A prime B prime.
b. Angle A prime B prime C prime.
c. Angle B prime C prime D prime.
d. Angle C prime D prime A prime.
Answer:
D. <C'D'A'
Step-by-step explanation:
Given that figure ABCD is transformed to figure A′B′C′D′, therefore the angles of ABCD would be congruent to the corresponding angles of A′B′C′D′.
<CDA corresponds to <C'D'A'. Therefore:
<CDA = <C'D'A'
Jennifer has $30. She goes to the food court to get food and drinks for
friends. Drinks are $2. Food is $3. How many drinks can Jennifer buy if she
buys no food?
helpppppppppppppppppppppp
Answer:
309 inches squared
Step-by-step explanation:
bottom face: 40
left face: 96
right face: 104
front face: 30
behind face: 30
add them up
What is factoring?
Show us an example of factoring when a=1
Show a second example when a does not equal 1.
Answer:
Factorizing is the part of math where you find out the equations.
Step-by-step explanation:
Answer:
Factoring is the process of trying to find a numbers factor.
Step-by-step explanation:
Ex: 6 is 2 × 3
HURRRY PLEASEE.........A coordinate plane. Which expression could help you find the distance between (10, 4) and (–6, 4)? |10| + |–4| |10| + |4| |–6| + |4| |10| + |–6|A coordinate plane. Which expression could help you find the distance between (10, 4) and (–6, 4)? |10| + |–4| |10| + |4| |–6| + |4| |10| + |–6|
Step-by-step explanation:
D
i got it right on the quiz
love to help
Answer:the answer is D!
Step-by-step explanation:
Which expression has a value of 9 when x = 4?
Answer:
right top one
Step-by-step explanation:
3(8-5)=24-15=9
your heart pumps about 60ml of blood per minute. about how much blood will it pump in a week
10080 ml
[tex]\\[/tex]
Answer:
604800ml of blood is pumped every week
Step-by-step explanation:
60×60=3600 (ml per hour)
3600×24=86400 (ml per day)
86400×7=604800 (ml per week)
PLEASE ANSWER ASASP IM DESPRATE IM BEGGING YOU I WILL MARK BRAINLEST!!!!!!!!!!!!!
The equation c = 2.5t represents the cost, c, for t tickets to the school play. Does a value of 3.5 for t make sense in this situation? Explain your reasoning.
Answer:
No. A ticket can't be split into 1/2 ,Right?