Answer:
number of dimes = 15
number of quarters = 2
Step-by-step explanation:
total money = $2 = 200 cents
types of coins are dimes and quarters
number of dimes are 13 more than quarters
let number of dimes be x and quarters be y
so our equation =
10x + 25y = 200
x = (y+13)
10(y+13) +25y= 200
10y + 130 +25y = 200
35y + 130 = 200
y = 70/35 = 2
cross checking :
x = y+13 = 15
amount = 10x15 + 25x2 = 150 + 50 = 200 cents = $2.
determine 3 ways to have 13 more dimes than quarters:
we can use linear equations and tables to solve.
What is the partial fraction decomposition of
7x squared- 6x +9/
3x(4x squared +9)
9514 1404 393
Answer:
1/(3x) =(x -2)/(4x^2 +9)
Step-by-step explanation:
The denominator cannot be factored further, so the final form will be ...
A/(3x) + (Bx +C)/(4x^2 +9)
The value of this is ...
(A(4x^2 +9) +(3x)(Bx +C))/(3x(4x^2 +9))
= ((3B+4A)x^2 +3Cx +9A)/(3x(4x^2 +9))
Equating coefficients gives ...
3B+4A = 7
3C = -6 ⇒ C = -2
9A = 9 ⇒ A = 1
Using the found value of A, we find ...
3B +4 = 7 ⇒ B = 1
Then the decomposition is ...
[tex]\dfrac{7x^2-6x+9}{3x(4x^2+9)}=\boxed{\dfrac{1}{3x}+\dfrac{x-2}{4x^2+9}}[/tex]
Answer:
a
Step-by-step explanation:
took test
15. a
16.c
17. e
18.9
19. h
Answer:
19 h
Step-by-step explanation:
The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115
skróć ułamki zwykłe do najprostszej postaci
2/10=
15/100=
32/100=
6/100=
45/100=
Answer:
1/5 decimal: 0.2
3/20 decimal: 0.15
8/25 decimal:0.32
3/50 decimal:0.06
9/20 decimal: 0.45
Answer:
0.2
0.15
0.32
0.06
0.45
Step-by-step explanation:
Turn the fractions into decimals by changing the place value
Out of the 4,500 people who attend the rock concert, forty-six percent purchase a T-shirt. How many people buy T-shirts?
The number of people that bought T-shirt is 2070 people
What is percentage?A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%"
To find the percentage of those that bought the T-shirt
We find 45% of 4,500
45/100 * 4500
2070
Hence, 2070 people out of the 4,500 people who attend the rock concert bought the T-shirt
Learn more about percentage at:https://brainly.com/question/24304697
#SPJ1
6 to the 2 power −2(5+1+3)
Answer:
18
Step-by-step explanation:
HELP ASAP!
Use the quadratic equation y = –2x^2 + 4x +5 to complete the statements.
Answer:
Step-by-step explanation:
Given quadratic equation is,
y = -2x² + 4x + 5
y = -2(x² - 2x) + 5
y = -2(x² - 2x + 1 - 1) + 5
y = -2(x² - 2x + 1) + 2 + 5
y = -2(x - 1)² + 7
This equation is in the vertex form of the quadratic equation,
y = a(x - h)² + k
where, (h, k) is the vertex of the parabola.
Therefore, vertex of the given quadratic equation is (1, 7)
The equation can be rewritten as y = -2(x - 1)² + 7.
Therefore, the vertex of the graph of the function y = -2x² + 4x + 5 in the xy-coordinate plane is located at the point (1, 7).
if a triangle has three degrees that measure 75, 75 and 30, what type of triangle is it equilateral, scalene, isosceles
Answer:
it is Isoscales triangle
Step-by-step explanation:
it is Isoscales triangle because Isoscales triangle is the triangle having atheist two sides or angle equal and in that question there is two 75
[tex] \huge\sf \pink{A} \sf \red{n} \sf \orange{s} \sf \blue{w} \sf \green{e} \sf \purple{r}[/tex]
It is an isosceles triangle.
[tex] \huge\sf \pink{R} \sf \red{e} \sf \orange{a} \sf \blue{s} \sf \green{o} \sf \purple{n}[/tex]
Because it's 2 of sides are equal and one is different.
[tex] \huge\sf \pink{V} \sf \red{e} \sf \orange{r} \sf \blue{i} \sf \green{f} \sf \purple{i} \sf \red{c} \sf \pink{a} \sf \blue{t} \sf \green{i} \sf \purple{o} \sf \orange{n}[/tex]
Remember,A triangle with two sides equal is known as isosceles triangle.
Also,This triangle have two sides with equal length.
In parallelogram ABCD, if m angle C= 110° and m angle D - 70°, what is the sum of the measures of LA and 28?
409
909
180°
360°
Answer:
180°
Step-by-step explanation:
ABCD is a parallelogram.
Measures of the opposite angles of a parallelogram are equal. Here [tex] \angle A, \:\: \angle C \: \: and\:\: \angle B, \:\: \angle D[/tex] are opposite angles.
[tex] \therefore m\angle A = m\angle C = 110\degree [/tex]
[tex] \& \:m\angle B = m\angle D = 70\degree [/tex]
[tex] m\angle A + m\angle B =110\degree + 70\degree [/tex]
[tex] m\angle A + m\angle B =180\degree [/tex]
Please help!
Find the zeros for y=2x(x+6)(x+-14)
Answer:
-6;14
Step-by-step explanation:
x+6=0
x-14=0
jason goes to the sandwich shop for lunch the prices for sandwiches are listed below
peanut butter and jelly $1.75
meatball $2.50
ham and cheese $2.25
what number completes the sentence 3m = ?
Given this figure on a coordinate plane, determine which of the following statements
could prove ABCD is a parallelogram.
I need help plzzz
HELP!!! i need an answer quick
Answer:
14 that's the answer I think so hope its it
15x-7y=-49 standard form to slope-intercept form
Answer:
y= \frac{15}{7}x + 7
not sure if that will work so
y = 15x/7x + 7
Step-by-step explanation:
Estimate 1.9 x 4.4
A. Between 4 and 10
B. between 12 and 20
C. between 1 and 5
D Between 1 and 12
Answer:
A
Step-by-step explanation:
it's 8.36 which is between 4 and 10
A sports store owner uses the expression 5.855 +5.05f to calculate her profit when she sells s soccer balls and f footballs.
What is the sports store owner's profit, in dollars, when she sells 34 soccer balls and 27 footballs?
Answer:
I'm pretty sure it's 10.905
This is 7th grade math so pls answer asap
1: v/8=2
2:16=k/11
3:18+m=8
v/8=2
x8 x8
v=16
16=k/11
x11 x11
176=k
18+m=8
-18 -18
m=-10
---
hope it helps
What is the value of -3 2/3 +1/3
Exact Form:
−10/3
Decimal Form:
−3.3...
Mixed Number Form:
−3 1/3
Answer:
-10/3
Step-by-step explanation:
-2(x - 14) help me? I need help so I can get my grade up in algebra and pass my class so please help me?
Answer:
[tex] - 2x + 28[/tex]
Step-by-step explanation:
1) Expand by distributing terms.
[tex] - 2x - 2 \times - 14[/tex]
2) Simplify 2 × -14 to -28.
[tex] - 2x - ( - 28)[/tex]
3) Remove parentheses.
[tex] - 2x + 28[/tex]
Therefor, the answer is - 2x + 28.
Which of these choices show a pair of equivalent expressions? Check all that
apply.
A. 89/2 and ( 18 )
B. 121/7 and (172)
C. (2/125) and 1253/7
D. 45/2 and (1)
Step-by-step explanation:
I think it's B, if you are missing a decimal point and the second term is 17.2 and not 172. otherwise none are equivalent
Answer:
D. 45/2 and (1)
A. 89/2 and ( 18 )
Step-by-step explanation:
ap3x
Can you help me pls lol I’m doing a test
Answer:
Dont say your doing a test, brainly is strict and will delete your question because its timed
Step-by-step explanation:
The highest temperature recorded in the town of
Westgate this summer was 91°F. Last winter, the
lowest temperature recorded was -14°F. Find the
difference between these extremes.
1/5 (10x - 5)
whoever answers first and at least looks correct gets brainliest!!!
Answer:
2x - 1
Step-by-step explanation:
Simplify. Note that you cannot combine a term with a variable with a constant term. Divide 5 from both terms in the parenthesis:
1/5(10x - 5) = (10x - 5)/5
Divide 5 from both terms in the parenthesis:
10x/5 = 2x
-5/5 = -1
2x - 1 is your answer.
~
Answer:
1/5 (10x - 5)
[tex]taking common \: 5 \: from (10x - 5) \\ 1 \div 5 \times 5(2x - 1)[/tex]
2x-1 is your answer
What is the answer??
Answer:
multiply both sides of the equation by 3
Step-by-step explanation:
When your trying to solve for a variable, do steps where you are isolating that variable.
In the equation given, to isolate b, get rid of the division first and we can do that through multiplication.
The sum of the squares of two consecutive even integers is 1684. What are the integers?
Answer:
Step-by-step explanation:
Let the 2 consecutive integers be x and x+1.
x²+(x+1)²=1684
x²+(x+1)(x+1)=1684
x²+x²+x+x+1=1684
2x²+2x-1683=0
Using quadratic formular
A cylindrical container of paint with radius 6 in. is 15 in tall. If all of the surfaces except
the top are made of metal, how much metal is used to make the container? Assume the
thickness of the metal is negligible. Show your answer to the nearest square inch.
HELP ME PLZZZ ASAP!
Factor to create an equivalent expression: 36a-16 .
Answer:
4(9a - 4)
Step-by-step explanation:
Answer:
4(9a - 4)
Step-by-step explanation:
Given
36a - 16 ← factor out 4 from each term
= 4(9a - 4)
B. Noah writes the equation 3 (x+7)=57 to represent the situation. DO YOU agree with him? Explain your answer.
Answer:
Yes , i agree with Noah that the equation would be 3(x + 7) = 57
Step-by-step explanation:
P.S - The exact question is -
To find - Noah writes the equation 3 (x+7)=57 to represent the situation.
DO YOU agree with him? Explain your answer.
Proof -
Yes , i agree with Noah
Because in the figure we can see that there is x written 3 times and 7 written 3 time and whole the values is equal to 57 .
Because 57 is divided into x 7 x 7 x 7
∴ we can write it as
3 times x + 3 times 7 = 57
⇒3(x) + 3(7) = 57
⇒3(x+7) = 57
Ans Noah give the same equation 3 (x+7)=57
So, I agree with Noah.
Finding side lengths with trigonometry
Answer:
42.1
Step-by-step explanation:
tan 39 = 52 / x
x = 52 tan39
x = 42.1
One kitten weighs 2 pounds, 4 ounces, and a second kitten weighs 2 pounds, 2 ounces. What is their combined weight in ounces? *
I WILL GIVE BRAINLEST BECAUSE I WANT TO BE NICE
) Which expression is equivalent to 12 + 10d -(-4)-(-8d)?
16 + 18d
8 +18d
16 + 2d
8 + 2d
Answer:
The answer is 16+18d