Hey there! I'm happy to help!
Here's José's equation.
J=2a+15
And here is Nancy's.
N=3a+5
We want to find the number of animals where they are the same amount, or where J=N. We can write these equations as equal and solve for a to find the answer!
2a+15=3a+5
Subtract 15 from both sides.
2a=3a-10
Subtract 3a from both sides.
-a=-10
Divide both sides by -1.
a=10
Therefore, José and Nancy charge the same amount for 10 animals.
Have a wonderful day! :D
What is the area of a circle with a radius of 5 inches?
Use 3.14 for a
Enter your answer as a decimal in the box.
in?
Answer:
78.54in²
Step-by-step explanation:
i used the formula
I need help 6 . x = 42
Answer:
7
Step-by-step explanation:
42 divided by 6
Answer:
Step-by-step explanation:
Danny charges $45 for 5 hours of swimming lessons, Martin charges $24 for 2 hours of swimming lessons.
Who offers a better deal?
(select) offers the better deal.
Answer:
Danny charges $45 for 5 hours of swimming lessons
Answer: Danny
Step-by-step explanation:
45/5=9 and 24/2=12 Danny charges 4.5 an hour and Martin charges 6 an hour so Danny is better.
the probability of randomly selecting a four-person committee consisting entirely of canadians from a pool of 11 americans and 18 canadian
Answer:
[tex]Probability =0.1744[/tex]
Step-by-step explanation:
Given
Total
[tex]American = 11[/tex]
[tex]Canadian = 18[/tex]
Selection
[tex]American = 0[/tex]
[tex]Canadian = 4[/tex]
Required
Determine the probability of selecting a 4 committee member that are Canadian.
First, we calculate total possible selection.
[tex]Total = American + Canadian[/tex]
[tex]Total = 11 + 18[/tex]
[tex]Total = 27[/tex]
Number of ways to select 4 from 27 is:
[tex]^{27}C_4 = \frac{27!}{(27-4)!4!}[/tex]
[tex]^{27}C_4 = \frac{27!}{23!4!}[/tex]
[tex]^{27}C_4 = \frac{27*26*25*24*23!}{23!4!}[/tex]
[tex]^{27}C_4 = \frac{27*26*25*24}{4!}[/tex]
[tex]^{27}C_4 = \frac{27*26*25*24}{4*3*2*1}[/tex]
[tex]^{27}C_4 = \frac{421200}{24}[/tex]
[tex]^{27}C_4 = 17550[/tex]
Next, we calculate ways of selecting 4 Canadians from 18 is:
[tex]^{18}C_4 = \frac{18!}{(18-4)!4!}[/tex]
[tex]^{18}C_4 = \frac{18!}{14!4!}[/tex]
[tex]^{18}C_4 = \frac{18*17*16*15*14!}{14!4!}[/tex]
[tex]^{18}C_4 = \frac{18*17*16*15}{4!}[/tex]
[tex]^{18}C_4 = \frac{18*17*16*15}{4*3*2*1}[/tex]
[tex]^{18}C_4 = \frac{73440}{24}[/tex]
[tex]^{18}C_4 = 3060[/tex]
The required probability is:
[tex]Probability =\frac{3060}{17550}[/tex]
[tex]Probability =0.1744[/tex]
Need answer asap due midnight today
A
Yasmin buys 9 cakes for £10.71. How much does 1 cost?
B
Ben buys 5 pencils for 80p.how much does 1 cost?
C
Maya buys 6 chocolate bars for £3.12. How much does 1 cost?
Answer:
1.19 is the price for Yasmin.
16p is the cost for Ben.
0.52 is the cost for 1.
Step-by-step explanation:
Divide them all and you will get your answer.
find all the real and complex zeros of f(x)=x^3-7x^2+4x-28
Answer:
For [tex]x \in\mathbb{C}[/tex]
[tex]x = -2i[/tex]
[tex]x = 2i[/tex]
[tex]x = 7[/tex]
Step-by-step explanation:
[tex]f(x)=x^3-7x^2+4x-28[/tex]
For [tex]f(x) = 0[/tex]
[tex]x^3-7x^2+4x-28 = 0[/tex]
We can easily factor the expression [tex]x^3-7x^2+4x-28[/tex] by grouping.
[tex]x^3-7x^2+4x-28 = (x^3-7x^2)+(4x-28) = x^2(x-7)+4(x-7) = \boxed{(x^2+4)(x-7) }[/tex]
Now we have
[tex](x^2+4)(x-7) = 0[/tex]
Therefore,
[tex]x^2+4 = 0 \text{ or } x-7 = 0[/tex]
So,
[tex]x^2 = -4 \implies x = \pm\sqrt{-4}[/tex]
Once [tex]\sqrt{-1} = i[/tex]
[tex]x = \pm\sqrt{-4} = \pm\sqrt{4}\sqrt{-1} = \pm 2i[/tex]
What is the equation of the line that has a slope of 1/3 and goes through the point (6, -2)?
Answer:
y=1/3x-4
Step-by-step explanation:
plug this equation into Desmos, a graphing calculator site, and the point and you can see it goes right through it! i hope this helped!
Hey please help me answer this and explain your answer :)
Will give brainlst.
Answer:
B for banana
Step-by-step explanation:
jenny has 7/8 of a tank of gas.she estimates she will use 2/3 of the tank to get home.what fraction of the tank of gas she use?
Answer:
Jenny uses 7⁄12 of the tank of gas.
Step-by-step explanation:
The length of a pole in a picture is 4 inches. The scale of the picture was given to be 1 inch x 13 inches. What would be the actual length of the pole?
Answer:
52 inches
Step-by-step explanation:
4×13=52 inches
pls help I need this due today pls ASAP
Answer:
130%
increase
Step-by-step explanation:
the new quantity is 13, the old is 10
divide 13/10
in your calculator this will show 1.3
that means one whole and 30/100ths, or in percents 130%
(to convert decimal to percent just mulitply by 100)
In a right triangle ABC, C is the right angle. What does cosB equal?
1. SinB
2. SinA
3. CosA
4. Not enough info
Given that,
ABC is a right angle triangle, C is the right angle.
To find,
cosB = ?
Solution,
The sum of angle of a triangle is equal to 180 degrees. So,
∠A + ∠B + ∠C = 180°
Put ∠C = 90°
∠A + ∠B + 90° = 180°
∠A + ∠B = 90°
Taking cos with each term.
cosA+cosB = cos (90)
cosA+cosB = 0
cosB=-sinA
Hence, cosB = sinA.
What is the following product?
Answer:
10.25 which is equal to letter c
Step-by-step explanation:
I used a calculator and figured out which equals it
PLEASE HELP WILL MARK BRAINLEIST
Answer:
I belive it's Y = 3/2x - 1
whats 45 divided by 33
Answer:
1.36363636364
Step-by-step explanation:
Step-by-step explanation:
Here
45%33=1.36
:. Ans=1.36
Help me please and thank you
Answer:
c=45 b=150 d=75 a=90
Step-by-step explanation:
because you can look at how big angels are
True or False: If an equation has different slopes, it has no solution.
Answer:
it's true. because it has more type of sums and head pain will come
Answer:
When two equations have the same slope but different y-axis, they are parallel. Since the two equations never intersect, the system has no solutions.
you can decide your answer from that explanation!
The Molina family went to a concert together. They purchased 4 concert tickets for $25 each, 3T -shirts for $15 each, and a poster for $10.Write an expression for the total cost. Then find the total cost.
Answer:
155
Step-by-step explanation:
( 25 x 4 ) + ( 3 x 15 ) + 10 = 155
Which class has a ratio of girls to total students of 7:10?
A. class with 3 boys and 7 girls
B. class with 7 boys and 3 girls
C. class with 7 boys and 10 girls
D. class with 10 boys and 7 girls
Answer:
A
Step-by-step explanation:
The total class is 10
the number of girls is 7
ratio of girls to total students - 7:10
Can someone please explain this real quick so I can get a better understanding on this? My teacher didn't do a good job..
Answer:
[tex]\ \\ \\ \sqrt{113}=c[/tex]
Step-by-step explanation:
Use the Pythagorean theorem as the triangle is a right triangle (90 degree angle is present)Your formula is set as
[tex]a^{2}+b^{2}= c^{2} \\\\7^{2}+8^{2}= c^{2} \\\\64+49= c^{2} \\\\113=c^{2\\\\\\\\\[/tex]
Identity the composite number represented by the prime factorization below
22 X 32 X 7
It’s exponents
Answer:look below
Step-by-step explanation: The prime factorization of number is the break down into factors which are prime numbers (numbers without factors except 1 and itself). The factors 22 and 32 are composite numbers since they have more than 1 and itself as factors. They are not prime.
However, the factorization of 22 * 32 * 5 will equal a number. 22*32*5 = 3, 520. But it does not match the solutions given.
Answer:
2464
Step-by-step explanation:
prime factors : 32,11,7
32×11×7=2464
8 x (2 exponent 4 - 3) + 8 =
Answer:
130
Step-by-step explanation:
do ( ) first
²4=4×4=16
16-3=14
14×8=112
112+8=130
The y intercept is at the point '?'
The roots are x = ? and x = ?
The turning point is at ( ? , ? )
Answer:
See below.
Step-by-step explanation:
The y-intercept is the point where the line passes the y-axis. In this instance, that is at the point (0, 3).
The roots are the x-intercepts are the points where the line crosses the x-axis. In this instance, the roots are x = -3 and x = -1.
The turning point is the vertex of the equation. In this instance, the vertex is on the point (-2, -1).
Hannah is a photographer who specializes in portraits. This morning, she soent four hours doing graduation portrait sessions. In the afternoon, she soent four hours doing family portaits sessions but she didnt do as many session as the graduation portraits. Tomorrow, she has the same number of graduation and family sessions to work. Which will she likely finish in less time?
how many times can 200 go into 487
Factor the polynomial completely. Use synthetic division.
F(x) = x^3-7x-6
Answer:
The factors of given polynomial x =-1 , -2 and x =3
Step-by-step explanation:
Step(i):-
Given the polynomial
f(x) = x³ - 7x -6
put x =-1
f(-1) = (-1 )³- 7(-1) - 6 = -1+7-6=0
(x+1) is a one factor
By using synthetic division
x³ x² x constant
x=-1 ↓ 1 0 -7 -6
↓ 0 -1 1 6
1 -1 -6 0
The polynomial x² - x - 6
Step(ii):-
The factors ( x+1)(x² - x - 6 ) = 0
x = -1 and x² - x - 6 =0
x =-1 and x² - 3x + 2 x - 6 =0
x =-1 and x (x -3) + 2( x-3) =0
x =-1 and (x+2)(x-3) =0
Final answer:-
The factors of given polynomial x =-1 , -2 and x =3
(05.08A)The figure below shows three quadrilaterals on a coordinate grid:
A coordinate plane is shown. Figure Q is a quadrilateral with sides measuring 5 and 2. Figure S is a quadrilateral with sides measuring 5 and 2. Figure W is a quadrilateral with sides measuring 10 and 4.
Which of the following statements is true about the three quadrilaterals?
Q and W are similar but not congruent.
W and S are similar and congruent.
W and Q are similar and congruent.
Q and S are similar but not congruent.
Answer:
Q and w are similar BUT NOT CONGRUENT
Step-by-step explanation:
I TOOK THE QUIZ lol
Answer:
a
Step-by-step explanation:
A little girl kicks a soccer ball. It goes 10 feet and comes back to her. How is this possible?
Answer:
She kicked the ball upwards.
Step-by-step explanation:
:)
Answer:
She kicked the ball up. Thanks for 50 points. :)
Step-by-step explanation:
Your grandfather gave you $13.50 with which to buy a present. This covered 5/6 of the cost. How much did the present cost?
Answer:
Step-by-step explanation:
5/6 x = 13.50 Multiply both sides by 6
5x = 13.50 * 6
5x = 81 Divide by 5
x = 81/5
x = 16.2
