All categories

3 years ago

Which statement is correct

Mathematics

2 answers:

natali 33 [55]3 years ago

7 0

Answer:

one french fry is worth 2 and one hamburger is equal to 5

Step-by-step explanation:

if three fries add up to 30 then each fry is worth 10. if one fry and two burgers add up to 20 then 20-10=10, 10 divided by 2 equals one hambrger is equal to 5. and lastly 9-5=4, 4 by 2=2 so each fry is worth 2.

makkiz [27]3 years ago

3 0

Answer:

C and D. One hamburger is worth 5 and One french fry is 2

Step-by-step explanation:

3x=30

Soda: 10

10+2x=20

Hamburger: 5

5+2x=9

French Fries: 2

You might be interested in

Alaina is selling wreaths and poinsettias for her chorus fundraiser wreaths cost $27 each poinsettias cost $20 each if she sold

Olegator [25]

she sold 9 wreaths that day

3 0

2 years ago

Calculator A What is the measure of angle A? 5 cm 3 cm Enter your answer as a decimal in the box. Round only your final answer t

aev [14]

Answer:

53.13⁰

Step-by-step explanation:

Use sine:

sinθ=opposite/hypotenuse

sin∠A=4/5

∠A=sin⁻¹(0.8)=53.13010235415≈53.13⁰

8 0

3 years ago

What is the area, in square units, of a triangle with vertices at (-1,-1), (3,-1), (2,2) PLEASE HELP

murzikaleks [220]

Step-by-step explanation:

A=½bh

A=½(4•3)

A=½(12)

A=6 units sq

5 0

2 years ago

Fgh is a right triangle

umka21 [38]

Can you clarify or add a picture?

6 0

3 years ago

For X a binomial random variable with n=5 and p=1/4, answer the following

mash [69]

Recall that for $X\sim\mathrm{Bin}(n,p)$ , i.e. a random variable $X$ following a binomial distribution over $n$ trials and with probability parameter $p$ ,

$\mathbb P(X=x)=f_X(x)=\begin{cases}\dbinom nx p^x(1-p)^{n-x}&\text{for }x\in\{0,1,\ldots,n\}\\\\0&\text{otherwise}\end{cases}$

So you have

$\mathbb P(X=2)=\dbinom52\left(\dfrac14\right)^2\left(1-\dfrac34\right)^{5-2}=\dfrac{135}{512}\approx0.26$

$\mathbb P(2\le X\le4)=\displaystyle\sum_{x=2}^4\mathbb P(X=x)$
$=\dbinom52\left(\dfrac14\right)^2\left(1-\dfrac14\right)^{5-2}+\dbinom52\left(\dfrac14\right)^3\left(1-\dfrac14\right)^{5-3}+\dbinom52\left(\dfrac14\right)^4\left(1-\dfrac14\right)^{5-4}$
$=\dfrac{375}{1024}\approx0.37$

The expected value of $X\sim\mathrm{Bin}(n,p)$ is simply $np$ , while the standard deviation is $\sqrt{np(1-p)}$ . In this case, they are $\dfrac54=1.25$ and $\sqrt{\dfrac{15}{16}}\approx0.97$ , respectively.

7 0

2 years ago