All categories

3 years ago

PLEASEEEE HELP ASAP!!!!! Answer both

Mathematics

1 answer:

Vanyuwa [196]3 years ago

5 0

Answer: the first one is 4,1

You might be interested in

the ratio of students at a school is 3 boys for every 4 girls. If there are 52 girls how many boys are in the school

vova2212 [387]

There are 39 boys.
First you divide 4 into 52 because there are 3 boys for 4 girls.
Then you take the quotient, 13, and multiply by 3.

3 0

3 years ago

PLEASE HELP NOW!!

Rufina [12.5K]

1. Carl's constant rate of speed is the slope of the straight line graph.

This straight line passes through: (0,0), (5,1), (10,2) etc

We can use the slope formula with any two points to find the slope of this line.

The slope formula is $m=\frac{y_2-y_1}{x_2-x_1}$ .

Let $(x_1,y_1)=(0,0)$ and $(x_2,y_2)=(5,1)$

Then $m=\frac{1-0}{5-0}$ , $\implies m=\frac{1}{5}$ .

Carl's speed is $\frac{1}{5}$ miles per minute.

But we must leave our answer in miles per hour

Hence Carl's speed is $\frac{1}{5}\times 60=12$ miles per hour

After 2 hours, Carl will travel $12\times 2=24$ miles.

2. The given line has equation $-4x+y=10$

We write this in slope-intercept form by solving for y.

$\implies y=4x+10$

This is in the form $y=mx+c$ , where $m=4$ is the slope.

When x=3, $y=4(3)+10$

$\implies y=12+10=22$

When x=3, y=22

3. The given straight line graph that models the situation passes through:

(0,0) and (20,30).

The slope of this line is $\frac{Rise}{Run}=\frac{300}{20}=15$

Therefore the rate is $ 15 per ticket.

If the theater sells 150 tickets, the earnings will be: $150\times 15=2,250$ dollars.

7 0

3 years ago

Ana's statistics skills have been improving during her senior year at Fletcher High School. On her first end-of-the-week assessm

ikadub [295]

3-9= 6 6x4=24 65+24=89 so 89

4 0

3 years ago

Read 2 more answers

A human gene carries a certain disease from the mother to the child with a probability rate of 70%. suppose a female carrier of

Sergeeva-Olga [200]

The probability of at least one child inheriting the disease can be given by
P(X ≥ 1) = 1 - P(X = 0). This is because the only choice other than at least one child inheriting the disease is that no children get it.
Since there is a 70% or 0.7 chance that each child will inherit it, there is a 30% or 0.3 chance that they will not. This gives us
1 - P(X = 0) = 1 - (0.3)(0.3)(0.3) = 1 - 0.027 = 0.973
There is a 97.3% chance that at least one of the children will get the disease from their mother.

4 0

3 years ago

5x+136=180 Find the value of x

Gnesinka [82]

5x+136=180
5x=44
x=8.8

7 0

3 years ago