Ask question

Ask question

All categories

2 years ago

5

Juanita has saved 30% of the money that she needs to buy a new bicycle.

1 answer:

Mnenie [13.5K]2 years ago

3 0

well, the bicycle costs "x" which is the 100% of its price, we know she has 30% thus far, and we also know that that is 66 bucks.

$\begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 66&30 \end{array}\implies \cfrac{x}{66}=\cfrac{100}{30}\implies \cfrac{x}{66}=\cfrac{10}{3} \\\\\\ 3x=660\implies x\cfrac{660}{3}\implies x=220$

You might be interested in

Find x.<br><br> See attached picture.

pishuonlain [190]

Answer:

B. 22

Step-by-step explanation:

We know tan60=

$\sqrt{3}$

Let common side be x

Tan = opp/adj= sqrt(3)

$\frac{11 \sqrt{6} }{x} = \sqrt{3}$

Transposing we get :

$\frac{11 \sqrt{6} }{ \sqrt{3}} = x = 11 \sqrt{2}$

Now, we know that since the other triangle is a 45-45-90 triangle, we can state that the side adjacent to the given angle = 11 sqrt(2) as the two sides are equal due to the triangle being an isoceles triangle.

Solve for x by using Pythagorean theorem:

$\sqrt((11 \sqrt{2}^{2} + (11 \sqrt{2} )^{2} ) = x$

$= > \sqrt{2(11 \times 11 \times \sqrt{2} \times \sqrt{2}) } = x$

$= > \sqrt{484} = x = 22$

Hence answer is B. 22

3 0

2 years ago

There are 30 students in Ms. Prema's history class. 18 of these students turned in an extra credit project at the end of the sem

kow [346]

Answer:

12 students didnt turn in a extra credit project at the end of the semester.

Step-by-step explanation:

3 0

3 years ago

How would you find "b" in the y=mx+b equation? I have the "m" but I cannot find the "b"

ira [324]

B is just simply the y intercept

3 0

3 years ago

If (-3, y) lies on the graph of y = , then y =

ser-zykov [4K]

Answer:

The value of y is 64.

Step-by-step explanation:

The given equation is

$y=(\frac{1}{4})^x$

It is given that (-3, y) lies on the graph of y. It means the equation of the function must be satisfy by the point (-3,y).

Substitute x=-3 in the given equation to find the value of y,

$y=(\frac{1}{4})^{-3}$

$y=4^{3}$ $(\frac{a}{b})^{-n}=(\frac{b}{a})^n$

$y=64$

Therefore the value of y is 64.

5 0

4 years ago

Use the frequency table to determine how many students received a score of 80 or better on an English exam.

Sveta_85 [38]

10 students scored above an 80

3 0

3 years ago