Seventh grade > L.8 Solve percent equations: word problems JS6
Harold's Diner offers its clients a choice of regular and diet soda. Last night, the diner served
40 sodas in all, 10 of which were regular. What percentage of the sodas were regular?

Answer:

If its per month then its 900

Step-by-step explanation:

3600/4 = 900

900*4 = 3600

Answer:

No, because their respective prices are $0.75 and $2.25

Step-by-step explanation:

Let's assume that the price of each pretzel is x and the price of each soda is y

3x + 4y = 11.25_____ equation 1

5x + 2y = 8.25_____ equation 2

Multiply equation 2 by the figure 2 so as to have both equation sharing the same coefficient of y

10x + 4y = 16.5____ equation 1

3x + 4y = 11.25____ equation 2

Now subtract equation 2 from 1

7x = 5.25

X = 5.25/7

X = 0.75

Now substitute x = 0.75 in equation 1

10x + 4y = 16.5

10(0.75) + 4y = 16.5

7.5 + 4y = 16.5

4y = 16.5 - 7.5

4y = 9

Y = 2.25

Therefore,the cost of each pretzel is $0.75 while that of soda is $2.25

Answer:

a. 38.5

Step-by-step explanation:

The triangles are similar. That means that the ratios are the same.

x/14 = 11/4

x/31.5 = 11/9

Let's use the top one

x/14 = 11/4

4x/14 = 11

4x = 154

x = 38.5

Answer:

-28/45

Step-by-step explanation:

Here, we want to find the result of a division

What we have to do here is to flip the fraction on the right hand side , then change the sign from division to multiplication

We have this as;

4/9 * -7/5

= -28/45

Answer:

A linear function is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

An exponential equation is written as:

y = A*(r)^x

Where A is the initial quantity and r is the rate of growth.

If a and A are both positives, the similar characteristic of both types of functions is that as x increases, then the value of y will also increase. Then both functions are increasing functions.

They are different in how they increase, while a linear function increases at a constant rate, an exponential function increases slow at the beginning and really fast as x increases, as you can see in the image below where we compare the two types of functions, the green one is the linear function, and the blue one is the exponential function.

Answer: I guess High School is as bad as my big sister says it is.

Step-by-step explanation:

I'm in 8th grade, I'm going to highschool this yearrrr! Poor me...

Answer:

I think it's 45 lmk if I'm wrong lol

Answer:

umm i think you are hopefully im right lol

Step-by-step explanation:

(-7+1)/(5-1)=-6/4= -3/2 is the slope

answer is C

Answer:

C

Step-by-step explanation:

The formula for slope is rise/run

Rise is the difference between the y coordinates

Run is the difference between the x coordinates

To find the rise and run:

ex.

(a, b), (c, d)

rise:

d-b

run:

c-a

Slope:

d-b/c-a

In this situation:

rise:

-7-(-1)

run:

5-1

Slope:

-7-(-1)/5-1

= -6/4

=-3/2

So the answer is C

Answer:

y=15x

Assuming he is mowing at a constant rate it would be 15 square feet per minute.

Step-by-step explanation:

Answer:

D; 46 degrees

Step-by-step explanation:

The inscribed angle theorem states that the measure of an inscribed angle is half the measure of its intercepted arc. Arc AC is the intercepted angle of angle ABC. 92/2=46.

Answer:

2 = 25 degrees

Step-by-step explanation:

A right angle is 90 degrees... So, 90-65 helps you find the missing angle.

90-65=25

Angle 2=25

Answer:

The highest rate of birds is during the years 4 to 3

(remember that the lowest digit of number of negative is the highest and the highest is the lowest)

Step-by-step explanation:

Rate of Changes:

1 to 2: 5080.86 - 5238/ 2 - 1

=  -157.14/1

= (convert to decimal) -157.1

2 to 3: 4928.43 - 5080.86/ 3 - 2

= -152.43/ 1

= -152.43

3 to 4: 4780.58 - 4928.43/ 4 - 3

= -147.85/ 1

= -147.85

Answer:

260 dollars

Step-by-step explanation:

The amount after  10 years will be $260.

The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest. It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest. Compound interest is commonly abbreviated C.I. in mathematics.

Given amount invested = $220

rate = 1.7% compounded annually

time = 10 years

the amount is  given by

A = p[tex](1 + \frac{r}{n} )^{nt}[/tex]

r = 1.7% = 0.017

n = 1 for compounded annually

t = 10 years

p = $220

A = 220(1 + 0.017)¹⁰

A = $260.39

A = $260

Hence the amount is $260.

Learn more about compound interest;

https://brainly.com/question/14295570

#SPJ5

Answer:

44

Step-by-step explanation:

5 1/2 = 11/2 = 44/8

Subtract 1/8 from 44/8 until you finish the number all.

Answer:

(m-6) (m-4).

Step-by-step explanation:

m2-6m-4m+24

m(m-4)-6(m-4).

therefore answer is (m-6) (m-4).

Answer:

f(x)=2x is your answer

when x=-9

f(-9)=-9×2=-18

other similar to this.

Answer:

$12 per pair of glass.

$6 per glass.

Step-by-step explanation:

48/8 = 6

A pair is 2, so I multiplied 6 by 2.

6 x 2 = 12

So, Taryn paired $12 per glass.

--

ANSWER: $12 per pair

EXPLANATION: $48 divided by 8 pairs of glasses equals $6 per glasses. So then you multiply 6 by 2 to get the amount per pair.

Save

Answer:

60

Step-by-step explanation:

person above is correct

Answer:

Again its C like i answered before.

Step-by-step explanation:

Cos is adj/hyp and there is only one cos option so it must be correct.

Answer:

[tex]\frac{x}{20}[/tex]

Step-by-step explanation:

Given

[tex]\frac{x}{4}[/tex] - [tex]\frac{x}{5}[/tex]

The LCM of 4 and 5 is 20

= [tex]\frac{5x-4x}{20}[/tex]

= [tex]\frac{x}{20}[/tex]