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KATRIN_1 [288]
3 years ago
7

I wil give brainleiat

Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

a) 300 + 80h = x

b) $780

Step-by-step explanation:

So, the original cost is $300, plus an additional $80 times the number of hours rented.

h will represent the number of hours rented

x will represent our total cost (use whatever variable your teacher expects :))

300 + 80h = x

This is our equation. Now, we want to find the cost for 6 hours. Substitute 6 in for h.

300 + 80(6) = x        Solve for x.

 300 + 480 = x

            780 = x        This means the total cost for 6 hours will be $780.

Hope this helps :)

NOTE: I noticed in part a, it referred to a "dunking booth". I solved this problem as if that was a typo and they were referring to the jumper.

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Marla's breakfast was 525 calories. This was 35% of her total calories for the day. How many calories did she have that day?
wlad13 [49]

Answer:

1500

Step-by-step explanation:

525 is 35% of x, and we want to find x! (or, 100% of x)

So.

We set up an equation:

525 = 0.35x

How do we get to:

smth = 1.00x?

We divide both sides of the equation by 35, so it looks like this:

15 = 0.01x

And then we multiply both sides of the equation by 100, so it looks like this!

1500 = x

which means that Marla consumed 1500 calories that day.

Hope that helps!

8 0
3 years ago
What is 3√ 7^3 in exponential form?
Mama L [17]
The exponential form is just 7.
6 0
3 years ago
Megan spent $9.85 on ingredients to make one pan of cereal bar and has a length of 24 inches and a width of 16 inches. Megan nee
masya89 [10]

Answer:

96 bars = 10cent each (dime/pence etc) 10.2604166667 each

Step-by-step explanation:

if the cereal bars are accounted for 24inch x 4inch and 4inch lengths seem appropriate length, Then we can account for 1inch x 16 inch widths being 1'' wide each. 6 x 16 = 96 and 96/388 = 4 being the length.

Extended: Area of pan 24 x 16 = 240+148= area of 388in^2

96 bars costing ($9.85) 985/96

3 0
4 years ago
compute the value of the discriminant and give the number of real solutions of the quadratic equation. -2x²+3x+5=0
SCORPION-xisa [38]

Given a quadratic equation in standard form

y=ax^2+bx+c

The discriminant D

D=b^2-4ac

tells the types of roots the equation has.

In this case, we have

\begin{gathered} -2x^2+3x+5=0 \\ a=-2 \\ b=3 \\ c=5 \end{gathered}

Then, the discriminant of this quadratic equation will be

\begin{gathered} D=b^2-4ac \\ D=(3)^2-4(-2)(5) \\ D=9+40 \\ \mathbf{D=49} \end{gathered}

Finally, the value of discriminat is 49 and as he discriminant is greater than zero then this quadratic equation has 2 different real solutions.

8 0
1 year ago
Please help ASAP!!!! 10 points Complete the situate to form a true equation. X^2 -14x+__=(x-__)^2
mylen [45]

Answer:

x^2-14x+49=(x-7)^2

Step-by-step explanation:

This is completing the square

X^2 -14x+__=(x-__)^2

x^2-14x+49=(x-7)^2

-14/2=7

7^2=49

8 0
4 years ago
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