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3 years ago

Can somebody please help me 8th grade math puzzle

Mathematics

1 answer:

Naddika [18.5K]3 years ago

8 0

Burrito: 20
hot sauce: 80
taco: 400

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Could you please help me with this? It’s a problem from my grandson’s homework.

gulaghasi [49]

SOLUTION

From the question given, the cost of the toy truck is $36.50 before tax.

Now, the store selling the toy truck adds a 6% sales tax. This means

$\begin{gathered} 6\%\times36.50 \\ =\frac{6}{100}\times36.50 \\ =\frac{6\times36.50}{100} \\ =\frac{219}{100} \\ =2.19\text{ dollars} \end{gathered}$

Now, we will add this $2.19 to the initial cost, we have

$2.19+36.50=38.69$

This gives $38.69.

Finally we will do a discount of 10%. 10% discount is

$\begin{gathered} 10\%\times38.69 \\ \frac{10}{100}\times38.69 \\ =\frac{10\times38.69}{100} \\ =\frac{386.9}{100} \\ =3.869 \end{gathered}$

We will then subtract this 3.869 from 38.69, we get

$\begin{gathered} 38.69-3.869 \\ =34.821 \end{gathered}$

That is 34.821. The 1 which is the last number at the decimal part is less than 5, so we ignore it and our answer becomes $34.82

3 0

1 year ago

The graph shown below is a scatter plot:

KengaRu [80]

Point L because it is not in the same pattern as the others. It is on its own.

3 0

3 years ago

The Wilsons drove 324 miles in 6 hours if they drilled the same number of miles each hour how many miles did they drive in 1 hou

krok68 [10]

They would have traveled 54 miles
324/6=54

8 0

2 years ago

Find the exact area of a circle having the given circumference.

blagie [28]

Answer:

Step-by-step explanation:

The formula of an area of a circle:

$A=\pi r^2$

r - radius

The formula of a circumference of a circle:

$C=2\pi r$

We have:

$C=3\pi$

Substitute:

$2\pi r=3\pi$ divide both sides by 2π

$r=1.5$

Substitute:

$A=\pi(1.5)^2=2.25\pi$

3 0

3 years ago

Please explain how to do this

Nat2105 [25]

Answer:

61%

Step-by-step explanation:

Area of square:

=a²

=12²

=144

Area of two quarter circles:

=2(¼×π×r²)

=2(¼×π×6²)

=2×28.72

=56.55

Finding the percentage:

=(56. 55÷144)×100

=0.3937×100

=39.27

subtract 100% by 39.27% to find the percentage of how much is shaded

=100-39.27

=60.73

=61 (rounded off to the nearest whole percent)

5 0

3 years ago

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