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3 years ago

Asking for help on this bad boy

Mathematics

2 answers:

UkoKoshka [18]3 years ago

8 0

4 and 2/3

14/3 gives 4 wholes (4x3=12) leaving 2 of the 3.

il63 [147K]3 years ago

4 0

4.6 miles each day i believe

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Plzzzz answer fast it’s for test find the unknown Angle measure

Alexeev081 [22]

Answer:

x =180-(90+46)

=180-136

=44

6 0

3 years ago

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A rectangle has a diagonal 15 cm and one side 8 cm finde the perimeter p of the rectangle

snow_lady [41]

Consider the right angles triangle with hypotenuse 15 and leg 8 cm formed by drawing the diagonal.

The other leg (x) will be the other side of the rectangle and , by Pythagoras we have:-

15^2 = 8^2 + x^2

x^2 = 225 - 64

x^2 = 161

x = 12.69 cms

So the perimeter p = 2*8 + 2* 12.69

= 16 + 25.38

= 41.38 cms (answer)

6 0

3 years ago

Read 2 more answers

Billy plans to paint baskets. The paint costs $14.50. The baskets cost $7.25. Write an equation that gives the total cost as a f

andreyandreev [35.5K]

Let 'x' represent the number of baskets and let 'y' be the total cost.

Since the paint costs 14.50 and each basket cost 7.25, then we have the following function:

$y=7.25x+14.50$

To find the cost of 4 baskets, we can make x = 4 and solve for y:

$\begin{gathered} x=4 \\ \Rightarrow y=7.25(4)+14.50=29+14.50=43.50 \\ y=43.50 \end{gathered}$

therefore, the cost of painting 4 baskets is $43.50

7 0

1 year ago

mckenna and lara work for their uncle eddie, who repairs skateboards and bicycles. uncle eddie is leaving for a vacation to the

juin [17]

The correct answer is:

15 bicycles and 6 skateboards.

Explanation:

Let x represent the number of bicycles and y represent the number of skateboards. The first equation in our system is then

x+y = 21, since there are 21 total items in the shop.

Each bicycle has 2 tires and each skateboard has 4; this gives us the equation

2x+4y=54 (because they are ordering 54 tires).

This makes our system

$\left \{ {{x+y=21} \atop {2x+4y=54}} \right.$

We will use elimination to solve this; we first need one of the variables to have the same coefficient in both equations. We will make x the same, and we will do this by multiplying the first equation by 2:

$\left \{ {{2(x+y=21)} \atop {2x+4y=54}} \right. \\
\\\left \{ {{2x+2y=42} \atop {2x+4y=54}} \right.$

Now we will subtract the second equation from the first one:

$\left \{ {{2x+2y=42} \atop {-(2x+4y=54)}} \right. \\
\\-2y=-12$

Divide both sides by -2:

-2y/-2 = -12/-2

y = 6

There were 6 skateboards. Substituting this into the first equation,

x+6 = 21

Subtract 6 from each side:

x+6-6 = 21-6

x = 15

There were 15 bicycles.

3 0

3 years ago

The sum of the areas of two circles is 80 pie square meters. Find the length of a radius of each circle if one of them is twice

Svetach [21]

Answer:

The radius of the circles are $4\ m$ and $8\ m$

Step-by-step explanation:

Let

x-----> the radius of larger circle

y----> the radius of smaller circle

we know that

$\pi x^{2} +\pi y^{2}=80\pi$

$x^{2} +y^{2}=80$ -----> equation A

Remember that

$x=2y$ -----> equation B

substitute equation B in equation A and solve for y

$(2y)^{2} +y^{2}=80$

$4y^{2} +y^{2}=80$

$5y^{2}=80$

$y^{2}=16$

$y=4\ m$

Find the value of x

$x=2y$

$x=2(4)=8\ m$

therefore

The radius of the circles are $4\ m$ and $8\ m$

4 0

3 years ago