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3 years ago

[ LOTS OF POINTS ]help me with all 3 questions pls!

Mathematics

2 answers:

IgorC [24]3 years ago

7 0

Answer:

C) if the ratio is 10 to 8 then id be 12 to 10

E) if its 15 to 5 then id be 75 to 25

Step-by-step explanation:

IceJOKER [234]3 years ago

3 0

Answer:

d. 28

Step-by-step explanation:

I'm going to show you how to do these types of problems and the other two you should try by yourself.

There are 63 bikes. The ratio is 4:5 blue to red.

4x+5x=9x

9x=63

x=7

blue: 4x = 4*7=28

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Of a circle: C = nid

gogolik [260]

Answer:

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8 0

2 years ago

I just need help plz

Licemer1 [7]

Answer:

1.4x 2 +7x−9

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2 years ago

Read 2 more answers

What is the written form for (8,8)

Sav [38]

Answer:

81 900 000 000 000 is 8.19 × 10¹³

Step-by-step explanation:

Write the first number 8.

Add a decimal point after it: 8.

Now count the number of digits after 8. There are 13 digits.

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5 0

2 years ago

Use the given transformation to evaluate the integral.

GuDViN [60]

For the transformation

$\begin{cases}x=7u+v\\y=u+7v\end{cases}$

the Jacobian is

$\dfrac{\partial(x,y)}{\partial(u,v)}=\begin{bmatrix}7&1\\1&7\end{bmatrix}$

with determinant

$\det\left(\begin{bmatrix}7&1\\1&7\end{bmatrix}\right)=48$

The vertices of the triangle in the $u,v$ -plane are

$(x,y)=(0,0)\implies(u,v)=(0,0)$

$(x,y)=(7,1)\implies(u,v)=(1,0)$

$(x,y)=(1,7)\implies(u,v)=(0,1)$

Then the integral is

$\displaystyle\iint_R(x-8y)\,\mathrm dA=-48\int_0^1\int_0^{1-v}(u+55v)\,\mathrm du\,\mathrm dv=\boxed{-448}$

3 0

2 years ago

A recipe calls for 2 cups of flour to make 24 cookies. write and solve a proportion to find how much flour is needed to make 54

bekas [8.4K]

2 cups of flour x cups of flour
–––––––––––– = –––––––––––––
24 cookies 54 cookies

cross multiply
2*54=24x
24x=108
x=4.5

4.5 cups of flour

8 0

2 years ago