All categories

3 years ago

PLEASE HELP!! BRAINLIEST ASAP

Mathematics

1 answer:

belka [17]3 years ago

8 0

Answer:

12+16 = 2(10+4)

Step-by-step explanation:

12+16 = 2(10+4)

You might be interested in

Ile kilogramów solanki 6-procentowej i ile kilogramów 9-procentowej należy zmieszać, aby otrzymać 9 kilogramów solanki 8-procent

viktelen [127]

Answer: solanka 6-procentowa=3 kg

solanka 9-procentowa = 6 kg

Step-by-step explanation:

Let solanka 6-procentowa=x kg

Let solanka 9-procentowa = y kg

So x+y=9

=> x=9-y (1)

6%=0.06 9%=0.09 8%=0.08

So pure salt is 0.06*x +0.09*y= 9*0.08 (2)

Lets put 9-y instead x in (2)

0.06*(9-y) +0.09*y=0.72

0.54-0.06*y +0.09*y=0.72

0.03*y=0.18

y=6kg => x=9-y => x=9-6=3 kg

6 0

4 years ago

Which is the simplified form of the expression (6^-4)^-9/6^6

natima [27]

Given expression: $\frac{((6^{-4})^{-9})}{6^6}$ .

First we would apply exponents of exponent rule on the top.

$(a^m)^n= a^{m\times n}$

Therefore,

$((6^{-4})^{-9}) = (6)^{-4\times -9} = (6)^{36}$

= $\frac{((6^{-4})^{-9})}{6^6} = \frac{6^36}{6^6}$

Applying quotient rule of exponents.

$\frac{a^m}{a^n} = a^{m-n}$

$Therefore \ \frac{6^{36}}{6^6} =6^{36-6}$

= $6^{30}$

<h3>Therefore, $6^{30}$ is the simplified form of the expression $\frac{((6^{-4})^{-9})}{6^6}.$ </h3>

5 0

3 years ago

Read 2 more answers

A sphere and a cylinder have the same radius and height. The volume of the cylinder is . Amie found the volume of the sphere.

RSB [31]

ANSWER

$V_{cone}=\frac{1}{3} \pi t^2k$

EXPLANATION

The volume of a cylinder is given by

$V_{cylinder}=\pi r^2h$

The radius of the given cylinder is r=t.

The height of the cylinder is h=k.

The volume of the given cylinder is

$V_{cylinder}=\pi t^2k$

The volume of a cone with the same base radius and height is

$V_{cone}= \frac{1}{3} \pi t^2k$

7 0

4 years ago

Read 2 more answers

A company rents water tanks shaped like cylinders. Each tank has a radius of 3 feet and a height of 2 feet. The cost is $4 per c

Tatiana [17]

Answer:

$\$226.08$

Step-by-step explanation:

step 1

Find the volume of the tank (cylinder)

The volume of cylinder is given by the formula

$V=\pi r^{2}h$

we have

$r=3\ ft\\h=2\ ft\\\pi=3.14$

substitute

$V=(3.14)(3)^{2}(2)$

$V=56.52\ ft^3$

step 2

Find the cost of rent one tank

Multiply the volume of one tank by the unit rate of $4 per cubic foot

$56.52(4)=\$226.08$

7 0

3 years ago

Jason is only able to work 28 hours a week this month (at $12 an hour) so he is worried that he will be in a bind paying his bil

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

28 x 4=112

112 x 12= 1344

1344-875-330-130=9

6 0

3 years ago

Read 2 more answers