Find the sum.
(-x - 2y - 4z) + (7x - 6y - 6z)

Answers

Answer 1

Answer: −x−2y−4z+7x−6y−6z

=−x+−2y+−4z+7x+−6y+−6z

Combine Like Terms:

=−x+−2y+−4z+7x+−6y+−6z

=(−x+7x)+(−2y+−6y)+(−4z+−6z)

=6x+−8y+−10z

$\bold{6x - 8y -10z}$

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How do you turn 18000 cm3 to kg

Answers

18000cm³

So we start off with 18000cm³, and we need to convert it to kg. Since we don't have a direct conversion for cm³ to kg, we have to use two conversions to solve the problem.

1cm³=1g

1000g=1kg

So we take 18000cm³ and convert it to grams and then convert it to kilograms.

$18000cm^(3)* (1g)/(1cm^3)* (1kg)/(1000g)$

Now we just multiply the top and the bottom values by each other...

$18000cm^(3)* (1g)/(1cm^3)* (1kg)/(1000g)= (18000kg)/(1000)=18kg$

The cm³ and g cancel out, so we're left with 18kg

Answer=18kg

2/3 of the product of 3/8 and 16

Answers

finding the product of 2 numbers means that you have to multiply those numbers

$(3)/(8) * 16$

when multiplying fractions , numerators are multiplied by numerators and denominators by denominators

$(3)/(8)*(16)/(1) = (3*16)/(8*1) = (48)/(8) = 6$

therefore product of 3/8 and 16 is 6

next we have to find 2/3 of 6

'of' operator means multiplication

$(2)/(3) *(6)/(1) = (2*6)/(3*1) = (12)/(3) = 4$

answer is 4

Further explanation

The Problem:

$(2)/(3)$ of the product of $(3)/(8)$ and 16.
Write an expression to match and then evaluate.

The Process:

Here are some early expressions that need attention.

two-thirds is $(2)/(3)$
three-eights is $(3)/(8)$
the product of $(3)/(8)$ and 16 is $(3)/(8) * 16$

The term of "the product" is synonymous with multiplication.

Let us write an expression to match for $(2)/(3)$ of the product of $(3)/(8)$ and 16.

$\boxed{\boxed{ \ (2)/(3) * \bigg( (3)/(8) * 16 \bigg ) \ }}$

And now we evaluate the full expression.

$\boxed{ \ = (2)/(3) * \bigg( (3)/(8) * 16 \bigg ) \ }$

We can cross out 8 and 16.

$\boxed{ \ = (2)/(3) * (3 * 2) \ }$

$\boxed{ \ = (2)/(3) * 6 \ }$

We can cross out 3 and 6.

$\boxed{ \ = 2 * 2 \ }$

Thus, the result is 4.

- - - - - - - - - -

Quick Steps:

$\boxed{ \ (2)/(3) * (3)/(8) * 16 \ }$

$\boxed{ \ (1)/(1) * (1)/(4) * 16 \ }$

$\boxed{ \ (16)/(4) \ or \ 16 / 4 \ }$

$\boxed{\boxed{ \ 4 \ }}$

Learn more

Write an expression to match for 15 times as much as 1 fifth of 12 and then evaluate brainly.com/question/2662877
7 copies of the sum of 8 fifths and 4 brainly.com/question/945784
4 times as much as 3 is brainly.com/question/573729

Keywords: 2/3, the product of 3/8 and 16, write an expression to match, and then evaluate, cross out, two-thirds, three-eights, synonymous with multiplication, the result, 4

Harold buys a backpack thatcosts $24.80. It is on salefor 25% off. Harold also hasa coupon for an additional10% off the lowest price.What is the final price of thebackpack (not including tax)?

Answers

Final price of the backpack (not including tax) = $16.74

Given that

Initial cost of backpack = $24.80

First Discount = 25% off $*$ Initial Cost =$ $24.80 * (25)/(100)$ = $ 6.2

So modified price = 24.80 - 6.2 = $18.6

Also Harold has a coupon with 10% on the modified price.

so we can write 10% of $18.6 = $ 1.86

so we can write the final price for the backpack = 18.6 - 1.86 = $16.74

For more information about discount please refer to the link below

brainly.com/question/2736271

24.80 ÷ 4 = 6.2, and 24.80 - 6.2 = 18.6. With the second coupon, another 1.86 is removed, making the backpack $16.74

Jack has 120 songs on his music player summer rock summer jazz in the restroom classical pieces if his music players on random shuffle mode probability that it will play a classic pieces is 2/5 and the probability that it will play a jazz piece is 1/3 how many songs of each type or on Jack’s music

Answers

48 classic pieces
40 jazz pieces

Please help me i’m very confused

Answers

The ratio of dry rice to water is 1 to 2. This means that water is two times more than dry rice. Since the chef uses 9.5 cups of dry rice, the chef needs 19 cups of water.

You can check by using fractions. 9.5 / 19 in simplified form is 1/2, which is 1:2 in ratio.

It would be 9.5:19 just multiply 9.5 by 2

X+y = 180 degrees of an angle. Write that into an equation of slope intercept form.