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3 years ago

3 x 2 x 4 + 2 - 23 + 7 x 2

Mathematics

1 answer:

Fantom [35]3 years ago

4 0

Answer:

17.....

....................

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Simply 20-3[4(z+1)-6(z-2)]

creativ13 [48]

Answer:

The answer is 6z-28

Step-by-step explanation:

20 - 3[4(z+1) - 6(z-2)]

= 20 - 3(4z+4-6z+12)

= 20 - 3(16 - 2z)

= 20 - 48 + 6z

= 6z - 28

8 0

3 years ago

Cristina has completed .4 of his test. The test has 40 questions total. if he completes 12 more how many more will he have left?

bixtya [17]

24 because she already completed four and if she completes twelve more that that will be 24 hope that helps

5 0

3 years ago

Solve the system of equations.

sveta [45]

Answer: B. (-1,3) and (2,6)

Step-by-step explanation:

I just found the points they met on the graph

3 0

3 years ago

Read 2 more answers

Cuál es el valor que tiene x

salantis [7]

Answer:

I might be wrong double check but it's something like

Step-by-step explanation:

4x/3-40/3

(not to sure on that so don't be mad if it's wrong)

6 0

3 years ago

Rectangles J and K are similar. If the area of rectangle J is 440, what is the area of rectangle K? I need this today

Hunter-Best [27]

Answer:

$Area = 27.5$

Step-by-step explanation:

Given

$J_{Area} = 440$

$J_{Width} = 22$

$K_{Width} = 5.5$

<em>See attachment</em>

Required

Determine the area of K

First, we need to calculate the length of the rectangle J

$J_{Length} * J_{Width} = J_{Area}$

This gives:

$J_{Length} * 22 = 440$

Divide both sides by 22

$\frac{J_{Length} * 22}{22} = \frac{440}{22}$

$J_{Length} = 20$

So, the length of the rectangle J is 20.

Since both shapes are similar, then:

$J_{Length} : J_{Width} = K_{Length} : `K_{Width}$

Substitute the known values:

$20 : 22 = K_{Length} : `5.5$

Express as fraction:

$\frac{20 }{ 22 }= \frac{K_{Length} }{ `5.5}$

Make Length, the subject of formula

$K_{Length} = \frac{5.5 * 20}{22}$

$K_{Length} = \frac{110}{22}$

$K_{Length} = 5$

The area of K is:

$Area = K_{Length} * K_{Width$

$Area = 5.5 * 5$

$Area = 27.5$

4 0

3 years ago