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3 years ago

The diagram below shows some 1-inch cubes placed in a box.

Mathematics

2 answers:

kupik [55]3 years ago

8 0

<h2>Answer:</h2>

120

<h2>Step-by-step Explanation:</h2>

5 x 8 = 40

40 x 3 = 120

now, 120 x 1 = 120.

theres your answer.

IRINA_888 [86]3 years ago

4 0

Answer:

Step-by-step explanation:

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What is the value of x?<br> A. 52/3<br> B.3/4<br> C.17<br> D. 52/7

MrRa [10]

Answer:

Step-by-step explanation:

look at the x and y axis

5 0

3 years ago

A farmer fills his field proportionately with soybeans and corn. Last year he planted 200 acres of corn and 50 acres of soybeans

malfutka [58]

Answer:

Part A) Is a directly proportional

Part B) The constant of proportionality is $k=0.25$

Part C) The equation is $y=0.25x$

Part D) $62.5$ acres of soybeans

Step-by-step explanation:

Part A) Are the number of acres of corn and the number of acres of soybeans directly proportional or inversely proportional?

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$

Let

x-----> the number of acres of corn

y----> the number of acres of soybeans

$y/x=k$

if the number of acres of corn increases then the number of acres of soybeans increases

if the number of acres of corn decreases then the number of acres of soybeans decreases

therefore

The relationship is a directly proportional

Part B) What is the constant of proportionality?

we have that

For x=200, y=50

substitute

$y/x=k$

$k=50/200$

$k=0.25$

Part C) Let x equal the number of acres of corn and y equal the number of acres of soybeans. Write an equation to show this relationship.

The linear equation that represent the direct variation is equal to

$y/x=k$

we have

$k=0.25$

substitute

$y/x=0.25$

$y=0.25x$

Part D) How many acres of soybeans can the farmer plant this year if he plants 250 acres of corn?

For x=250

Find the value of y

substitute in the linear equation the value of x and solve for y

$y=0.25(250)=62.5$ -----> acres of soybeans

7 0

3 years ago

Last week, there were 420 new subscribers to a Web site. This week, the number of new subscribers decreased by 5%. How many new

zlopas [31]

Answer:

x = 399 new subscribers

Step-by-step explanation:

Let 420 = 100%

x = 95%

420*95 = 100x

x = 420*95/100

x = 399 new subscribers

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3 years ago

Solve 3x2 + 4x = 2<br>I need it solved with the quadratic formula

lisabon 2012 [21]

3x2+4x=2
6+4x=2
-6 -6
4x=-4
4 4
x=-1

8 0

3 years ago

Which one is correct

bekas [8.4K]

Answer:

Bart is correct

Step-by-step explanation:

5 0

3 years ago