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3 years ago

Chloe has 20 units cubes how many different rectangle or prism can you build with the cubes

Mathematics

1 answer:

lana66690 [7]3 years ago

6 0

Hey there, well we know that 1×4×5=20, and 20÷5=4. Therefore, Chloe can make 4.

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8 more than 5 times a number is -27

Romashka [77]

8 + 5n = -27

5n = -35

n = -7

7 0

3 years ago

PLS HELP gIVING BRAINLIEST

Mandarinka [93]

Answer: i think it's b

Step-by-step explanation:

4 0

2 years ago

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Chantal bicycles at a speed of 20 miles per hour and has already riden 45 miles when Trisha begins cycling. Trish bicycles at a

melomori [17]

Answer:

Chantal and Trisha will have both traveled 105 miles in 20 minutes.

Step-by-step explanation:

$y$ is distance in miles, $x$ is time in hours.

The two equations are:

$y = \frac{20}{x} + 45$

$y = \frac{35}{x}$

Set them equal to each other and solve for x:

$\frac{35}{x} = \frac{20}{x} + 45$

$\frac{35}{x} - \frac{20}{x} = 45$

$\frac{35-20}{x} = 45$

$\frac{15}{x} = 45$

$x = \frac{15}{45} = \frac{1}{3} hours = 20 minutes$

Plug that back into the equations to confirm this $x$ gives the same $y$ :

$y = \frac{20}{1/3} + 45 = 105 miles$

$y = \frac{35}{1/3} = 105 miles$

4 0

2 years ago

The sum of three numbers is 51 . the second number is 2 times the third. the third number is 9 more than the first. what are the

hammer [34]

X+y+z=51

y=2z
z=9+x

subsitute those

x+2z+9+x=51
x+2(9+x)+9+x=51
x+18+2x+9+x=51
4x+27=51
minus 27 both sides
4x=24
divide by 4
x=6

sub back

z=9+x
z=9+6
z=15

y=2z
y=2(15)
y=30

the numbers are
6,30,15

8 0

3 years ago

Read 2 more answers

What is the value of x? A. 25° B. 50° C. 55° D. 75° E. 80°

Troyanec [42]

Answer:

<h2>Option B</h2><h2>x = 50° </h2>

Step-by-step explanation:

By the condition, 

25° + 105° + x = 180° [Angle sum property of triangle]

=> 130 + x = 180

=> x = 180 - 130

=> x = 50° (Ans)

6 0

3 years ago

Read 2 more answers