There are 15 black mice in a cage. The ratio of all mice to black mice is 5:1. How many mice are in a cage?

Answers

Answer 1

Answer: 15x5=75 mice in a cage

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I’m pretty sure i know how to do this but this test is 45% of my current grade so i’d like to make sure everything is right! thank you-3(b-3)=-3b+1

Answers

Answer:

-3(b-3) = -3b +9

Step-by-step explanation:

-3(b-3) = -3b +9

-3 x b = -3b

-3 x -3 = +9

I hope this is helpful

An adult elephant drinks about 225 liters of water each day. Is the number of days the water supply lasts proportional to the number of water the elephant drinks

Answers

Answer:

yes

Step-by-step explanation:

Solve.2x + 6 ≥ –4

A.
x ≤ –5

B.
x ≥ –8

C.
x ≤ –8

D.
x ≥ –5

Answers

Hello,

Answer D

2x+6>=-4
==>2x>=-10
==>x>=5

To multiply or divide a number by 10,000, how many places should you move the decimal point?A : four
B : three
C : two
D : one

Answers

the answer is 4 ur welcome

A rectangle has an area of 40 square units. The length is 6 units greater than the width.

Answers

Let

x------> the length of the rectangle

y------> the width of the rectangle

A-----> area of the rectangle

we know that

The area of rectangle is equal to

$A=x*y\nA=40\ units^(2)$

$40=x*y$ --------> equation $1$

$x=6+y$ --------> equation $2$

Substitute equation $2$ in equation $1$

$40=[6+y]*y\n 40=6y+y^(2) \ny^(2) +6y-40=0$

using a graph tool-----> to resolve the second order equation

see the attached figure

the solution is

$y=4$

Find the value of x

$x=6+y\n \n x=6+4=10\ units$

therefore

the answer is

The length of the rectangle is equal to $10\ units$

The width of the rectangle is equal to $4 \ units$

possible dimensions:
40 x 1
20 x 2
4 x 10
5 x 8

since 10 is 6 more than 4, the length is 10 and the width is 4

If c=12 find a right triangle 90 degrees 45 degrees 45 degrees

Answers

If is a triangle 90°, 45°, 45° then the sides are in ratio 1 : 1 : √2.

If c = 12 is a hypotenuse, therefore we have the equation:

$a\sqrt2=12\ \ \ \ |\cdot\sqrt2\n\n2a=12\sqrt2\ \ \ \ |:2\n\n\boxed{a=6\sqrt2}$

If c = 12 is a leg, therefore we have:

$\boxed{a=12\sqrt2}$

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