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3 years ago

How do you solve 15+b=23

Mathematics

1 answer:

nexus9112 [7]3 years ago

5 0

You can solve it with the numbers you already have.

so, 23 - 15 = 8

so 15 + 8 = 23

b is 8 (:

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Someone please help this is due tomorrow;(

nevsk [136]

Sorry if my handwriting sloppy.

I showed all of it step by step.

7 0

3 years ago

Help please n ty :P<br> sdhgfahedgewkgfzndb

Ugo [173]

Answer:

$y=-3.2\\\\y=-2.2\\\\y=-1.8$

Step-by-step explanation:

Insert the given x values for the given equation to find the corresponding y coordinate:

$y=0.2x-2$

$x:-6,-1,1$

Insert -6:

$y=0.2(-6)-2$

Simplify multiplication (when multiplying a negative and a positive, the result will always be negative):

$y=-1.2-2$

Simplify (when subtracting from a negative number, add the values, but keep the negative symbol):

$y=-3.2$

Insert -1:

$y=0.2(-1)-2\\\\y=-0.2-2\\\\y=-2.2$

Insert 1:

$y=0.2(1)-2\\\\y=0.2-2\\\\y=-1.8$

:Done

3 0

2 years ago

Reduce 7y + 2y 2 - 7 by 3 - 4y.

NARA [144]

Answer:

D. $2y^2+11y-10$ .

Step-by-step explanation:

Given:

We need to reduce $7y+2y^2-7$ by $3-4y$

Solution:

To reduce the equation means we need to subtract the one equation from other.

First we will arrange the equation n proper format we get;

$2y^2+7y-7$ ⇒ equation 1

Also Arranging other equation we get;

$-4y+3$ ⇒ equation 2

Now we will subtract equation 2 from equation 1 we get;

$(2y^2+7y-7)-(-4y+3)$

Now Applying distributive property for the sign we get;

$2y^2+7y-7+4y-3$

Now Arranging the like terms we get;

$2y2+7y-+4y-7-3\\\\2y^2+11y-10$

Hence the reduce form of the given equation is $2y^2+11y-10$ .

7 0

3 years ago

WICH EQUATION CAN BE USED TO FIND THE AREA OF THE RECTANGLE

allsm [11]

Answer:

A = L x W

Step-by-step explanation:

<em>Because the equation of a rectangle is understood the best way to help you understand the equation of l*w is to break down the definiton of a rectangle.</em>

Defining a rectangle:

The rectangle is a quadrillateral with two parallel sets of sides which are perpendicular to each other.

Understanding it:

Now let's look at a rectangle

Let's say the length is 5 units and the width is 10 units.

To find that meat in between we understand that 5 units of length extends through all 10 units of the width. This means 5 is carried out for 10 units meaning that 5x10 is the area of the Rectangle. As such the area would be 50

So the area of a rectangle is its length times its width

5 0

3 years ago

What is 2 and 3/5 equal to in decimals

MaRussiya [10]

The answer is 2.6, 2 is whole number so it is put first and the fraction
$\frac{3}{5} = 0.6$
if you add them together you get the answer of
$2.6$

5 0

3 years ago

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