All categories

3 years ago

Please answer this correctly

Mathematics

2 answers:

Burka [1]3 years ago

8 0

Answer:

Step-by-step explanation:

Bring the like term together and add them

8r + 7 + 6 +r = 8r + r + 7 + 6

= 9r + 13

Aleksandr-060686 [28]3 years ago

5 0

Answer:

9r+13

Step-by-step explanation:

To solve this question, all we need to do is simplify the equation.

The equation is 8r+7+4+r. To simplify, we need to add like terms.

8r+r+7+4=9r+13

9r+13 is the equivalent equation to 8r+7+4+r.

Hope this helps!

You might be interested in

Essential Question

alexira [117]

Answer:

First, make a list of the possible outcomes for each flip. Next, count the number of the possible outcomes for each flip. There are two outcomes for each flip of a coin: heads or tails.

Step-by-step explanation:

these are just a few

7 0

2 years ago

I need this one too

iren2701 [21]

Answer:

i would say 42

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Melissa walked at a rate of 88 feet per minute. what was her approximate speed to the nearest tenth of a mile per hour? 0.1 mile

Setler [38]

88x60=5280
I believe it's 1 mile.

6 0

2 years ago

Read 2 more answers

The population of center city is modeled by exponential function f, where x is the number of years after the year 2015

Vladimir [108]

Find the ratio of the area to the square radius for each circle.

6 0

2 years ago

In a bag there are 10p coins, 20p coins and 50p coins

Scrat [10]

Answer:

Approximately 25p (please change to pounds by yourself I'm not European, sorry).

Ok so according to my research its 100 pence to one pound. Which will mean that 25p in pounds is £ 00.25

Step-by-step explanation:

<h3>let's say:</h3><h3>10p= <em>x</em></h3><h3>20p=<em> </em><em>y</em><em> </em></h3><h3>50p= <em>z</em><em> </em></h3><h3>'3 fewer 20p (<em>y</em><em>)</em><em> </em>coins than 10p (<em>x</em>) coins'</h3><h3>Therefore:</h3><h3>y-3=<em>x</em><em> </em></h3><h3>and <em>y</em>= <em>x</em>+3</h3><h3>'7 more 50p coins (<em>z</em>) than 10p coins (<em>x</em>)'</h3><h3>That is:</h3><h3><em>z</em>+7= <em>x</em></h3><h3><em>z</em><em>=</em><em> </em><em>x-7</em></h3><h3>'altogether are 61 coins'</h3><h3><em>x</em><em>+</em><em>y</em><em>+</em><em>z</em><em> </em><em>=</em><em> </em>61 </h3><h3>(substitute for y and z)</h3><h3><em>x</em><em> </em>+ <em>x</em><em> </em>+ 3 + <em>x</em><em> </em>- 7 = 61</h3><h3><em>x</em><em>+</em><em>x</em><em>+</em><em>x</em><em>+</em><em>3</em><em>-7</em><em> </em><em>=</em><em> </em>61</h3><h3>3<em>x</em><em> </em>- 4= 61</h3><h3>3<em>x</em>= 61 + 4</h3><h3>3<em>x</em>=65</h3><h3><em>x</em>= 65÷3</h3><h3><em>x</em>= (approximately) 21.6 </h3><h3>(Substitute <em>x</em><em> </em>in <em>y</em><em> </em>and <em>z</em>)</h3><h3><em>y</em><em> </em><em>=</em><em> </em><em>x</em><em>+</em>3</h3><h3><em>y</em><em> </em>= 21.6 + 3 = 24.6 (approximately 25)</h3><h3><em>z</em><em> </em><em>=</em><em> </em><em>x</em><em> </em>-7</h3><h3><em>z</em><em>=</em><em> </em>21.6-7= 14.6 (approximately 15)</h3><h3>y= 20p </h3><h3>y= 25p (approximately)</h3><h3 /><h3><u>Check</u><u> </u></h3><h3>x+y+z= ?</h3><h3>21.6 + 24.6 + 14.6= 60.8 (approximately 61)</h3>

(Sorry I couldn't change to pounds)

And I tried to explain as much as possible, you can ask if you're confused.

5 0

2 years ago