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satela [25.4K]
3 years ago
12

3x+8y+13x=?????????????

Mathematics
2 answers:
mr Goodwill [35]3 years ago
5 0

Answer:

8y+16x

Step-by-step explanation:

First combine like terms

3x and 13x can be added together to get 16x

8y+16x

is the simplest it can go

laiz [17]3 years ago
3 0
3x time. =============3
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Si Mark ay nakagawa ng 84 na pirasong cookies. Kung ang mga ito ay kaniyang isisilid sa 7 maliliit na kahon. Ilang
yawa3891 [41]
1. Nakagawa siya ng 84 na cookies.
2. Inilagay niya ang mga cookies sa 7 na kahon.
3. 84 ÷ 7 = 12
4. 12 x 7 = 84
5. Ang bawat lalagyan ay may 12 na cookies sa loob nito.
3 0
3 years ago
HELPPPP
AleksandrR [38]

Answer:

<h2>18.750kg</h2>

Step-by-step explanation:

If a mass of 2.5 grams costs a penny, we want to know the amount of mass that will cost $75.  Before we get the mass, we need to convert 75 dollars to penny. Using the conversion:

$1 = 100pennies

$75 = (75*100)pennies

$75 = 7,500 pennies

Using the law of equivalence

1 penny = 2.5 grams

7,500pennies = x grams

Cross multiply

1 * x = 2.5 * 7500

x = 18,750 grams

Hence 18,759 grams will cost $75

Converting grams to kilograms

If 1000 grams = 1kg

18,750grams -= y

cross multiply

1000*y = 18750

Divide both sides by 1000

1000y = 18750/1000

y = 18.750kg

<em>Hence the amount in kilogram of $75 coin in pennies is 18.750kg</em>

3 0
4 years ago
Mrs. Ming invested an amount of money in two accounts for one year. She invested some at 8% interest and the rest at 6%
Alex777 [14]
The answer is 117 (-:
8 0
3 years ago
Solve x2 – 14x + 31 = 63 for x.
GaryK [48]
Step 1: Subtract 63 from both sides.<span><span><span><span><span>x2</span>−<span>14x</span></span>+31</span>−63</span>=<span>63−63</span></span><span><span><span><span>x2</span>−<span>14x</span></span>−32</span>=0</span>Step 2: Factor left side of equation.<span><span><span>(<span>x+2</span>)</span><span>(<span>x−16</span>)</span></span>=0</span>Step 3: Set factors equal to 0.<span><span><span>x+2</span>=<span><span><span>0<span> or </span></span>x</span>−16</span></span>=0</span><span><span>x=<span>−<span><span>2<span> or </span></span>x</span></span></span>=16</span>Answer:<span><span>x=<span>−<span><span>2<span> or </span></span>x</span></span></span>=<span>16</span></span>
6 0
3 years ago
Read 2 more answers
Can i get some help pwease
TEA [102]

Answer:

Hey!

Your answer is Y=-5x-6

Step-by-step explanation:

Using the formula y=mx+c...

m=slope c=y-intercept

The coordinate s(the c) it's given you are the coordinates for the y-intercept so we only write the y-value down (the -6)

The m is the slope do we write the slope value (-5)

Which forms y=-5x-6

HOPE THIS HELPS!!

4 0
4 years ago
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