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Romashka-Z-Leto [24]

3 years ago

14

Divide 18 counters into 3 equal groups how many counters are in each group?SHOW YOUR WORK

2 answers:

Verizon [17]3 years ago

5 0

Eighteen divided by three is an easy division question in. The answer to 18 divided by 3<span> is equal to 6.With counters you should count out 18 then take out 3 then another 3,then another 3,then another three,then another 3, then another 3.You should have took out 6 groups of 3.</span>

Kryger [21]3 years ago

5 0

18/3=6
6 countries in each group

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Two buses leave a station at the same time and travel in opposite directions. One bus travels 15 mph faster than the other. If t

Artemon [7]

Answer:

46 mph and 61 mph

Step-by-step explanation:

Distance=speed*time

Let speed of one bus be x and another x+15

After 3 hours

First bus would have traveled 3x while second bus 3(x+15)=3x+45

Total distance= 3x+3x+45=6x+45

6x+45=321

6x=321-45=276

x=276/6=46 mph

x+15=46+15=61 mph

4 0

3 years ago

X+78=3x-2 <br> ..................

photoshop1234 [79]

Answer:

$x=40$

Step-by-step explanation:

$x+78=3x-2\\\mathrm{Subtract\:}78\mathrm{\:from\:both\:sides}\\x+78-78=3x-2-78\\x=3x-80\\\mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides}\\x-3x=3x-80-3x\\\\$

$-2x=-80\\\frac{-2x}{-2}=\frac{-80}{-2}\\x=40$

6 0

3 years ago

Use the X method to find the solutions of<br> 62 + 2x - 20 = 0.

inysia [295]

Answer:

x = -21

Step-by-step explanation:

62 + 2x - 20 = 0.

Combine like terms

42 +2x =0

Subtract 42 from each side

42-42 +2x = 0-42

2x = -42

Divide each side by 2

2x/2 = -42/2

x = -21

3 0

2 years ago

Read 2 more answers

A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 lit

FromTheMoon [43]

Let

x-------> the amount of $2\%$ solution

y--------> the amount of $7\%$ solution

we know that

$2\%=0.02\\7\%=0.07\\3.5\%=0.035$

so

$x+y=1$

$y=1-x$ -------> equation A

$0.02x+0.07y=0.035$ -------> equation B

substitute equation A in equation B

$0.02x+0.07(1-x)=0.035$

$0.02x+0.07-0.07x=0.035$

$0.05x=0.035$

$x=0.7\ liters$

find the value of y

$y=1-x$

$y=1-0.7=0.3\ liters$

therefore

The student need $0.7\ liters$ of $2\%$ solution and $0.3\ liters$ of $7\%$ solution

<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

8 0

3 years ago

Read 2 more answers

ayoo nye here i was useing this app for this work and this is what got that is not okay so if you just going to say hi or hello

Korvikt [17]

Answer:

i belive you are right

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers