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bixtya [17]
3 years ago
14

Anna, Laura and David each earn the same monthly salary.

Mathematics
1 answer:
diamong [38]3 years ago
3 0
So convert them all to percentages

Anna: 19%
Laura: 17/20 then times by 5 to get 85%
therefore she saves 15%
David: 2:8 = 2/10 saved = 20%

so david saves the most
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The length of a ribbon is 6/7 meter. Sun Yi needs pieces measuring 1/6 meter for an art project. What is the greatest number of
Strike441 [17]

Answer:

Let's find out!

Step-by-step explanation:

So we have to set up an equation

Let x= # of ribbons that can be cut

Thus:

\frac{1}{6}x =\frac{6}{7} \\x=\frac{6}{7} *\frac{6}{1} \\x=\frac{36}{7}

So, we cannot have 36/7 ribbons! It's not possible!

So we just simplify!

x=5\frac{1}{7}

There we go! She can cut 5 ribbons off!

I'll let you figure out the last one!

Hope this helps!

P.S. Stay Safe!

6 0
3 years ago
2x+3y=-7<br><br><br>Help me write Slope-Intercept form​
shtirl [24]

Answer:

y = -\frac{2}{3}x - \frac{7}{3}

Step-by-step explanation:

Slope intercept form: y = mx + b

To put the equation in slope intercept form, isolate the y:

2x + 3y = -7

3y = -2x - 7

y = -\frac{2}{3}x - \frac{7}{3}

7 0
3 years ago
At a school carnival, the diameter of the mat of a trampoline is 12 feet and the diameter of its metal frame is 14 feet. What is
bulgar [2K]
Find the circumference of the metal frame?

C = pi * d

Where 'd' is the diameter.

In this case, the diameter is 14, because that is the given information from the question.

Plug it in along with 3.14 for pi:

C = 3.14 * 14

C = 43.96

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5 0
3 years ago
Read 2 more answers
The topic is law of cosines and sines and I need help with this
sergiy2304 [10]

Answer:

Answer is 2nd one (20.8)

5 0
3 years ago
Just please answer ASAP thank
anzhelika [568]

Answer:

Each muffin= 1.5; Each quart of milk= 3

Step-by-step explanation:

Let m represent muffins and q quarts of milk, so

8m+2q=18

3m+1q=7.50

*solve*

3m+1q=7.5

    -1q    -1q

3m=-1q+7.5

/3     /3   /3

m=-1/3q+2.5

*replace for m*

8(-1/3q+2.5)+2q=18

-2 2/3q+20+2q=18

-2/3q+20=18

         -20 -20

-2/3q=-2

/-2/3  /-2/3

q=3

*replace to find m*

3m+1(3)=7.50

3m+3=7.5

      -3  -3

3m=4.5

/3     /3

m=1.5

*replace to verify*

8m+2q=18

8(1.5)+2(3)=18

12+6=18

18=18

3m+1q=7.50

3(1.5)+1(3)=7.5

4.5+3=7.5

7.5=7.5

8 0
2 years ago
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