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balandron [24]
3 years ago
10

Shaela can solve 20 one-step equation problems in 3 minutes. How many seconds does it take her to solve one problem?

Mathematics
2 answers:
irinina [24]3 years ago
4 0

Answer:

.67 secounds

Step-by-step explanation:20/3

marin [14]3 years ago
3 0
60 second = 1 minute
3 * 60 = 180 seconds
180/20 = 9
Solution: 9 seconds
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Complete the equation of the line through (-9,7) and (-6,-3)
Mila [183]

Answer:



Step-by-step explanation:

In point slope form, the equation is y-7=(-10/3)(x+9).  In slope-intercept form, it is y=(-10/3)x-23.

First find the slope of the line.  The formula for slope is

m=(y₂-y₁)/(x₂-x₁)

Using our points, we have 

m=(-3-7)/(-6--9) = -10/3

Plug this into point slope form:

y-y₁=m(x-x₁)

y-7=(-10/3)(x--9)

y-7=(-10/3)(x+9)

Using the distributive property:

y-7=(-10/3)*x+(-10/3)*9

y-7=(-10/3)x-90/3

y-7=(-10/3)x-30

Add 7 to both sides:

y=(-10/3)x-23

7 0
3 years ago
Helena needs 3.5 cups of flour per loaf of bread and 2.5 cups of flour per batch of muffins. She also needs 0.75 cup of sugar pe
Alik [6]
The amount she has in hand, she can make 4 loaves of bread and 2 batches of muffins.
Hope this will help a lot!
4 0
4 years ago
Read 2 more answers
A geologist visits 40 volcanoes in Alaska and California. 15% of the volcanoes are in California.
kotegsom [21]

Answer:

<h2>Most explained:</h2>

40% = 100%

15 = (100% - 15% = 85%) 85% in Alaska

California = 15% of 40 = (0.15 x 40) = 6

Alaska = 85% of 40 = (0.85 x 40) = 34

<h2>The simple way (or the way i found it simple):</h2>

<h3>40 - 15 = 34</h3><h3>15% of 40 = 6</h3>

<h3>(I found the simple way after i solve the first way)</h3>

Bye, i hope this helps.

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3 years ago
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To find volume you use the formula length×widght×height
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5 0
4 years ago
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What is a gcf for 216 and 54 drawing?
Verizon [17]
Your answer is 54, the drawing is a bit wrong because I did the prime factor tree of 54 wrong, so you'd do 2 × 3 × 3 × 3 which is 54.

5 0
3 years ago
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