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baherus [9]
3 years ago
15

Please help solve, 7th grade work (see image)

Mathematics
1 answer:
lozanna [386]3 years ago
8 0

Answer:

F) 63

Step-by-step explanation:

Find the original total stories 10 + 8 + 16 + 8 = 42.

Original ratio of Mary's stories to total stories is 8/42 or 4/21.

Then form equation 4/21 = 12/x ; multiply both sides of 4/21 by 3.

4/21 = 12/63

The students need to write 63 stories to keep the ratio of Mary's stories to total stories the same.

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30 \div \frac{1}{3} 30÷ 3 1 ​
ioda

Answer:

<h2>90</h2>

Step-by-step explanation:

30 \div \frac{1}{3} \\\\\mathrm{Convert\:element\:to\:fraction}:\quad \:30=\frac{30}{1}\\=\frac{30}{1}\div \frac{1}{3}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}\\=\frac{30}{1}\times \frac{3}{1}\\\\\mathrm{Apply\:rule}\:\frac{a}{1}=a\\=30\times \:3\\\\=90

7 0
2 years ago
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Juan is rappelling down a 495-foot cliff. He moves down the cliff at a rate of 6 feet per second. Which equation would represent
AlladinOne [14]
Where he started (495) minus 6 feet per second (-6t) till he gets to the ground (=h)
Put them together: 495-6t=H :) 
Hope that helps
8 0
3 years ago
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Help! i need the answer to this question plsss NO LINKS AND NO DOING IT JUST FOR THE POINTS Will give brainliest to the first se
Alex_Xolod [135]

2745

Step-by-step explanation:

solve it like simultaneously

180x+120y greater than 5145

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5 0
2 years ago
Could someone please explain how to plot the x-intercept of the first equation and what the answer would be?
Elis [28]

Answer:

You would start in the middle of the number line, move right to positive 4x then move up 2 units to land right in line with 2y this is where your plot would be.

Step-by-step explanation:

Hope this helps mark brainliest please!

4 0
3 years ago
The dimensions (width and length) of room1 have been read into two variables : width1 and length1 . The dimensions of room2 have
Lorico [155]

Answer:

Total area of the two rooms   =   (width1length1) +   (width2length2)

Step-by-step explanation:

The area of the rectangular shape is given by = Length * breadth

Therefore the area of the two rooms can be calculated using the above formula when the variables lengths and widths are given.

Area 1= Area of the first room = length * breadth=  (width1length1)

Area 2=Area of the second room = length * breadth=  (width2length2)

Total area of the two rooms = Area1 + Area 2

                                         =   (width1length1) +   (width2length2)

5 0
2 years ago
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