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Stels [109]
3 years ago
11

Some pencils are to be shared between Grade 7, Grade 8 and Grade 9 students in the

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

1312

Step-by-step explanation:

if grade 8 has 196 more, that means 196 represents two cause 5 is 2 more than 3, so then you divide 196 in half to get 98, then add 196 and 98, so grade 7 gets 294 pencils, the to find how many for grade 8 you take 294 plus 196 and get 460 so grade 8 gets 460, and for grade 9 you add 460 and 98 to get 558, then just add, 294, 460, and 558 and you get 1312. hope this helps

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Anna007 [38]

Answer:  Third investment is the least simple interest and Second investment is the  most earned simple interest.

Step-by-step explanation:

Since we have given that

Investment of $3,000 at 5% simple interest for 20 years .

Simple interest would be

\dfrac{3000\times 5\times 20}{100}\\\\=\$3000

Investment of $1,000 at 16% simple interest for 20 years

Simple interest would be

\dfrac{1000\times 16\times 20}{100}\\\\=\$3200

Investment of $3,000 at 16% simple interest for 2 years.

Simple interest would be

\dfrac{3000\times 16\times 2}{100}\\\\=\$960

Hence, Third investment is the least simple interest and Second investment is the  most earned simple interest.

7 0
4 years ago
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frozen [14]

Answer:

67.00

Step-by-step explanation:

Add the numbers.

You get 67.08.

You want it rounded.

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3 0
3 years ago
HELP WITH 2 MATH QUESTIONS!!
mixas84 [53]

Answer:

Step-by-step explanation:

In order to determine the number of wax cubes needed to make the candle, we divide the volume of the pyramid by the volume of the cube. That is,

             number of wax = volume of mold / volume of wax

 The formulas are,

              number of wax = (1/3)Ah / s³

Where A is the area of the base, in this case 9 cm x 9 cm which is equal to 81 cm². Substituting the known values from the given above,

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4 0
4 years ago
Read 2 more answers
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Elena-2011 [213]

Answer:

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Step-by-step explanation:

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2. y = 9x + 4

For the first one, we must first get rid of the denominator by multiplying everything by 5, so we get 5y = -15x + 25, and then you can add 3x to both sides to arrive at your first standard eqn, 5y + 15x = 25.

For the second, all you need to do is swap the y and the 4, subtracting both y and 4 from each side, arriving at 9x - y = -4

6 0
3 years ago
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lakkis [162]

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Step-by-step explanation:

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3 years ago
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