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solong [7]
3 years ago
6

Dustin completed 3/8 of a homework assignment that has 24 problems. Kelsey completed 4/15 of a homework assignment that has 30 p

roblems. Who completed more problems? Please show your work. (Im giving 50 points for ANYBODY to answer this question ;)
Mathematics
2 answers:
NISA [10]3 years ago
8 0

Dustin - 3/8 = 0.375 x 24 = 9

Kelsey - 4/15 = 3.75 x 30 = 8

So, therefore, Dustin completed more problems than Kelsey :)

Verdich [7]3 years ago
3 0
3/8×24=9 problems completed by Dustin.
4/15×30=8 problems completed by Kelsey
Answer: Sustin
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7. The largest of the Great Pyramids in Egypt was built with a square base,
strojnjashka [21]

Answer:

Difference between the original and current volumes = 4013140.30 cubic feet

Step-by-step explanation:

Largest pyramid has the square base with one edge = 754 feet

Area of the square base = (Side)²

                            = (754)²

                            = 568516 square feet

Volume of the pyramid = \frac{1}{3}(\text{Area of the base})(\text{Height})

                                       = \frac{1}{3}\times 568516\times 481

                                       = 91152065.3 cubic feet

After erosion,

Area of the base = (745)² = 555025 square feet

Volume of the pyramid = \frac{1}{3}(555025)(471)

                                       = 87138925 cubic feet

Difference between the original and current volumes of the pyramid

= 91152065.30 - 87138925

= 4013140.30 cubic feet

5 0
3 years ago
Need help :)<br><br><br><br> pleaseeeeeee :(
gayaneshka [121]

Answer: x\geq 88

This means that he has to save at least $88 or more to have enough money.

Step-by-step explanation:

He has $37 and he needs to save more (+) but we don't know how much more that is, so that's why that is our unknown value. (x). The sum of them has to be at least 125 or greater.

37+x\geq 125

Subtract 37

x\geq125-37

x\geq 88

8 0
3 years ago
Use the distributive property to write an equivalent expression for each expression below.
IRINA_888 [86]

A.36x-27y-6

B.12x-6y+2

3 0
3 years ago
11. Mr. Smith showed his dass the table below
Over [174]
The answer gotta be 9
8 0
2 years ago
(x-yi)(3+5i) is the conjugate of 6+24i
Nataly_w [17]

Answer:

x=-3

y=3

(-3-3i)(3+5i)

Step-by-step explanation:

(x-yi)(3+5i)\\=3x+5xi-3yi+5y\\=(3x+5y)+(5x-3y)i\\

and we have that must equal

6-24i

3x+5y=6

5x-3y=-24 and if we work it we found out that the solutions are

x=-3 and

y=3

5 0
2 years ago
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