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Kamila [148]
1 year ago
13

Caleb placed 3 yellow balls and 4 red balls in a row.

Mathematics
1 answer:
qwelly [4]1 year ago
6 0

Answer:

I think it's C)144. because I think it's C

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A square has a side length of 2x+5, write an expression to find the perimeter of the square
Naddika [18.5K]

Answer:

4(2x+5) or 8x+20

Step-by-step explanation:

6 0
2 years ago
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Christina wants to compute the cost of tiling the floor in her bathroom. The floor measures 7 feet 6 inches by 8 feet 10 inches.
ArbitrLikvidat [17]

Answer:

Two boxes will cost \$35.95\cdot 2=\$71.9. The cost of one tile is approximately \dfrac{\$71.9}{67}\approx \$1.08.

Step-by-step explanation:

Note that 1 ft = 12 in, then

7\ ft\ 6\ in=7\cdot 12+6\ in =90\ in,\\ \\8\ ft\ 10\ in=8\cdot 12+10\ in=106\ in.

The area of the floor is

90\cdot 106=9540\ in^2.

Now

1\ ft^2=144\ in^2,

then

144 sq. in - 1 tile,

9540 sq. in - x tiles.

Mathematically,

\dfrac{144}{9540}=\dfrac{1}{x},\\ \\x=\dfrac{9540}{144}=66.25

tiles is needed to cover the floor (67 full tiles).

Each box of tiles contains 45 tiles, so Cristina has to buy 2 boxes. These two boxes will cost \$35.95\cdot 2=\$71.9. The cost of one tile is approximately \dfrac{\$71.9}{67}\approx \$1.08.

7 0
3 years ago
Simplify 2- 5/8 and -2 3/5 A. -6 33/40 B. 4- 3/8 C. 4 3/8 d. 6 33/40
worty [1.4K]

Answer:

Step-by-step explanation:

Convert mixed fraction to improper fraction.

-2\dfrac{5}{8}*(-2\dfrac{3}{5})=\dfrac{-21}{8}*\dfrac{-13}{5}\\

                    =\dfrac{(-21)*(-13)}{8*5}\\\\\\=\dfrac{273}{40}\\\\=6\dfrac{33}{40}

4 0
2 years ago
Translate this phrase into an algebraic expression. 78 less than Amaris test score. Use C to represent Amari's test score PLEAS
Elodia [21]

Answer:

it's 78<C. < means less than

8 0
2 years ago
What is the volume of a hemisphere with a diameter of 60.9 in, rounded to the
Oksanka [162]
78 I think because you have to see the other 2 numbers
8 0
2 years ago
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