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mars1129 [50]
3 years ago
12

The lunchroom tables were clean except for some plates and napkins.

Mathematics
2 answers:
Naddika [18.5K]3 years ago
8 0
The answer for this is (d)
Montano1993 [528]3 years ago
7 0
The answer is D or some
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Use the distributive property to remove the parentheses.<br> 3 (v - 6)
liq [111]
3v - 18. I hope this helped
6 0
3 years ago
Read 2 more answers
One positive number is 9 more than twice another. If their product is 95, find the numbers.
mafiozo [28]

Answer:

The numbers are 19 and 5

Step-by-step explanation:

Given

Let the numbers be x\ and\ y.

So:

x = 9 + 2y --- First statement

x*y = 95 --- second statement

Required

Find x and y

Substitute x = 9 + 2y in x*y = 95

(9 + 2y) * y = 95

9y + 2y^2 = 95

Rewrite as:

2y^2 + 9y - 95 = 0

Expand

2y^2 -10y +19y- 95 = 0

Factorize

2y(y -5) +19(y- 5) = 0

(2y  +19)(y- 5) = 0

Solve for y

2y + 19 =0 or y - 5 = 0

2y = -19 or y = 5

y = -\frac{19}{2} or y=5

Since the numbers are positive, we take only:

y=5

Substitute y=5 in x = 9 + 2y

x = 9 + 2 * 5

x = 9 + 10

x = 19

<em>The numbers are 19 and 5</em>

5 0
3 years ago
Luca has a box of dog toys. There are 3 bones, 5 balls, and a stuffed animal. What is the ratio of balls to stuffed animals?
Anna007 [38]
The answer would be D. 1:5 since there is 1 stuffed animal and 5 balls.
5 0
3 years ago
Franco ate some pizza. Two - thirds of a pizza is left. Diendra ate 3/4 of the leftover pizza. How much of the whole pizza did D
Leya [2.2K]
I belive the answer is 3/8 of the pizza...i hope this helps!
8 0
4 years ago
The volume of a sphere is 2145 cubic centimeters. What is the approximate diameter of this sphere?
eimsori [14]

Answer:

d = 2(40.11 cm) = 80.22 cm

Step-by-step explanation:

The formula for volume of a sphere is V = (4/3)πr³

and here V = (4/3)πr³ = 2145 cm³

Let's simplify this equation by multiplying both sides by (3/4); this will cause (4/3) to disappear:

(3/4)(4/3)πr³ = (3/4)2145 cm³, or

                 r³ = 1608.75 cm³

Taking the cube root of both sides, we get:

                  r = 40.11 cm

Remembering that diameter = 2 times radius, we calculate the diameter:

                  d = 2(40.11 cm) = 80.22 cm

6 0
4 years ago
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