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Otrada [13]
3 years ago
14

Help me please. Plzzzz.

Mathematics
2 answers:
Deffense [45]3 years ago
8 0
16 is going to be right
koban [17]3 years ago
5 0
I think 16 is correct
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Need help asap<br><br> 7-3d≥28
Firdavs [7]
3d≥28 + 7 
3d≥ 35
d≥35/3
6 0
3 years ago
A pile of coins, consisting of quarters and half dollars, it worth $11.75. If there are 2 more quarters than half dollars, how m
lord [1]
Let the number of half dollars be x,

number of quarters = x + 2
amount of half dollars = 0.5x
amount of quarters = 0.25(x + 2)
= 0.25x + 0.5
total amount = 0.5x + 0.25x + 0.5
= 0.75x + 0.5
0.75x + 0.5 = 11.75
0.75x = 11.25
x = 15
number of quarters = x + 2
= 15 + 2
= 17

There are 17 quarters and 15 half dollars.
3 0
3 years ago
Find the surface area of a square pyramid with a length of 5 cm and a slant height of 8cm.
Tems11 [23]
Area of the square base = 5^2 = 25 cm^2
Area of one of the triangular side = 1/2 * 5 * 8 = 20 cm^2 and there are 4 sides
So the surface area  of while pyramid = 4 * 20 + 25 = 105 cm^2

Volume of the cone = (1/3) pi r^2 h
  = (1/3) pi * 5^2 * 8
  =  209.44  ft^2
8 0
3 years ago
Definicion etimologica de la palabra poliedro
lesantik [10]

Answer:

Poli (muchas) edro (caras) luego sería muchas caras lo que representas las figuras poliédricas.

Step-by-step explanation:

La palabra poliedro viene del griego clásico πολύεδρον (polyedron), de la raíz πολύς (polys), «muchas» y de ἕδρα (hedra), «base», «asiento», «cara».

6 0
2 years ago
Sally buys the items listed below. Find the total.
givi [52]

Answer:

the answer is your welcome

$33.52

5 0
2 years ago
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