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kolbaska11 [484]
4 years ago
13

PLEASE HELP!!!!!!!!!!!!!

Mathematics
1 answer:
Marianna [84]4 years ago
7 0

Answer:

d

Step-by-step explanation:

formula for area of a triangle is base * width * 1/2

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4) Look at this set of 5 numbers: 5 3 5 3 4
e-lub [12.9K]
<h3>Answer: It increases by 1</h3>

==========================================================

Explanation:

To compute the mean, we first add up the numbers

5+3+5+3+4 = 20

Then divide by 5 since there are 5 numbers in the set

20/5 = 4

The mean is 4.

---------------

Now replace one of the '3's with 8 and recompute the mean

5+8+5+3+4 = 25

25/5 = 5

The mean is now 5.

The old mean in the previous section was 4.

The mean has increased by 1 since 5-4 = 1.

Side note: The increase from 3 to 8 is +5, which when dividing by 5, we're basically incrementing the mean by +1.

8 0
2 years ago
Read 2 more answers
Lucy is tiling her bathroom. She buys white and blue tiles in the ratio 13:2.Blue tiles cost £2.80 while white tiles cost £2.35.
krok68 [10]

Answer:

* Lucy spent £289.2 on tiles *

Step-by-step explanation:

We know that the tiles are present in a 13 to 2 ratio ( 13 : 2 ) so if there are 16 blue tiles that she buys, the number of red tiles bought should be represented the following -

\frac{13}{2} = \frac{x}{16} ... now this is only assuming that the 13 : 2 ratio is meant by white : blue tiles. Let's solve through cross - multiplication,

13 * 16 = 2x,

208 = 2x,

x = 104 white tiles

So if there are 104 white tiles, and 16 blue tiles, we can determine the total amount Lucy spent on tiles by associating the cost to the type of tile,

£2.80 * 16 = £44.8,

£2.35 * 104 = £244.4,

Total Amount Lucy Spent on Tiles = £44.8 + £244.4 = £289.2

8 0
3 years ago
Needing help please.............
Margaret [11]
Use the formula y=mx+b
6 0
4 years ago
White blood cells, I Helper cells and antibodies are all a part
ioda

Answer:

D.)

Step-by-step explanation:

8 0
3 years ago
Find the percent of each number.<br> 1. 32% of 60 =
Advocard [28]

Answer:

Step-by-step explanation:

8 0
3 years ago
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