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scoray [572]
3 years ago
8

The school hiking club has completed 4 out of 5 hikes so far this year. They have hiked 4.6 miles, 3.7 miles, 5.1 miles, and 2.9

miles. If their goal is to hike 20 total miles, how many miles does the last hike need to be?
1.7 miles
4.7 miles
2.7 miles
3.7 miles
Mathematics
1 answer:
sweet [91]3 years ago
6 0

Answer:

there last hike i think needs to be 7.2 miles long

Step-by-step explanation:

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A rectangle’s length is three times its width, w. Its area is 243 square units. Which equation can be used to find the width of
Anastaziya [24]

Answer:

b) 3w² = 243

Step-by-step explanation:

area = L x w

L = 3w

substitute for L:

243 = 3w x w = 3w²

3w² = 243

5 0
3 years ago
I need urgent help with this one
Serhud [2]

let the unknown answer be equal to f

.-2.1 - f = -3/2

-f = -3/2 + 2.1

-f = 0.6

f = -0.6

5 0
2 years ago
Read 2 more answers
In January 2002, two students made worldwide headlines by spinning a Belgian euro 250 times and getting 140 heads—that’s 56%. Th
natita [175]

Answer with explanation:

The 90% confidence interval (51%, 61%) for proportion means that the proportion of getting heads lie in it.

Given : Total number of times coin is tossed = 250

Number of times they got head =140

The probability of getting a head = 0.56

The confidence interval for proportion is given by :-

p\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

Given significance level : \alpha=1-0.90=0.1

Critical value : z_{\alpha/2}=z_{0.05}=\pm1.645

Now, the 90​% confidence interval for proportion will be :-

0.56\pm (1.645)\sqrt{\dfrac{0.56(1-0.56)}{250}}\approx0.56\pm 0.0516\\\\=(0.56-0.0516,0.56+0.0516)=(0.5084,\ 0.6116)\approx(51\%,\ 61\%)

Hence, the given confidence interval is correct.

6 0
3 years ago
Branliest to correct answer explain how you solved it please
vesna_86 [32]
32.7%

There are 13 clubs in a 52 card deck, and there are 4 kings in a 52 card deck.

13 + 4 = 17
17/52 = 0.3269
0.3269 * 100 = 32.69
32.69 is rounded to 32.7

I hope I helped. I would appreciate Brainliest.
5 0
3 years ago
F PR = 4x – 2 and RS = 3x – 5, which expression represents PS?
skelet666 [1.2K]

Answer:

p:s

6x:2

Step-by-step explanation:

find prs first which u find by doing

pr. rs

4x-2×3x) 3x-2×2

pr=12x:6x

rs=6x:4

p. r. s

12x: 6x 4

6x. 3x. 2

hence ps

6x:2

4 0
3 years ago
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