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3 years ago

Pls help with this question. I will give brainliest answer :)

Mathematics

2 answers:

____ [38]3 years ago

8 0

Answer:

lance

Step-by-step explanation:

because they get 7 point each and he has more

tino4ka555 [31]3 years ago

5 0

Lance is the answer

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A mouse climbs up a well of 86 meters. It advances 14 meters during the night, but during the day it retreats 2. The mouse will

Deffense [45]

Step-by-step explanation:

we assume day and night are equally long.

and the mouse will start at night of day 1.

then, on day 2, it will first retreat 2 meters (during daylight) and then advance 14 meters (at night).

so, on every full day, the mouse will effectively advance 12 meters (-2 + 14 = 12).

with a starting value of 14 (the first night).

so, we are getting an arithmetic sequence

an = an-1 + c

c = 12 in our case.

a1 = 14

a2 = a1 + 12 = 14+12 = 26

a3 = a2 + 12 = a1 + 12 + 12 = 14 + 2×12 = 38

an = a1 + (n-1)×12 = 14 + 12(n-1)

at what n will it reach 86 ?

86 = 14 + 12(n-1) = 14 + 12n - 12 = 2 + 12n

84 = 12n

n = 7

so, on the 7th day the mouse will reach the surface (if we truly count the first starting night day 1 - this is up to your teacher, but I would).

7 0

2 years ago

HURRY PLSSS

vodka [1.7K]

Answer:

Step-by-step explanation:

the answer is c because you multiply 4 and 2 and get 8 and multiply 8 by 8 and get 64 then you use 4 again and multiply 64 by 4 so you get 256 and round that 254

6 0

3 years ago

Read 2 more answers

Contains fractions <br> 6v-5/8=7/8

Novay_Z [31]

Answer: v = 2

Step-by-step explanation:

Your equation:

$\frac{6v-5}{8} = \frac{7}{8}$

You can multiply both sides by 8 to eliminate the fraction, which gives you this:

6v - 5 = 7

Then, you can solve for it:

6v = 12

v = 2

4 0

4 years ago

Read 2 more answers

Bobby and $9 per hour and $6 for each delivery he makes. He wants to earn more than $155 an 8 hour work day. What is the least n

kap26 [50]

<h3>The least number of deliveries that Bobby must make to reach his goal is 14</h3>

<em><u>Solution:</u></em>

Given that,

Bobby per $9 per hour and $6 for each delivery he makes

Let "D" be the number of delivery he makes

He wants to earn more than $155 an 8 hour work day

<em><u>Thus a inequality is framed as:</u></em>

$9 ( 8 ) + 6(D) > 155\\\\72 + 6D > 155$

Subtract 72 from both sides

72 + 6D - 72 > 155 - 72

6D > 83

Divide both sides by 83

D > 13.83

Thus least number of deliveries that Bobby must make to reach his goal is 14

8 0

3 years ago

Calculate SP (the sum of products of deviations) for the following scores. Note: Both means are whole numbers, so the definition

Jlenok [28]

Applying the formula, it is found that the SP for both numbers is of 7.

The first step is finding the mean for both sets, hence:

$M_x = \frac{4 + 0 + 1 + 3}{4} = 2$

$M_y = \frac{5 + 2 + 1 + 4}{4} = 3$

Then, the SP(sum of products of deviations) is the sum of the multiplications between each value x and the mean, with each respective value of y(same index) and the mean, hence:

$SP = (4 - 2)(5 - 3) + (0 - 2)(2 - 3) + (1 - 2)(1 - 3) + (3 - 2)(3 - 4) = 7$

The SP for both numbers is of 7.

A similar problem is given at brainly.com/question/20640860

5 0

3 years ago