3 years ago

Hello

Mathematics

1 answer:

konstantin123 [22]3 years ago

4 0

Answer: hii

Step-by-step explanation:

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The ten's digit of a two digit number is 1 more than 4 times the units' digit. if 63 is subtracted from the number, the order of

ser-zykov [4K]

Let x be the digit in the tens place and y be the digit in the ones place.
so, the digit is xy

The ten's digit of a two digit number is 1 more than 4 times the units' digit.
x = 4y + 1

63 is subtracted from the number, the order of the digits is reversed
10x + y - 63 = 10y + x
9x - 9y = 63

x = 4y + 1 ------------ (1)
9x - 9y = 63 ---------- (2)

Sub (1) into (2)
9(4y + 1) - 9y = 63
36y + 9 - 9y = 63
27y = 63 - 9
27y = 54
y = 2 ------- sub into (1)

x = 4(2) + 1 = 9

x = 9, y = 2
The number is 92

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4 years ago

Find the x -intercept and y -intercept of the line. 2x-3y=6

Mumz [18]

Y-intercept= (0,2)
x-intercept= (3,0)
Why?
The x-intercept is when y is 0 and y-intercept is when x is 0.

5 0

3 years ago

Shawna won 51 pieces of gum playing basketball at her school's game night. Later, she gave three to each of her friends. She onl

Tanya [424]

15 friends got 3 pieces

51-6=45
45/3=15

7 0

3 years ago

How do I do this plz help

n200080 [17]

Answer:

The formula to find the perimeter of a rectangle is 2L + 2W.

Here L=5 and W=2; hence:

2*5+2*2

=14

The perimeter is 14.

The formula to find the area of a rectangle is length × width; hence:

5*2=10

The area of the rectangle is 10.

4 0

3 years ago

Read 2 more answers

Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gen

erma4kov [3.2K]

You need to use the binomial probability formula:
$p(k) = \frac{n!}{k!(n-k)!} p^{k} (1-p)^{n-k}$

where:
n = total number of events = 10
k = number of events we are testing = 6
p = probability of event happening = 0.5

$p(6) = \frac{10!}{6!(10-6)!} 0.5^{6} (1-0.5)^{10-6}$
= 210×0.015625×0.0625
= 0.205078

Hence, the probability of getting 6 boys out of 10 births is p = 0.205.

6 0

4 years ago